Data / Nonprofits / Maine / Portland
Nonprofits in Portland, ME: 936 registered with the IRS
936 nonprofits are registered with the IRS in Portland, ME, 784 of them 501(c)(3) charities; the 398 that report revenue took in $6.93 billion. The largest by revenue: Mainehealth ($4.71 billion), Martins Point Generations Advantage Inc ($745.8 million), Martins Point Health Care Inc ($550.1 million). Most common causes: arts, culture and humanities (115), education (79), philanthropy, voluntarism and grantmaking foundations (73).
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The 500 largest by revenue
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Mainehealth | Health care | 501(c)(3) | 1958 | $4.71 billion | $4.58 billion | 2025-09 |
| Martins Point Generations Advantage Inc | Health care | 501(c)(4) | 2016 | $745.8 million | $221.8 million | 2024-12 |
| Martins Point Health Care Inc | Health care | 501(c)(3) | 1982 | $550.1 million | $575.9 million | 2024-12 |
| Maine Guaranteed Access Reinsurance Association | Health care | 501(c)(4) | 2015 | $79.8 million | $87 million | 2024-12 |
| Shalom House | Mental health and crisis intervention | 501(c)(3) | 1971 | $39.1 million | $20.2 million | 2025-06 |
| Maine College of Art | Education | 501(c)(3) | 1982 | $38.6 million | $76.1 million | 2025-06 |
| Preble Street | Human services | 501(c)(3) | 1990 | $36.5 million | $42.1 million | 2025-06 |
| Evergreen Credit Union | 501(c)(14) | 1969 | $33.2 million | $569.2 million | 2024-12 | |
| Waynflete School | Education | 501(c)(3) | 1943 | $32 million | $79.3 million | 2025-06 |
| Maine Technology Institute | Education | 501(c)(3) | 2004 | $30.5 million | $22.5 million | 2025-06 |
| Catholic Charities Maine | Human services | 501(c)(3) | 1946 | $29.1 million | $23.3 million | 2025-09 |
| Gulf of Maine Research Institute | Animal-related | 501(c)(3) | 1996 | $23.3 million | $59.4 million | 2025-06 |
| Jha Services Inc | 501(c)(3) | 1991 | $21.9 million | $21 million | 2025-04 | |
| Mainhealth Services | Health care | 501(c)(3) | 1998 | $19.1 million | $444.8 million | 2025-09 |
| Cedars Nursing Care Center Inc | Health care | 501(c)(3) | 1942 | $15.2 million | $51.5 million | 2025-04 |
| Portland Museum of Art | Arts, culture and humanities | 501(c)(3) | 1983 | $14.6 million | $96.1 million | 2025-01 |
| American Schools Abroad Inc | 501(c)(3) | 1967 | $14.6 million | $18.7 million | 2025-06 | |
| Jha Assisted Living Inc | Housing and shelter | 501(c)(3) | 2005 | $14.4 million | $19.9 million | 2025-04 |
| University of Southern Maine Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2000 | $14.3 million | $58.6 million | 2025-06 |
| Avesta Housing Development Corporation | Housing and shelter | 501(c)(3) | 1976 | $13.5 million | $82.7 million | 2024-12 |
| Pine Tree Legal Assistance Inc | Crime and legal-related | 501(c)(3) | 1966 | $13.1 million | $10.2 million | 2024-12 |
| Community Housing of Maine Inc | Housing and shelter | 501(c)(3) | 1994 | $10.9 million | $57.6 million | 2025-06 |
| Avesta Housing Management Corporation | Housing and shelter | 501(c)(3) | 2019 | $10.9 million | $5.4 million | 2024-12 |
| Seventy-Five State Street | Housing and shelter | 501(c)(3) | 1942 | $10.5 million | $26.6 million | 2024-12 |
| Biodiversity | Environment | 501(c)(3) | 1999 | $9.8 million | $7.7 million | 2025-04 |
| Home for the Aged | Human services | 501(c)(3) | 1942 | $9.4 million | $32.4 million | 2025-06 |
| Boys & Girls Clubs of Southern Maine | Youth development | 501(c)(3) | 1926 | $9.4 million | $32.1 million | 2025-06 |
| United Way Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1956 | $8.9 million | $19.5 million | 2025-06 |
| Milestone Recovery | Mental health and crisis intervention | 501(c)(3) | 1967 | $8.7 million | $5.5 million | 2025-06 |
| Community Dental | Health care | 501(c)(3) | 1943 | $8.1 million | $6.9 million | 2025-12 |
| Alfond Scholarship Foundation | Education | 501(c)(3) | 2008 | $7.6 million | $1.8 million | 2025-06 |
| Senator George J Mitchell Scholarship Research Institute | Education | 501(c)(3) | 1999 | $7.5 million | $60.2 million | 2025-12 |
| Portland Public Library | Education | 501(c)(3) | 1943 | $7.5 million | $17.3 million | 2025-06 |
| Young Mens Christian Association of Southern Maine | 501(c)(3) | 1937 | $7.1 million | $14.1 million | 2025-06 | |
| Jewish Community Alliance of Southern Maine | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2000 | $6.3 million | $13.7 million | 2025-08 |
| Catholic Foundation of Maine | Religion-related | 501(c)(3) | 2005 | $5.8 million | $45.4 million | 2025-06 |
| Maine Peoples Resource Center | 501(c)(3) | 1985 | $5.8 million | $3.6 million | 2024-12 | |
| Reverb Inc | Environment | 501(c)(3) | 2006 | $5.7 million | $6.7 million | 2025-12 |
| Portland Maine Symphony Orchestra | Arts, culture and humanities | 501(c)(3) | 1933 | $5.5 million | $16.9 million | 2025-07 |
| Maine Needs Inc | Human services | 501(c)(3) | 2020 | $5.4 million | $1.1 million | 2024-12 |
| State Street Housing Preservation Corporation | Housing and shelter | 501(c)(3) | 1991 | $5.4 million | $21.4 million | 2025-06 |
| Baxter Academies of Maine | Education | 501(c)(3) | 2012 | $5.2 million | $8 million | 2025-06 |
| Maine Pretrial Services Inc | 501(c)(3) | 1976 | $5.1 million | $1.6 million | 2025-06 | |
| Breakwater Learning | Education | 501(c)(3) | 1977 | $5 million | $5.7 million | 2025-06 |
| Pan Atlantic Foundation | International, foreign affairs and national security | 501(c)(3) | 2016 | $4.8 million | $3.1 million | 2024-12 |
| Great Schools Partnership Inc | Education | 501(c)(3) | 2009 | $4.7 million | $1.9 million | 2025-06 |
| MMC Realty Corp | Health care | 501(c)(3) | 1989 | $4.3 million | $54.8 million | 2025-09 |
| Childrens Odyssey | Education | 501(c)(3) | 1993 | $4.3 million | $728,578 | 2025-08 |
| Childrens Museum and Theatre of Maine | Arts, culture and humanities | 501(c)(3) | 1977 | $4.2 million | $14.2 million | 2025-06 |
| Portland Housing Development Corporation | 501(c)(4) | 1984 | $4.2 million | $27 million | 2025-06 | |
| Habitat for Humanity of Greater Portland Inc | 501(c)(3) | 1985 | $3.9 million | $6.3 million | 2025-06 | |
| Maine Initiatives Inc | Crime and legal-related | 501(c)(3) | 1994 | $3.9 million | $6.4 million | 2025-09 |
| Commonspace | Health care | 501(c)(3) | 1996 | $3.9 million | $679,078 | 2025-06 |
| Educate Maine | Education | 501(c)(3) | 2006 | $3.6 million | $1.8 million | 2024-12 |
| Through These Doors | Human services | 501(c)(3) | 1978 | $3.5 million | $2.9 million | 2025-09 |
| Frannie Peabody Center Inc | 501(c)(3) | 1987 | $3.4 million | $7 million | 2025-12 | |
| Immigrant Legal Advocacy Project | Crime and legal-related | 501(c)(3) | 1993 | $3.3 million | $2 million | 2024-12 |
| Prosperityme | Human services | 501(c)(3) | 2009 | $3.3 million | $7 million | 2025-12 |
| Portland Ovations | Arts, culture and humanities | 501(c)(3) | 1977 | $3.2 million | $3.8 million | 2025-06 |
| Iris Network | 501(c)(3) | 1936 | $2.9 million | $11.3 million | 2025-09 | |
| Diocesan Bureau of Housing Deering Pavilion | Housing and shelter | 501(c)(3) | 1946 | $2.9 million | $9.3 million | 2025-06 |
| Learning Works | Human services | 501(c)(3) | 1979 | $2.8 million | $1.8 million | 2025-06 |
| Northeast Hearing & Speech Center Inc | Health care | 501(c)(3) | 1972 | $2.7 million | $4.5 million | 2025-06 |
| American Civil Liberties Union of Maine Foundation | Civil rights, social action and advocacy | 501(c)(3) | 1980 | $2.7 million | $7.7 million | 2025-03 |
| Maine Defense Industry Alliance | 501(c)(6) | 2026 | $2.7 million | $3.2 million | 2025-09 | |
| Childrens Center | Education | 501(c)(3) | 2000 | $2.7 million | $1.6 million | 2025-08 |
| Maine Immigrants Rights Coalition | Human services | 501(c)(3) | 2018 | $2.6 million | $968,515 | 2024-12 |
| Maine Credit Union League | 501(c)(6) | 1970 | $2.6 million | $4.1 million | 2024-12 | |
| Village Square Housing Corporation | Housing and shelter | 501(c)(3) | 1993 | $2.5 million | $3.6 million | 2024-12 |
| Safe Passage | International, foreign affairs and national security | 501(c)(3) | 2001 | $2.5 million | $3.1 million | 2025-12 |
| Portland Stage Company Inc | Arts, culture and humanities | 501(c)(3) | 1975 | $2.4 million | $9.2 million | 2025-06 |
| Indigo Arts Alliance | Arts, culture and humanities | 501(c)(3) | 2019 | $2.3 million | $6 million | 2025-12 |
| Maple Grove Elderly Housing Corporation | Housing and shelter | 501(c)(3) | 1977 | $2.3 million | $15.1 million | 2024-12 |
| Seton Village Inc | 501(c)(3) | 1982 | $2.3 million | $6.1 million | 2025-06 | |
| Ronald McDonald House Charities Inc | Health care | 501(c)(3) | 1977 | $2.2 million | $9.5 million | 2025-12 |
| Foundation for Portland Public Schools | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1992 | $2.2 million | $2.2 million | 2025-06 |
| Hill Street Terrace Housing Corp | Housing and shelter | 501(c)(3) | 1978 | $2.1 million | $8.2 million | 2024-12 |
| Olympia Snowe Womens Leadership Ins | Human services | 501(c)(3) | 2014 | $2.1 million | $10.6 million | 2025-12 |
| Susan L Curtis Charitable Foundation | Recreation and sports | 501(c)(3) | 1971 | $2 million | $5.7 million | 2024-12 |
| DBH Management Inc | 501(c)(3) | 1946 | $2 million | $2 million | 2025-06 | |
| The Maine Heritage Policy Center | Education | 501(c)(3) | 2003 | $1.9 million | $891,365 | 2024-12 |
| Maine Historical Society | Arts, culture and humanities | 501(c)(3) | 1938 | $1.9 million | $13.3 million | 2025-06 |
| Maine Peoples Alliance | Community improvement and capacity building | 501(c)(4) | 1984 | $1.9 million | $2.4 million | 2024-12 |
| Mainely Smiles | Health care | 501(c)(3) | 2022 | $1.9 million | $639,515 | 2024-12 |
| Maine International Trade Center | International, foreign affairs and national security | 501(c)(3) | 1997 | $1.9 million | $1.6 million | 2025-06 |
| Portland Community Squash | Recreation and sports | 501(c)(3) | 2014 | $1.9 million | $10.5 million | 2024-12 |
| The Maine Narrow Gauge Railroad and Industrial Hertiage Trust | Science and technology | 501(c)(3) | 1993 | $1.8 million | $1.9 million | 2024-03 |
| Portland Recovery Community Center | Mental health and crisis intervention | 501(c)(3) | 2018 | $1.8 million | $2.2 million | 2025-06 |
| Partners for World Health | International, foreign affairs and national security | 501(c)(3) | 2009 | $1.7 million | $5.1 million | 2024-12 |
| VLP Inc | Crime and legal-related | 501(c)(3) | 2017 | $1.7 million | $2.2 million | 2025-12 |
| Affinity | Diseases, disorders and medical disciplines | 501(c)(3) | 2006 | $1.7 million | $809,927 | 2025-06 |
| Locker Project | Food, agriculture and nutrition | 501(c)(3) | 2014 | $1.7 million | $644,855 | 2025-06 |
| Portland Rugby Football Club | Recreation and sports | 501(c)(3) | 2014 | $1.7 million | $1.7 million | 2025-06 |
| Cultivating Community | Food, agriculture and nutrition | 501(c)(3) | 2003 | $1.7 million | $955,007 | 2025-12 |
| Common Dreams Inc | Social science | 501(c)(3) | 2007 | $1.7 million | $480,668 | 2024-12 |
| Greater Portland Family Promise | Human services | 501(c)(3) | 2016 | $1.6 million | $1.6 million | 2025-12 |
| Friends of Casco Bay | Environment | 501(c)(3) | 1991 | $1.6 million | $3.2 million | 2026-03 |
| Presente Maine | Human services | 501(c)(3) | 2022 | $1.6 million | $1.2 million | 2024-12 |
| University of Maine School of Law Foundation | Education | 501(c)(3) | 2001 | $1.6 million | $7.6 million | 2025-06 |
| Friends of Spannocchia | Employment | 501(c)(3) | 2002 | $1.6 million | $1.3 million | 2025-12 |
| Southern Maine Jewish Cemetery Association | Mutual and membership benefit | 501(c)(13) | 2016 | $1.6 million | $1.8 million | 2024-12 |
| Womens Board of the Maine Medical Center | 501(c)(3) | 1946 | $1.5 million | $1.1 million | 2025-09 | |
| Gateway Community Services Maine | Human services | 501(c)(3) | 2016 | $1.5 million | $466,139 | 2024-12 |
| Maine Humanities Council | Arts, culture and humanities | 501(c)(3) | 1976 | $1.5 million | $4.4 million | 2025-10 |
| In Her Presence | Community improvement and capacity building | 501(c)(3) | 2017 | $1.5 million | $1.4 million | 2024-12 |
| Victoria Mansion | Arts, culture and humanities | 501(c)(3) | 1971 | $1.5 million | $13.2 million | 2025-03 |
| The Root Cellar | 501(c)(3) | 1989 | $1.4 million | $3.3 million | 2025-03 | |
| 211 Maine Inc | Mental health and crisis intervention | 501(c)(3) | 2003 | $1.4 million | $849,448 | 2025-06 |
| Project Home | Housing and shelter | 501(c)(3) | 2018 | $1.4 million | $993,978 | 2024-12 |
| Roman Catholic Diocese of Portland Diocesan Priests Medical Benefits | Mutual and membership benefit | 501(c)(9) | 2020 | $1.4 million | $7.9 million | 2025-06 |
| Downtown Improvement District Inc | 501(c)(4) | 1993 | $1.4 million | $486,813 | 2025-06 | |
| Catherine Morrill Day Nursery | Human services | 501(c)(3) | 1937 | $1.4 million | $2.5 million | 2025-09 |
| Rippleffect Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 2000 | $1.3 million | $2 million | 2025-03 |
| The Center for Grieving Children Gretchen A Johnson | Youth development | 501(c)(3) | 1988 | $1.3 million | $2 million | 2025-06 |
| Co-Occurring Collaborative Serving Maine | Mental health and crisis intervention | 501(c)(3) | 1998 | $1.3 million | $501,930 | 2025-06 |
| Grace Outreach | Education | 501(c)(3) | 2004 | $1.3 million | $394,967 | 2025-06 |
| Maine Island Trail Association | Environment | 501(c)(3) | 1993 | $1.3 million | $3.1 million | 2025-09 |
| Portland Parks Conservancy | Human services | 501(c)(3) | 2019 | $1.3 million | $1.2 million | 2025-06 |
| Cumberland Club | Recreation and sports | 501(c)(7) | 1942 | $1.3 million | $1.9 million | 2024-12 |
| Maine Association of Recovery Residences | Housing and shelter | 501(c)(3) | 2022 | $1.3 million | $108,218 | 2024-12 |
| Maine Center for Enterprise Development | 501(c)(3) | 1997 | $1.3 million | $358,879 | 2025-12 | |
| Maine Credit Unions Campaign for Ending Hunger | Human services | 501(c)(3) | 2009 | $1.2 million | $1.4 million | 2024-12 |
| Hope Acts | Human services | 501(c)(3) | 2013 | $1.2 million | $1.7 million | 2024-12 |
| Cross Cultural Community Services | Health care | 501(c)(3) | 2012 | $1.2 million | $549,025 | 2024-12 |
| Maine Association of Nonprofits | Community improvement and capacity building | 501(c)(3) | 1996 | $1.2 million | $915,605 | 2025-12 |
| Portland Regional Chamber | 501(c)(6) | 1952 | $1.2 million | $2.1 million | 2025-06 | |
| Association of State Wetland Managers Inc | Environment | 501(c)(3) | 1988 | $1.2 million | $610,823 | 2024-12 |
| Sail Maine Inc | Arts, culture and humanities | 501(c)(3) | 1996 | $1.1 million | $1.1 million | 2024-12 |
| Palaver Strings Incorporated | Arts, culture and humanities | 501(c)(3) | 2015 | $1.1 million | $431,808 | 2025-06 |
| Mainframe | Civil rights, social action and advocacy | 501(c)(4) | 2025 | $1.1 million | $383,550 | 2025-12 |
| Space Gallery | Arts, culture and humanities | 501(c)(3) | 2003 | $1.1 million | $1.5 million | 2024-12 |
| Berry Park Housing Corporation | Housing and shelter | 501(c)(3) | 1993 | $1.1 million | $4.8 million | 2024-12 |
| Greater Portland Immigrant Welcome Center | Human services | 501(c)(3) | 2017 | $1.1 million | $188,963 | 2024-12 |
| Pine Tree Housing Agency | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2005 | $1.1 million | $7.6 million | 2024-12 |
| Maine Academy of Modern Music | Arts, culture and humanities | 501(c)(3) | 2009 | $1.1 million | $21,280 | 2025-08 |
| Junior Achievement of Maine Inc | International, foreign affairs and national security | 501(c)(3) | 1994 | $1.1 million | $999,233 | 2025-06 |
| Haudenosaunee Nationals Development Group | Youth development | 501(c)(3) | 2017 | $1.1 million | $321,794 | 2025-12 |
| Friends of Katahdin Woods and Waters | Arts, culture and humanities | 501(c)(3) | 2017 | $1 million | $1.3 million | 2025-12 |
| Wayside Food Programs | Food, agriculture and nutrition | 501(c)(3) | 1992 | $1 million | $2.2 million | 2024-12 |
| Gulf of Maine Properties Inc | Science and technology | 501(c)(3) | 2007 | $1 million | $9.4 million | 2025-06 |
| Saco Housing Development Corp | 501(c)(3) | 1976 | $1 million | $6.9 million | 2024-12 | |
| Maine Association for New Americans | Community improvement and capacity building | 501(c)(3) | 2017 | $995,073 | $413,763 | 2024-12 |
| Maine Fore Charity | Human services | 501(c)(3) | 2021 | $984,683 | $2,067 | 2024-12 |
| Maine Civic Action | Civil rights, social action and advocacy | 501(c)(4) | 2019 | $964,373 | $261,779 | 2024-12 |
| Telling Room | Youth development | 501(c)(3) | 2006 | $959,912 | $567,007 | 2025-06 |
| Halfway House Inc | Crime and legal-related | 501(c)(3) | 1974 | $949,947 | $1.4 million | 2025-06 |
| Southern Maine Conservation Collaborative | Environment | 501(c)(3) | 2014 | $948,699 | $142,828 | 2025-12 |
| Maine Charitable Mechanic Association | 501(c)(3) | 1943 | $936,425 | $1.5 million | 2026-03 | |
| One Longfellow Square Inc | Arts, culture and humanities | 501(c)(3) | 2012 | $907,322 | $315,511 | 2024-12 |
| Portland Conservatory of Music | Arts, culture and humanities | 501(c)(3) | 1995 | $899,146 | $2 million | 2025-06 |
| Sexual Assault Response Services of Southern Maine | Mental health and crisis intervention | 501(c)(3) | 1977 | $876,020 | $594,553 | 2025-09 |
| Portland Trails | Environment | 501(c)(3) | 1992 | $853,332 | $1.9 million | 2024-12 |
| Maine & Company | 501(c)(6) | 1996 | $828,885 | $469,082 | 2025-06 | |
| Maine Appalachian Trail Club Inc | 501(c)(3) | 1945 | $827,570 | $3.9 million | 2025-03 | |
| Defend Our Health | Environment | 501(c)(3) | 2010 | $819,835 | $919,145 | 2024-12 |
| Boothbay Regional Development Corporation | Housing and shelter | 501(c)(3) | 2023 | $804,961 | $11.7 million | 2025-12 |
| Maine Outdoor Brands Inc | Community improvement and capacity building | 501(c)(6) | 2019 | $803,834 | $246,804 | 2024-12 |
| Benevolent & Protective Order of Elks of the USA | 501(c)(8) | 1951 | $789,045 | $1.3 million | 2025-03 | |
| Sailing Ships Maine | Arts, culture and humanities | 501(c)(3) | 2015 | $775,720 | $856,067 | 2024-12 |
| Trustees of the First Parish in Portland | 501(c)(3) | 1972 | $757,665 | $4.1 million | 2025-06 | |
| American Families for Vaccines Action Fund | Public and societal benefit | 501(c)(4) | 2021 | $757,584 | $101,710 | 2024-12 |
| Maine Access Immigrant Network | Human services | 501(c)(3) | 2005 | $738,872 | $484,656 | 2024-12 |
| Convention Visitors Bureau of Greater Portland | 501(c)(6) | 1987 | $726,482 | $390,137 | 2024-06 | |
| Opera Maine | Arts, culture and humanities | 501(c)(3) | 1995 | $719,073 | $290,969 | 2025-09 |
| Trinity Day Care Center | 501(c)(3) | 1940 | $712,358 | $34,221 | 2025-12 | |
| Friends of the St Lawrence Church | 501(c)(3) | 1997 | $702,765 | $2 million | 2024-12 | |
| Im Your Neighbor Books Welcoming Library | Arts, culture and humanities | 501(c)(3) | 2019 | $695,801 | $421,483 | 2024-12 |
| Bicycle Coalition of Maine | Recreation and sports | 501(c)(3) | 1994 | $680,511 | $229,154 | 2025-09 |
| Equality Maine Foundation | Human services | 501(c)(3) | 1998 | $678,123 | $522,439 | 2025-09 |
| Biotechnology Association of Maine | Community improvement and capacity building | 501(c)(6) | 2019 | $676,073 | $1.6 million | 2025-12 |
| Big Brothers Big Sisters of Southern Maine | 501(c)(3) | 1994 | $674,868 | $1.6 million | 2024-12 | |
| United Recovery Fund | Human services | 501(c)(3) | 2017 | $663,226 | $491,470 | 2025-12 |
| Road Runners Club of America | 501(c)(3) | 1976 | $660,718 | $196,126 | 2025-12 | |
| Maine Irish Heritage Center | Arts, culture and humanities | 501(c)(3) | 2002 | $659,038 | $823,428 | 2025-12 |
| Ruths Reusable Resources | Education | 501(c)(3) | 1998 | $649,610 | $1.1 million | 2024-12 |
| Maine Real Estate Development Association | 501(c)(6) | 1986 | $646,228 | $462,944 | 2025-06 | |
| Woodard & Curran Charitable Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2010 | $640,846 | $1.2 million | 2025-12 |
| Equality Community Center | 501(c)(3) | 2018 | $633,156 | $3 million | 2024-12 | |
| Portland School of Ballet | Arts, culture and humanities | 501(c)(3) | 1992 | $629,099 | $169,521 | 2024-07 |
| Institute for Doctoral Studies Inthe Visual Arts | Education | 501(c)(3) | 2007 | $628,158 | $2.5 million | 2025-07 |
| Africa Schoolhouse Foundation | International, foreign affairs and national security | 501(c)(3) | 2007 | $608,222 | $164,896 | 2024-12 |
| North American Bike-Share Association | Community improvement and capacity building | 501(c)(3) | 2015 | $597,177 | $468,263 | 2025-12 |
| Southern Maine Workers Center | Employment | 501(c)(3) | 2009 | $589,138 | $858,989 | 2025-06 |
| New England Veterinary Medical Association | Animal-related | 501(c)(3) | 1967 | $589,101 | $620,484 | 2024-12 |
| Ancient Accepted Scottish Rite of Free Masonry NMJ | 501(c)(10) | 1940 | $581,805 | $7.7 million | 2025-07 | |
| Democracy Maine | Civil rights, social action and advocacy | 501(c)(3) | 2011 | $575,882 | $6,192 | 2025-06 |
| Trust U/art 6 O/w/o Mary Alice Falvey Fbo Visiting Nurse Associat | 501(c)(3) | 1970 | $572,778 | $1.9 million | 2025-12 | |
| New England Arab American Organization | Human services | 501(c)(3) | 2015 | $570,453 | $434,245 | 2025-12 |
| Portland Board of Realtors | Community improvement and capacity building | 501(c)(6) | 1948 | $567,139 | $1.7 million | 2025-12 |
| Maine Writers and Publishers Alliance | 501(c)(3) | 1981 | $566,491 | $163,159 | 2024-12 | |
| International Cryptozoology Museum | Education | 501(c)(3) | 2014 | $556,094 | $1.1 million | 2024-12 |
| Ladder To the Moon Network | Public and societal benefit | 501(c)(3) | 2019 | $552,752 | $228,234 | 2025-12 |
| Cumberland County Food Security Council | Food, agriculture and nutrition | 501(c)(3) | 2018 | $544,280 | $435,111 | 2025-12 |
| W F Bisbee J G O Rourke Tte | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1999 | $542,404 | $23.4 million | 2025-12 |
| The Family Restored | Human services | 501(c)(3) | 2014 | $539,312 | $239,941 | 2025-12 |
| Fraternal Order of Eagles | 501(c)(8) | 1991 | $533,259 | $493,125 | 2025-05 | |
| Maine Jewish Museum | Arts, culture and humanities | 501(c)(3) | 2009 | $525,958 | $1.5 million | 2024-12 |
| Side X Side Inc | Education | 501(c)(3) | 2016 | $511,220 | $460,735 | 2025-06 |
| U S M Student Senate | 501(c)(3) | 1987 | $484,609 | $287,651 | 2025-06 | |
| Maine Philanthropy Center | Education | 501(c)(3) | 1996 | $479,791 | $484,548 | 2024-12 |
| Local 861 Employer Container Royalty Trust | Community improvement and capacity building | 501(c)(2) | 2020 | $466,571 | $225,801 | 2024-12 |
| Mindbridge | Science and technology | 501(c)(3) | 2018 | $454,768 | $68,304 | 2024-12 |
| Trust U/art 5 O/w/o Mary Alice Falvey Fbo American Lung Associati | 501(c)(3) | 1970 | $450,924 | $1.5 million | 2025-12 | |
| New Marblehead Seniors Housing Corporation | 501(c)(3) | 1979 | $450,764 | $891,938 | 2024-12 | |
| Maine Association of Broadcasters | 501(c)(6) | 1976 | $447,473 | $1.6 million | 2025-12 | |
| Classical Uprising | Arts, culture and humanities | 501(c)(3) | 1975 | $437,476 | $135,155 | 2025-07 |
| Saint Josephs Manor | Health care | 501(c)(3) | 2020 | $437,258 | $3.5 million | 2025-09 |
| Khmer Maine | Human services | 501(c)(3) | 2023 | $432,889 | $105,325 | 2025-06 |
| Maine Youth Camping Association | Recreation and sports | 501(c)(3) | 1990 | $428,518 | $651,237 | 2025-06 |
| Maine Citizens Against Handgun Violence | Civil rights, social action and advocacy | 501(c)(4) | 2023 | $425,706 | $215,460 | 2024-12 |
| Blue Portland Maine | Arts, culture and humanities | 501(c)(3) | 2025 | $424,411 | $23,833 | 2025-12 |
| The Girls Foundation of Tanzania | Human services | 501(c)(3) | 2010 | $417,744 | $332,944 | 2024-12 |
| Sea Change Yoga | Human services | 501(c)(3) | 2017 | $416,075 | $225,823 | 2025-12 |
| Collaborative for Bioregional Action Learning and Transformation | Environment | 501(c)(3) | 2023 | $415,790 | $314,000 | 2025-12 |
| Friends of the Kotzschmar Organ Inc | Arts, culture and humanities | 501(c)(3) | 1982 | $407,469 | $1.3 million | 2025-06 |
| Levey Day School | 501(c)(3) | 1969 | $403,322 | $94,319 | 2026-06 | |
| Greater Portland Landmarks Inc | Arts, culture and humanities | 501(c)(3) | 1967 | $385,420 | $1.7 million | 2025-06 |
| Lift All Boats | Youth development | 501(c)(3) | 2025 | $384,377 | $189,291 | 2025-12 |
| Maine Donor Alliance Fund | Education | 501(c)(3) | 2022 | $384,143 | $88,200 | 2024-12 |
| St Francis Apartments Inc | 501(c)(3) | 1946 | $379,252 | $5.3 million | 2025-06 | |
| American Civil Liberties Union of Maine | 501(c)(4) | 1970 | $374,326 | $990,491 | 2025-03 | |
| Mayo Street Arts | Human services | 501(c)(3) | 2010 | $368,102 | $573,303 | 2025-12 |
| Squirrel Island Preservation Foundation | Environment | 501(c)(3) | 1988 | $357,753 | $10.9 million | 2025-12 |
| Maine Donor Alliance | Civil rights, social action and advocacy | 501(c)(4) | 2022 | $350,928 | $101,923 | 2024-12 |
| Maine Youth Court | Crime and legal-related | 501(c)(3) | 2022 | $340,072 | $349,668 | 2025-06 |
| Portland Media Center | 501(c)(3) | 1985 | $339,738 | $64,529 | 2025-06 | |
| Institute for Family-Owned Business | Community improvement and capacity building | 501(c)(3) | 2008 | $335,031 | $199,261 | 2025-12 |
| Abba A Womens Resource Center | Arts, culture and humanities | 501(c)(3) | 1996 | $334,922 | $833,580 | 2025-12 |
| Birth Roots Inc | Health care | 501(c)(3) | 2004 | $334,190 | $421,888 | 2025-12 |
| Five Graham St | Housing and shelter | 501(c)(3) | 2000 | $333,974 | $1.8 million | 2024-12 |
| Mountains To Shore Board of Realtor | 501(c)(6) | 1979 | $328,989 | $559,316 | 2025-12 | |
| Coalition for American Public Diplomacy and Leadership | International, foreign affairs and national security | 501(c)(3) | 2025 | $323,364 | $82,375 | 2025-12 |
| Ancient Accepted Scottish Rite of Free Masonry NMJ | 501(c)(10) | 1940 | $322,202 | $4.5 million | 2025-07 | |
| Speak About It | Arts, culture and humanities | 501(c)(3) | 2013 | $320,336 | $25,567 | 2024-06 |
| Yellow Tulip Project | Mental health and crisis intervention | 501(c)(3) | 2017 | $319,430 | $657,063 | 2025-12 |
| Maine Boys To Men | Youth development | 501(c)(3) | 2004 | $313,563 | $141,196 | 2025-12 |
| International Association of Fire Fighters | 501(c)(5) | 1940 | $312,543 | $180,080 | 2023-12 | |
| South Windham Housing Corporation | Housing and shelter | 501(c)(3) | 2005 | $303,132 | $2.3 million | 2024-12 |
| Bomazeen Land Trust | Arts, culture and humanities | 501(c)(3) | 2021 | $297,541 | $1.1 million | 2024-12 |
| Maine Affordable Housing Coalition | Civil rights, social action and advocacy | 501(c)(4) | 2024 | $291,018 | $237,140 | 2025-06 |
| Native Future | International, foreign affairs and national security | 501(c)(3) | 2012 | $286,586 | $231,388 | 2024-12 |
| Pleasant Street Housing Inc | Housing and shelter | 501(c)(3) | 1987 | $283,651 | $547,166 | 2025-06 |
| Portland Chevra Kadisha A Maine Nonprofit Corp - T13-B | Religion-related | 501(c)(3) | 1943 | $279,220 | $1.1 million | 2025-11 |
| New Marblehead North Housing Corporation | 501(c)(3) | 1985 | $278,244 | $1.1 million | 2024-12 | |
| Ila Local 861 - Employer Health & | Mutual and membership benefit | 501(c)(9) | 2000 | $268,037 | $109,182 | 2024-12 |
| Gray Senior Housing Inc | 501(c)(3) | 1975 | $263,080 | $441,206 | 2024-12 | |
| Roncalli Apartments Inc | 501(c)(3) | 1946 | $261,489 | $3.1 million | 2025-06 | |
| Climatework Maine | Health care | 501(c)(3) | 2011 | $256,081 | $60,928 | 2025-12 |
| Noble Housing Corporation | Housing and shelter | 501(c)(3) | 1993 | $252,301 | $672,473 | 2024-12 |
| Manchester Housing for the Elderly | 501(c)(3) | 1981 | $252,259 | $701,506 | 2024-12 | |
| Maine Self Insurance Guaranty Association | 501(c)(6) | 1984 | $250,594 | $4.6 million | 2025-12 | |
| Portland Wheelers | Civil rights, social action and advocacy | 501(c)(3) | 2015 | $250,403 | $222,041 | 2025-12 |
| Jordan Bay Place | Housing and shelter | 501(c)(3) | 2000 | $249,674 | $1.1 million | 2024-12 |
| Portland Chamber Music Festival | Arts, culture and humanities | 501(c)(3) | 1994 | $248,233 | $141,767 | 2025-12 |
| Trust U-Art 7 Owo Mary A Falvey Bo Hawthorne House & Ecumenical Center H | 501(c)(3) | 1970 | $246,762 | $853,897 | 2025-12 | |
| Edgecomb Woods | Housing and shelter | 501(c)(3) | 2001 | $243,350 | $1.6 million | 2024-12 |
| Illustration Institute | Arts, culture and humanities | 501(c)(3) | 2016 | $236,216 | $1.3 million | 2025-12 |
| Creative Portland Corporation | Community improvement and capacity building | 501(c)(3) | 2010 | $235,303 | $233,154 | 2025-06 |
| Siddhartha School Partnership | Education | 501(c)(3) | 2006 | $233,380 | $212,460 | 2025-12 |
| Portland Theater Festival | Arts, culture and humanities | 501(c)(3) | 2024 | $232,269 | $60,446 | 2025-12 |
| Maine Jewish Film Festival | Arts, culture and humanities | 501(c)(3) | 1999 | $230,901 | $203,463 | 2025-05 |
| Nathan and Henry B Cleaves Law Library | Education | 501(c)(3) | 1997 | $228,724 | $3.6 million | 2024-12 |
| Atlantic Black Box | Arts, culture and humanities | 501(c)(3) | 2023 | $228,481 | $160,834 | 2024-12 |
| Maine Muslim Community Center | Religion-related | 501(c)(3) | 2010 | $228,244 | $83,441 | 2025-12 |
| Journey House Recovery | Human services | 501(c)(3) | 2018 | $225,183 | $34,999 | 2023-12 |
| Local Union No 349 of the United Brotherhood of Carpenters and Join | Employment | 501(c)(5) | 2019 | $222,099 | $139,356 | 2025-06 |
| Choral Art Society | Arts, culture and humanities | 501(c)(3) | 1974 | $221,929 | $274,694 | 2025-06 |
| A Company of Girls | Arts, culture and humanities | 501(c)(3) | 2006 | $219,468 | $226,242 | 2025-06 |
| National Association of Letter Carriers | 501(c)(5) | 1955 | $216,965 | $329,584 | 2025-12 | |
| Institute for Financial Literacy Inc | Human services | 501(c)(3) | 2002 | $215,625 | $447,666 | 2025-12 |
| Moving Forward for Maine Reentry Sisters Corporation | Crime and legal-related | 501(c)(3) | 2024 | $209,326 | $179,915 | 2025-12 |
| National Society of Colonial Dames | Arts, culture and humanities | 501(c)(3) | 1969 | $207,935 | $2.9 million | 2026-04 |
| Friends of River Valley | Community improvement and capacity building | 501(c)(3) | 2023 | $200,606 | $691,147 | 2025-12 |
| Friends of Portland Adult Education | Education | 501(c)(3) | 2012 | $199,506 | $508,866 | 2024-12 |
| Portland Area Youth Soccer Association | Recreation and sports | 501(c)(3) | 1998 | $198,279 | $82,639 | 2025-12 |
| Portland Olympic Club Incorporated | Recreation and sports | 501(c)(3) | 2002 | $197,804 | $208,222 | 2025-12 |
| Maine Veterinary Medical Association Inc | 501(c)(6) | 1995 | $196,339 | $541,835 | 2024-12 | |
| Portland Youth Theater | Arts, culture and humanities | 501(c)(3) | 2016 | $193,180 | $26,942 | 2024-12 |
| Maine Association of Conservation Districts | Environment | 501(c)(3) | 1993 | $192,385 | $104,632 | 2025-12 |
| Grime Studios | Arts, culture and humanities | 501(c)(3) | 2016 | $192,048 | $425,822 | 2024-12 |
| Maine Real Estate Managers Association | 501(c)(6) | 1996 | $190,488 | $181,877 | 2024-12 | |
| Chaplaincy Institute of Maine | Education | 501(c)(3) | 2003 | $189,961 | $107,845 | 2023-12 |
| Affirming Behavioral Health | Mental health and crisis intervention | 501(c)(3) | 2023 | $189,912 | $164,724 | 2025-12 |
| New England Suzuki Institute | Arts, culture and humanities | 501(c)(3) | 2007 | $184,031 | $89,736 | 2025-09 |
| Heartfelt School | Education | 501(c)(3) | 2014 | $181,585 | $20,781 | 2024-12 |
| Grateful Dog Animal Rescue Inc | Animal-related | 501(c)(3) | 2017 | $181,296 | $8,907 | 2025-12 |
| Tate House Museum | Arts, culture and humanities | 501(c)(3) | 2004 | $170,217 | $388,117 | 2024-12 |
| Maine Mountain Collaborative | Environment | 501(c)(3) | 2017 | $166,384 | $184,162 | 2024-12 |
| Tempoart Portland | Arts, culture and humanities | 501(c)(3) | 2015 | $164,442 | $70,211 | 2025-09 |
| Rotary International | 501(c)(4) | 1942 | $161,293 | $142,845 | 2025-06 | |
| Masonic Trustees of Portland | Community improvement and capacity building | 501(c)(2) | 2014 | $157,644 | $931,378 | 2024-12 |
| Maine Handgun Violence Education Foundation | Crime and legal-related | 501(c)(3) | 2023 | $154,862 | $142,279 | 2024-12 |
| Alpha Legal Foundation | Civil rights, social action and advocacy | 501(c)(3) | 2022 | $151,565 | $124,177 | 2024-12 |
| Maine Appalachian Trail Land Trust | Environment | 501(c)(3) | 2002 | $151,147 | $1.8 million | 2025-03 |
| Green Tape Foundation | Health care | 501(c)(3) | 2024 | $150,000 | $127,160 | 2024-12 |
| United 4 Child Care | Education | 501(c)(3) | 2024 | $150,000 | $132,819 | 2025-06 |
| Skutik River Restoration Trust | Environment | 501(c)(3) | 2025 | $149,102 | $359,471 | 2025-12 |
| Visiting Board of the Childrens Hospital | 501(c)(3) | 1920 | $148,206 | $814,908 | 2025-09 | |
| World of Change Inc | Human services | 501(c)(3) | 2026 | $147,295 | $52,571 | 2025-10 |
| Aspire for Humanity Initiatives | Community improvement and capacity building | 501(c)(3) | 2020 | $144,952 | $27,418 | 2024-12 |
| John Chabot Educational Foundation | 501(c)(3) | 1992 | $144,767 | $2.1 million | 2025-12 | |
| Childrens Initiative Inc | International, foreign affairs and national security | 501(c)(3) | 2006 | $141,799 | $225,552 | 2025-06 |
| Healthy Homeworks | Health care | 501(c)(3) | 2016 | $141,171 | $237,556 | 2025-12 |
| Still A Good Cause Thrift Shop | Human services | 501(c)(3) | 2016 | $138,879 | $29,856 | 2025-12 |
| Pat Moody Foundation | Youth development | 501(c)(3) | 2026 | $138,080 | $119,172 | 2025-12 |
| Maine Youth Camp Association | Youth development | 501(c)(4) | 2009 | $137,277 | $163,308 | 2025-06 |
| Friends of Feral Felines | Animal-related | 501(c)(3) | 1998 | $134,022 | $128,423 | 2024-12 |
| Amalgamated Transit Union | 501(c)(5) | 1940 | $133,882 | $20,765 | 2025-12 | |
| World Affairs Council of Maine | International, foreign affairs and national security | 501(c)(3) | 1980 | $133,614 | $45,920 | 2025-06 |
| International Alliance Theatrical Stage Employees & Moving Picture | 501(c)(5) | 1967 | $132,641 | $76,407 | 2025-12 | |
| The Cromwell Center for Disabilities Awareness | Mental health and crisis intervention | 501(c)(3) | 2003 | $130,735 | $319,456 | 2025-06 |
| Kenya Community Education and Action Inc | International, foreign affairs and national security | 501(c)(3) | 2015 | $126,973 | $71,430 | 2024-12 |
| B C and T Local 334 Retiree Health Plan Insurance Trust Nissen Div | Mutual and membership benefit | 501(c)(9) | 2002 | $126,685 | $1.2 million | 2026-05 |
| Little League Baseball Inc | 501(c)(3) | 1967 | $126,192 | $274,635 | 2025-09 | |
| Deering Memorial Post 6859 VFW Inc | 501(c)(19) | 1972 | $125,396 | $40,299 | 2024-12 | |
| Art Play Inc | 501(c)(3) | 1982 | $124,019 | $47,172 | 2025-05 | |
| Alcoholics Annonymous Central Service Office | Mental health and crisis intervention | 501(c)(4) | 2014 | $121,709 | $96,055 | 2024-12 |
| Florence House Housing Corporation | Housing and shelter | 501(c)(3) | 2008 | $117,609 | $1.8 million | 2024-12 |
| Summit Project | Arts, culture and humanities | 501(c)(3) | 2014 | $113,994 | $88,326 | 2025-12 |
| Mahc Inc | 501(c)(2) | 1994 | $113,886 | $1.5 million | 2025-06 | |
| Pride Portland | Arts, culture and humanities | 501(c)(3) | 2020 | $112,416 | $134,625 | 2025-07 |
| Growing Routes | Youth development | 501(c)(3) | 2019 | $108,809 | $45,433 | 2025-12 |
| Speedwell Projects | Arts, culture and humanities | 501(c)(3) | 2021 | $107,218 | $14,295 | 2025-12 |
| Bach Virtuosi Festival Maine | Arts, culture and humanities | 501(c)(3) | 2024 | $106,280 | $5,676 | 2025-08 |
| Tor Gul Inc | 501(c)(3) | 1989 | $103,602 | $73,575 | 2024-12 | |
| 240 Strings | Arts, culture and humanities | 501(c)(3) | 2016 | $102,331 | $40,810 | 2025-06 |
| Architalx | Arts, culture and humanities | 501(c)(3) | 1998 | $101,337 | $125,721 | 2025-08 |
| Portland Childrens Dyslexia Foundation | Youth development | 501(c)(3) | 2013 | $100,872 | $267,111 | 2024-12 |
| Angiosarcoma Awareness Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2011 | $99,504 | $554,814 | 2025-07 |
| The Portland Club | Arts, culture and humanities | 501(c)(3) | 2024 | $98,458 | $506,912 | 2025-12 |
| Portland Youth Dance | Arts, culture and humanities | 501(c)(3) | 2002 | $97,799 | $52,525 | 2024-12 |
| Moving Maine Network | Human services | 501(c)(3) | 2025 | $96,084 | $11,804 | 2025-12 |
| Maine Project for Fine Art Conservation | Arts, culture and humanities | 501(c)(3) | 2011 | $96,042 | $1,566 | 2025-12 |
| Center for Ethics in Action | Arts, culture and humanities | 501(c)(3) | 2002 | $95,353 | $15,661 | 2024-12 |
| Maine Senior Games | Recreation and sports | 501(c)(3) | 2021 | $93,960 | $71,264 | 2025-12 |
| Maine Association of Criminal Defense Lawyers | 501(c)(6) | 1995 | $92,425 | $107,046 | 2024-12 | |
| Youth in Action Incorporated | 501(c)(3) | 1980 | $91,041 | $305,311 | 2025-12 | |
| Junior League of Portland Maine Inc | Community improvement and capacity building | 501(c)(3) | 1951 | $90,943 | $379,209 | 2025-05 |
| Safe Space Radio | Arts, culture and humanities | 501(c)(3) | 2015 | $88,733 | $1 | 2023-06 |
| Third Place Inc | Community improvement and capacity building | 501(c)(3) | 2021 | $86,655 | $57,164 | 2025-12 |
| Maine Womens Conference Inc | Education | 501(c)(3) | 2017 | $86,439 | $64,527 | 2025-12 |
| Maine Angels | Community improvement and capacity building | 501(c)(6) | 2019 | $85,106 | $81,983 | 2025-12 |
| Chronicles of Chogyam Trungpa Rinpoche | Arts, culture and humanities | 501(c)(3) | 2020 | $85,031 | $18,599 | 2025-12 |
| Rocky Coast Housing Inc | Mental health and crisis intervention | 501(c)(3) | 2005 | $81,834 | $750,509 | 2025-06 |
| Portland Police Benevolent Association | 501(c)(5) | 1976 | $79,818 | $74,169 | 2025-05 | |
| Society of Southern Maine Craftsmen | 501(c)(3) | 2025 | $78,646 | $70,995 | 2025-12 | |
| Maine Telecommunications Users Group | Community improvement and capacity building | 501(c)(6) | 2000 | $72,372 | $24,678 | 2024-07 |
| Exemplary Forestry Management Inc | Environment | 501(c)(3) | 2023 | $71,800 | $74,631 | 2024-12 |
| Agape Inc | Arts, culture and humanities | 501(c)(3) | 1997 | $70,846 | $29,852 | 2025-12 |
| Mainely Character | Education | 501(c)(3) | 2001 | $70,027 | $104,138 | 2025-12 |
| American Federation of Labor & Congress of Industrial Orgs | 501(c)(5) | 1956 | $68,128 | $122,314 | 2025-12 | |
| Muskie Fund for Legal Services | Crime and legal-related | 501(c)(3) | 1996 | $67,722 | $19,327 | 2024-12 |
| New England Masters Study Club | Health care | 501(c)(3) | 1996 | $67,006 | $64,845 | 2025-12 |
| Eastern Maine Conservation Initiative | Animal-related | 501(c)(3) | 1996 | $66,899 | $592,722 | 2024-12 |
| Portland Junior Dogs | Recreation and sports | 501(c)(3) | 2024 | $66,828 | $23,482 | 2025-12 |
| Falmouth Rod and Gun Club | Recreation and sports | 501(c)(7) | 2000 | $65,868 | $338,392 | 2025-12 |
| Oceanside Conservation Trust | 501(c)(3) | 1982 | $63,581 | $2.5 million | 2025-12 | |
| Harbor Lights Housing | Housing and shelter | 501(c)(3) | 2003 | $62,858 | $406,245 | 2025-09 |
| Vida En Shalom | Religion-related | 501(c)(3) | 2016 | $62,363 | $18,561 | 2025-12 |
| Ancient Free & Accepted Masons of Maine | 501(c)(10) | 1941 | $62,216 | $1.5 million | 2024-11 | |
| Ellies Legacy Animal Foundation | Animal-related | 501(c)(3) | 2020 | $61,638 | $23,411 | 2025-12 |
| Portland Society for Architecture | Arts, culture and humanities | 501(c)(3) | 2011 | $61,259 | $40,847 | 2025-12 |
| Friends of Congress Square Park | Community improvement and capacity building | 501(c)(3) | 2015 | $60,202 | $150,684 | 2025-12 |
| Community Montessori of Greater Portland | Human services | 501(c)(3) | 2022 | $59,717 | $157,305 | 2025-07 |
| Project Feed | 501(c)(3) | 1978 | $56,042 | $134,746 | 2026-02 | |
| Bakery Confectionery Tobacco Workers and Grain Millers Intl Uni | 501(c)(8) | 1948 | $54,796 | $196,765 | 2025-12 | |
| Lymetv | Diseases, disorders and medical disciplines | 501(c)(3) | 2019 | $53,582 | $66,004 | 2025-12 |
| Bakery Photographic Collective | Arts, culture and humanities | 501(c)(3) | 2017 | $52,440 | $67,744 | 2025-12 |
| St Michaels Home | 501(c)(3) | 1946 | $50,635 | $194,070 | 2025-09 | |
| Winona Camps Foundation | Recreation and sports | 501(c)(3) | 2025 | $50,500 | $15,870 | 2025-12 |
| Telesis Housing Corporation | 501(c)(3) | 1994 | $50,076 | $356,043 | 2024-12 | |
| Childrens Nursery School | 501(c)(3) | 1975 | $49,908 | $67,649 | 2025-06 | |
| Equality Maine | Civil rights, social action and advocacy | 501(c)(4) | 2000 | $48,276 | $82,856 | 2025-09 |
| Maine Roller Derby | Recreation and sports | 501(c)(3) | 2015 | $46,788 | $45,634 | 2025-12 |
| Portland Rotary Charitable Fund | 501(c)(3) | 1985 | $46,159 | $445,063 | 2025-06 | |
| Adios Ministries | International, foreign affairs and national security | 501(c)(3) | 2008 | $38,678 | $5,873 | 2024-12 |
| Lark Society for Chamber Music | 501(c)(3) | 1980 | $37,971 | $34,183 | 2025-06 | |
| Longfellow Elementary School Parent Teacher Organization | Education | 501(c)(3) | 2006 | $33,228 | $18,981 | 2025-08 |
| George Winfield Treat Memorial Library Foundation | 501(c)(3) | 1955 | $32,529 | $397,254 | 2025-12 | |
| Maine Composites Alliance | Education | 501(c)(3) | 1999 | $29,626 | $85,186 | 2025-12 |
| Portland Independent Business & Community Alliance | Community improvement and capacity building | 501(c)(3) | 2024 | $29,059 | $22,816 | 2025-06 |
| Maine Womans Christian Temperance | 501(c)(4) | 1929 | $27,635 | $351,454 | 2026-08 | |
| Portland Velo Club | Recreation and sports | 501(c)(3) | 2005 | $22,650 | $73,190 | 2025-12 |
| Wex Cares Foundation Inc | Human services | 501(c)(3) | 2018 | $21,789 | $76,858 | 2025-12 |
| Portland Housing Services Corporation | Housing and shelter | 501(c)(3) | 2010 | $21,180 | $210,187 | 2025-06 |
| Mary Ann Briggs Trust | 501(c)(3) | 2023 | $21,088 | $390,774 | 2025-12 | |
| The Committee To Restore the Abyssinian Meetinghouse | Arts, culture and humanities | 501(c)(3) | 1997 | $17,037 | $291,478 | 2023-12 |
| Foundation for Movement Intelligence | Health care | 501(c)(3) | 2008 | $16,819 | $126,495 | 2025-06 |
| Maine Pellet Fuels Association | Community improvement and capacity building | 501(c)(6) | 2010 | $15,489 | $94,757 | 2025-09 |
| Auber Memorial Educational Trust | 501(c)(3) | 1995 | $11,450 | $213,621 | 2025-12 | |
| DHB Scholarships Inc | Education | 501(c)(3) | 2023 | $9,955 | $36,508 | 2023-12 |
| PHT Inc | Youth development | 501(c)(3) | 2025 | $1,540 | $3,268 | 2021-12 |
| Longfellow Chorus | Arts, culture and humanities | 501(c)(3) | 2008 | $500 | $146 | 2025-08 |
| M H S Inc | 501(c)(3) | 1993 | $10 | $331,785 | 2025-09 | |
| Greater Portland Economic Development Corporation | Community improvement and capacity building | 501(c)(6) | 2012 | $6 | $13,662 | 2025-06 |
| 32 Bar Blues Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $8,130 | 2025-12 | |
| 3levelsorg | Education | 501(c)(3) | 2012 | $0 | $0 | 2025-06 |
| 82parris | Arts, culture and humanities | 501(c)(3) | 2025 | |||
| A Bright Future | Human services | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| A C E Mentoring of Maine Inc | Education | 501(c)(3) | 2014 | $0 | $0 | 2025-06 |
| Acorn Productions | Arts, culture and humanities | 501(c)(3) | 1999 | $0 | $0 | 2025-08 |
| Advent Christian Church of Portland | 501(c)(3) | 1958 | ||||
| Advertising Club of Greater Portland | 501(c)(6) | 1984 | $0 | $0 | 2025-06 | |
| After Party Inc | Environment | 501(c)(3) | 2026 | $0 | $0 | 2024-12 |
| Al Badoo Community Association of Maine | Human services | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Alan A Bird Trust for the Congregational Church of Rockland | 501(c)(3) | 1976 | $630,640 | 2025-12 | ||
| Albert B Glickman Family Foundation | 501(c)(3) | 1993 | $19.3 million | 2024-12 | ||
| Aldermere Foundation | 501(c)(3) | 1978 | $4.8 million | 2025-12 | ||
| Alex Tanous Foundation for Scientific Research | 501(c)(3) | 1993 | $548,982 | 2024-12 | ||
| All Inclusive | Education | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Altrusa International Foundation Inc | Education | 501(c)(3) | 1985 | $0 | $0 | 2026-05 |
| Altrusa International Inc | 501(c)(4) | 1944 | $0 | $0 | 2026-05 | |
| Amanda C Rowe School Parent Teacher Organization | Education | 501(c)(3) | 2013 | $0 | $0 | 2025-06 |
| America-Mexico Foundation Inc | 501(c)(3) | 1978 | $0 | $0 | 2023-12 | |
| American Academy of Matrimonial Lawyers | 501(c)(6) | 1966 | $0 | $0 | 2025-12 | |
| American Families for Vaccines | Health care | 501(c)(3) | 2025 | |||
| American Legion Auxiliary Harold T Andrews Unit No 17 Dept of Maine | Public and societal benefit | 501(c)(19) | 2012 | $0 | $0 | 2026-05 |
| American Rose Trials for Sustainability | Science and technology | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| American Society for Clinical Laboratory Science | 501(c)(6) | 1970 | $0 | $0 | 2025-12 | |
| Amvets | Mutual and membership benefit | 501(c)(19) | 1945 | $0 | $0 | 2025-08 |
| Ancient Accepted Scottish Rite of Free Masonary NMJ | 501(c)(10) | 1982 | $0 | $0 | 2024-07 | |
| Ancient Free & Accepted Masons of Maine | 501(c)(10) | 1941 | $0 | $0 | 2023-12 | |
| Androscoggin Banks Mainstreet Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1997 | $710,442 | 2025-12 | |
| Anita C Montgomery Trust | 501(c)(92) | $402,360 | 2025-12 | |||
| Anne Randolph Henry Charitable Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2012 | $3.9 million | 2025-12 | |
| Anne Whiteman Richardson Residuary Charitable Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1998 | $1.2 million | 2025-12 | |
| Aquatic Center of Maine | Recreation and sports | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Armenian Cultural Association of Maine | Arts, culture and humanities | 501(c)(3) | 2004 | $0 | $0 | 2024-12 |
| Aroostook County Association of Independent Insurance Agent | 501(c)(6) | 1996 | $0 | $0 | 2026-05 | |
| Attendant Services Inc | Human services | 501(c)(3) | 1990 | $0 | $3.3 million | 2025-06 |
| Azande Community in the United Stat Es of America | Human services | 501(c)(3) | 2025 | |||
| BMW Car Club of America Inc | 501(c)(7) | 2007 | $0 | $0 | 2025-12 | |
| Back Bay Lacrosse Inc | Recreation and sports | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Back Cove Neighborhood Association | Community improvement and capacity building | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Bangor Theological Seminary | Religion-related | 501(c)(3) | 2015 | $22.4 million | 2025-06 | |
| Barbara Thorndike Wiggin Fund | 501(c)(3) | 1981 | $696,996 | 2025-12 | ||
| Barrett Made Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2020 | $98 | 2024-12 | |
| Baxter Academy Real Estate Corp | Education | 501(c)(3) | 2017 | $0 | $3 million | 2025-06 |
| Bayside Arts | Arts, culture and humanities | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Bayside Neighborhood Association | Community improvement and capacity building | 501(c)(3) | 2000 | $0 | $0 | 2026-06 |
| Beaman Foundation | 501(c)(3) | 1961 | $535,803 | 2024-12 | ||
| Beau Jest Moving Theatre Corporation | Arts, culture and humanities | 501(c)(3) | 1987 | $0 | $0 | 2025-12 |
| Begin Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2024 | $313,372 | 2025-12 | |
| Beloved Community Fund | Religion-related | 501(c)(3) | 1999 | |||
| Bendsi Community Association | Arts, culture and humanities | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Berg Jones & Sarvis | Arts, culture and humanities | 501(c)(3) | 1993 | $0 | $0 | 2025-12 |
| Biobased Maine | Community improvement and capacity building | 501(c)(6) | 2011 | $0 | $0 | 2025-12 |
| Biomass Thermal Energy Council | Community improvement and capacity building | 501(c)(6) | 2010 | $0 | $0 | 2025-12 |
| Bishop of the Protestant Episcopal Church in the Dioceses of Maine | 501(c)(3) | 1940 | ||||
| Boys & Girls Clubs of America | 501(c)(4) | 1999 | ||||
| Brickman Gross Family Foundation | 501(c)(3) | 1994 | $1.1 million | 2024-12 | ||
| Bridge and Beyond | Human services | 501(c)(3) | 2023 | $0 | $0 | 2023-12 |
| Bright Stars USA | Human services | 501(c)(3) | 2021 | $0 | $0 | 2023-12 |
| Business Pants Corporate Theater | Arts, culture and humanities | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| C Wilkes Babb Trust Uw Key BK of Southwrn Me | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2001 | $486,088 | 2025-12 | |
| Cafe Review Foundation | Arts, culture and humanities | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Camber Inc | Housing and shelter | 501(c)(3) | 2025 | $18,629 | 2024-12 | |
| Cambodian Arts and Scholarship Foundation | Arts, culture and humanities | 501(c)(3) | 2001 | $0 | $0 | 2025-12 |
| Caroline S Wooster Trust | Education | 501(c)(3) | 2020 | $522,235 | 2025-12 | |
| Casco Bay Bicycle Club | Community improvement and capacity building | 501(c)(4) | 2014 | $0 | $0 | 2025-12 |
| Casco Bay Church of Christ | Religion-related | 501(c)(3) | 1964 | 2013-12 | ||
| Casco Bay Concert Band | Arts, culture and humanities | 501(c)(3) | 1996 | $0 | $0 | 2025-06 |
| Casco Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2014 | $799,214 | 2025-12 | |
| Cathedral Church of St Luke | 501(c)(3) | 1940 | ||||
| Cathedral of the Immaculate Conception | 501(c)(3) | 1946 | ||||
| Cedars Foundation Inc | Human services | 501(c)(3) | 2008 | $0 | $1 | 2025-04 |
| Center for Cultural Exchange | Arts, culture and humanities | 501(c)(3) | 1983 | $0 | $0 | 2025-12 |
| Center for Ecological & Cultural Living Arts | Arts, culture and humanities | 501(c)(3) | 2018 | $0 | $0 | 2024-12 |
| Center for Indigent Defense Studies | Human services | 501(c)(3) | 2024 | |||
| Center for Regional Prosperity | Human services | 501(c)(3) | 2019 | $0 | $176,000 | 2025-06 |
| Centerpoint Church of Portland Inc | Religion-related | 501(c)(3) | 2016 | |||
| Charles G Strater Memorial Trust Fbo Ogunquit Memorial Library | 501(c)(92) | 1970 | $847,721 | 2024-12 | ||
| Cheverus High School | 501(c)(3) | 1946 | 2018-06 | |||
| Chinese and American Friendship Association of Maine | Arts, culture and humanities | 501(c)(3) | 2003 | $0 | $0 | 2025-12 |
| Christ Church of Portland | 501(c)(3) | 1975 | ||||
| Christ the Redeemer Presbyterian Church | 501(c)(3) | 1974 | ||||
| Citizens for Farm Animal Protection | Animal-related | 501(c)(4) | 2018 | $0 | $0 | 2025-06 |
| Clarence A Tucker & Gladys C Tucker Cherryfield Childrens Trust 2001 | Education | 501(c)(3) | 2004 | $71,813 | 2025-12 | |
| Coastal Community Wesleyan Church | 501(c)(3) | 1970 | ||||
| Community Conservation Initiative | Environment | 501(c)(3) | 2022 | $0 | $0 | 2023-12 |
| Communityz Recordz | Arts, culture and humanities | 501(c)(3) | 2021 | $0 | $0 | 2024-12 |
| Congolese Community of Maine | Human services | 501(c)(3) | 2026 | |||
| Congregation Shaarey Tphiloh | 501(c)(3) | 2012 | ||||
| Cornerstone Christian Ministries | 501(c)(3) | 1992 | ||||
| Cornerstone Masonic Corporation | 501(c)(2) | 1951 | $0 | $0 | 2023-12 | |
| Country Dance & Song Society Inc | 501(c)(3) | 1993 | $0 | $0 | 2024-12 | |
| Crowbait Club | Arts, culture and humanities | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Cumberland County Volunteers in Police Service Inc | Public safety, disaster preparedness and relief | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| Cumberland Cultural Center | Community improvement and capacity building | 501(c)(3) | 2026 | |||
| Cushings Island Conservation Corp | 501(c)(3) | 1982 | $0 | $0 | 2025-12 | |
| D1L | Employment | 501(c)(3) | 2026 | |||
| DBH Management II Inc | 501(c)(3) | 1946 | ||||
| Daisy H Friedlander Charitable Foundation | 501(c)(3) | 1989 | $41,861 | 2025-12 | ||
| Daley Foundation | Crime and legal-related | 501(c)(3) | 2022 | $0 | $0 | 2023-12 |
| Daniel Raymond Nickerson Foundation Inc | 501(c)(3) | 1988 | $1.4 million | 2025-12 | ||
| Deering Center Neighborhood Association | Environment | 501(c)(3) | 2010 | $0 | $0 | 2025-12 |
| Defend Our Health Action | Environment | 501(c)(4) | 2014 | $0 | $0 | 2025-12 |
| Design Inquiry | Arts, culture and humanities | 501(c)(3) | 2007 | $0 | $0 | 2025-07 |
| Divine Mercy Hermitage | 501(c)(3) | 1946 | ||||
| Downeast Chapter of the Association of Legal Administrators | 501(c)(6) | 1993 | $0 | $0 | 2026-03 |
By cause in Portland, ME
- Arts, culture and humanities 115
- Education 79
- Philanthropy, voluntarism and grantmaking foundations 73
- Human services 68
- Community improvement and capacity building 55
- Recreation and sports 42
- Housing and shelter 32
- Health care 29
- Environment 29
- Religion-related 26
- Youth development 20
- International, foreign affairs and national security 19
- Animal-related 13
- Mental health and crisis intervention 12
- Civil rights, social action and advocacy 12
- Crime and legal-related 11
- Public and societal benefit 10
- Food, agriculture and nutrition 10
- Employment 9
- Science and technology 7
- Mutual and membership benefit 6
- Diseases, disorders and medical disciplines 3
Nonprofits in every city of the state
Read from the IRS Exempt Organizations Business Master File, updated by the IRS on October 24, 2026 and rebuilt here every morning. Revenue and assets are from each organization's latest filing as the IRS lists it; the IRS record is the official one. Organizations only: no people are named on these pages.