Data / Nonprofits / New Hampshire / Portsmouth
Nonprofits in Portsmouth, NH: 305 registered with the IRS
305 nonprofits are registered with the IRS in Portsmouth, NH, 256 of them 501(c)(3) charities; the 156 that report revenue took in $313.2 million. The largest by revenue: International Association of Privacy Professionals ($74.7 million), Seacoast Mental Health Center Inc ($26.4 million), Global Seafood Alliance Inc ($19.6 million). Most common causes: philanthropy, voluntarism and grantmaking foundations (39), arts, culture and humanities (35), human services (28).
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Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| International Association of Privacy Professionals | Community improvement and capacity building | 501(c)(6) | 2001 | $74.7 million | $138 million | 2025-12 |
| Seacoast Mental Health Center Inc | Mental health and crisis intervention | 501(c)(3) | 1963 | $26.4 million | $18.8 million | 2025-06 |
| Global Seafood Alliance Inc | Community improvement and capacity building | 501(c)(6) | 1999 | $19.6 million | $16.4 million | 2024-12 |
| One Sky Community Services Inc | Human services | 501(c)(3) | 1984 | $18.4 million | $7.1 million | 2025-06 |
| Downeast Community Partners Inc | Human services | 501(c)(3) | 1971 | $14.3 million | $13.8 million | 2023-09 |
| Friends of the Music Hall | Arts, culture and humanities | 501(c)(3) | 1987 | $12.7 million | $21.5 million | 2025-06 |
| Granite State Economic Development Corp | 501(c)(4) | 1989 | $11.2 million | $27.8 million | 2025-09 | |
| Gather | Human services | 501(c)(3) | 1943 | $10.5 million | $13.6 million | 2025-06 |
| Wentworth Senior Living | 501(c)(3) | 1943 | $10 million | $20.1 million | 2025-12 | |
| Northeastern Regional Association of Coastal Ocean Observation Syste | Science and technology | 501(c)(3) | 2010 | $7.4 million | $2.5 million | 2025-09 |
| Great Bay Kids | Human services | 501(c)(3) | 1968 | $7.1 million | $12.9 million | 2025-06 |
| Birchtree | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2001 | $6.8 million | $7.4 million | 2025-06 |
| Strawbery Banke Museum | Arts, culture and humanities | 501(c)(3) | 1967 | $6 million | $25.3 million | 2025-03 |
| Star Island Corporation | Community improvement and capacity building | 501(c)(3) | 1947 | $5.1 million | $14.7 million | 2025-12 |
| Cross Roads House Inc | Housing and shelter | 501(c)(3) | 1986 | $4.7 million | $12.4 million | 2025-06 |
| Seacoast Community School | Human services | 501(c)(3) | 1968 | $4.7 million | $7.6 million | 2025-06 |
| Hope for Tomorrow Foundation | Education | 501(c)(3) | 2017 | $3.8 million | $16.2 million | 2025-06 |
| Haven-Violence Prevention and Support Services | Human services | 501(c)(3) | 1979 | $3.6 million | $3.8 million | 2025-06 |
| Community Health Access Network | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1998 | $3.5 million | $1.4 million | 2025-09 |
| Chase Home | Human services | 501(c)(3) | 2021 | $3 million | $584,928 | 2025-06 |
| Portsmouth Music and Arts Center Inc | Arts, culture and humanities | 501(c)(3) | 2005 | $2.8 million | $2.7 million | 2025-08 |
| National Academy of Sciences Retire Welfare Benefit Plan Trust | Science and technology | 501(c)(3) | 1999 | $2.7 million | $69.4 million | 2024-12 |
| Greengard Center for Autisim | Diseases, disorders and medical disciplines | 501(c)(3) | 2015 | $2.4 million | $4.3 million | 2024-12 |
| Seacoast Ski Club | 501(c)(7) | 1990 | $2.3 million | $1.1 million | 2026-04 | |
| Seacoast Repertory Theatre | Arts, culture and humanities | 501(c)(3) | 1994 | $2.2 million | $1.5 million | 2025-12 |
| Education for All Children | International, foreign affairs and national security | 501(c)(3) | 2008 | $2.1 million | $4.5 million | 2025-12 |
| Prescott Park Arts Festival Inc | Arts, culture and humanities | 501(c)(3) | 1983 | $2 million | $1.6 million | 2024-12 |
| Area Homecare & Family Services Inc | Human services | 501(c)(3) | 1972 | $1.6 million | $2.5 million | 2025-06 |
| Operation Blessing Inc | Human services | 501(c)(3) | 1983 | $1.6 million | $964,460 | 2025-12 |
| New Hampshire Democracy Fund | Civil rights, social action and advocacy | 501(c)(3) | 2020 | $1.5 million | $516,402 | 2024-12 |
| Habitat for Humanity International Inc | 501(c)(3) | 1987 | $1.5 million | $2.1 million | 2025-06 | |
| Housing Partnership | Housing and shelter | 501(c)(3) | 1989 | $1.5 million | $12.8 million | 2025-12 |
| 3S Contemporary Arts Space Inc | Arts, culture and humanities | 501(c)(3) | 2011 | $1.1 million | $1.2 million | 2024-12 |
| Krempels Brain Injury Center | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1999 | $1.1 million | $1.5 million | 2025-06 |
| Pha Housing Development LTD | Housing and shelter | 501(c)(3) | 1998 | $1.1 million | $11.2 million | 2024-12 |
| Seacoast Mental Health Center Resource Group Inc | Mental health and crisis intervention | 501(c)(3) | 1987 | $1 million | $6.8 million | 2025-06 |
| The Center for Responsible Seafood Inc | Food, agriculture and nutrition | 501(c)(3) | 2010 | $1 million | $862,807 | 2025-12 |
| New England Sports Complex Inc | Recreation and sports | 501(c)(3) | 2006 | $1 million | $6.8 million | 2024-12 |
| New Hampshire Outright | Youth development | 501(c)(3) | 1995 | $950,141 | $1.1 million | 2025-12 |
| Black Heritage Trail of New Hampshire Inc | Arts, culture and humanities | 501(c)(3) | 2017 | $946,621 | $1.6 million | 2025-12 |
| Friends of Lafayette House | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2017 | $926,973 | $1.4 million | 2025-12 |
| Connections Peer Support Center | Human services | 501(c)(3) | 1995 | $898,264 | $802,095 | 2025-06 |
| Raise the Children International | International, foreign affairs and national security | 501(c)(3) | 2008 | $843,049 | $184,710 | 2025-12 |
| Benevolent & Protective Order of Elks of the USA | 501(c)(8) | 1951 | $829,434 | $1.9 million | 2026-03 | |
| My Breast Cancer Support | Diseases, disorders and medical disciplines | 501(c)(3) | 2005 | $827,530 | $771,753 | 2025-12 |
| Portsmouth Historical Society | 501(c)(3) | 1993 | $800,725 | $3 million | 2024-12 | |
| Proprietors Portsmouth Athenaeum | Education | 501(c)(3) | 1958 | $762,070 | $4.2 million | 2025-12 |
| Golden Eagles Association | Recreation and sports | 501(c)(3) | 2025 | $745,174 | $221,257 | 2024-12 |
| Star Island Permanent Trust Fund | Religion-related | 501(c)(3) | 1999 | $734,278 | $6.1 million | 2025-12 |
| Gundalow Company | Education | 501(c)(3) | 2002 | $725,175 | $1 million | 2025-12 |
| James W Foley Legacy Foundation Inc | Human services | 501(c)(3) | 2014 | $716,349 | $977,470 | 2024-12 |
| Great Bay Volleyball Club Inc | Recreation and sports | 501(c)(3) | 2008 | $698,376 | $34,304 | 2025-12 |
| Learning Courage | Human services | 501(c)(3) | 2020 | $614,265 | $140,351 | 2025-12 |
| Seacoast Community Chamber Orchestra | Arts, culture and humanities | 501(c)(3) | 1998 | $584,716 | $302,209 | 2025-06 |
| Goodwork | Employment | 501(c)(3) | 2019 | $582,408 | $426,325 | 2025-12 |
| Seacoast Pathways | Mental health and crisis intervention | 501(c)(3) | 2013 | $576,022 | $69,617 | 2025-09 |
| Seacoast Child Advocacy Center Inc | Human services | 501(c)(3) | 2002 | $569,476 | $1.2 million | 2024-12 |
| Portsmouth Submarine & Maritime Association | Arts, culture and humanities | 501(c)(3) | 1983 | $555,485 | $2.6 million | 2025-12 |
| Arts in Reach-Encouraging Growth Through the Arts | Arts, culture and humanities | 501(c)(3) | 1999 | $523,116 | $1 million | 2025-12 |
| Blue Ocean Society for Marine Conservation Inc | Animal-related | 501(c)(3) | 2002 | $461,055 | $46,635 | 2026-04 |
| Seacoast Board of Realtors Inc | Community improvement and capacity building | 501(c)(6) | 2004 | $455,808 | $1.9 million | 2025-12 |
| American Legion | Public and societal benefit | 501(c)(19) | 1946 | $442,416 | $1.3 million | 2025-06 |
| Portsmouth Chamber of Commerce Inc | 501(c)(6) | 1965 | $436,210 | $440,654 | 2025-06 | |
| Childrens Law Center of New Hampshire | Crime and legal-related | 501(c)(3) | 2023 | $428,665 | $243,516 | 2024-12 |
| Aids Response-Seacoast | Diseases, disorders and medical disciplines | 501(c)(3) | 1989 | $411,842 | $293,972 | 2025-06 |
| Rain for the Sahel and Sahara Inc | Human services | 501(c)(3) | 2002 | $402,735 | $250,193 | 2025-09 |
| New Hampshire Chapter American Institute of Architects | 501(c)(6) | 1980 | $383,179 | $309,689 | 2025-12 | |
| National Society of Colonial Dames of America in the State of NH | Arts, culture and humanities | 501(c)(3) | 1951 | $381,129 | $3.5 million | 2024-12 |
| Port City Makerspace | Human services | 501(c)(3) | 2014 | $342,702 | $369,451 | 2025-12 |
| New Hampshire Art Association Inc | 501(c)(3) | 1964 | $325,212 | $397,833 | 2025-04 | |
| Laborers International Union of North America | 501(c)(5) | 1940 | $322,065 | $1.1 million | 2025-09 | |
| New England Young Fishermens Alliance | Employment | 501(c)(3) | 2023 | $311,245 | $154,670 | 2025-12 |
| Charitable Division of the Rotary Club of Portsmouth New Hampshire | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1996 | $294,078 | $4 million | 2026-06 |
| Warwick Club | Recreation and sports | 501(c)(7) | 2013 | $293,620 | $871,254 | 2025-07 |
| Seacoast Womens Giving Circle | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2020 | $283,979 | $183,184 | 2025-12 |
| Step Up Parents | Human services | 501(c)(3) | 2018 | $282,260 | $196,587 | 2025-12 |
| New Hampshire Theatre Project | Arts, culture and humanities | 501(c)(3) | 1988 | $280,417 | $99,433 | 2025-08 |
| Players Ring Company | Arts, culture and humanities | 501(c)(3) | 1997 | $247,366 | $331,942 | 2024-06 |
| Plan New Hampshire-The Foundation for Shaping the Built Environment | 501(c)(3) | 1990 | $236,441 | $340,071 | 2025-12 | |
| Hospice Help Foundation | Health care | 501(c)(3) | 2015 | $230,554 | $82,855 | 2024-12 |
| Workforce Housing Coalition of the Greater Seacoast | Housing and shelter | 501(c)(3) | 2009 | $220,524 | $371,094 | 2025-12 |
| Safe Haven Ballet | Arts, culture and humanities | 501(c)(3) | 2019 | $219,258 | $93,638 | 2024-12 |
| Warner House Association | Arts, culture and humanities | 501(c)(3) | 1934 | $214,432 | $1.7 million | 2025-10 |
| The New Hampshire Law Enforcement Cancer and Charitable Foundation | Human services | 501(c)(3) | 2008 | $208,456 | $932,916 | 2024-12 |
| Opl Charities | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2005 | $193,151 | $866,254 | 2024-12 |
| Loyal Order of Moose 444 | 501(c)(8) | 2018 | $189,768 | $744,348 | 2025-04 | |
| Bluebird Leaders | Science and technology | 501(c)(3) | 2022 | $184,051 | $99,919 | 2024-12 |
| I Got Bridged | Mental health and crisis intervention | 501(c)(3) | 2021 | $183,353 | $150,805 | 2025-12 |
| Kids Five and Over | Human services | 501(c)(3) | 2013 | $177,454 | $289,735 | 2025-12 |
| Womenaid of Greater Portsmouth | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2005 | $171,717 | $267,870 | 2025-12 |
| Seacoast Village Project | Human services | 501(c)(3) | 2019 | $170,915 | $96,591 | 2025-12 |
| Pro Portsmouth Inc | 501(c)(3) | 1979 | $160,374 | $16,773 | 2025-08 | |
| New Hampshire Mime Company | Arts, culture and humanities | 501(c)(3) | 1978 | $159,363 | $346,343 | 2025-07 |
| Little League Baseball Inc | 501(c)(3) | 1967 | $151,272 | $120,211 | 2025-09 | |
| Reds Good Vibes Inc | Human services | 501(c)(3) | 2020 | $150,558 | $1,403 | 2024-12 |
| Portsmouth Public Media Inc | Arts, culture and humanities | 501(c)(3) | 2010 | $145,864 | $42,684 | 2025-06 |
| Wentworth-Gardner Historic House Association | 501(c)(3) | 1956 | $144,100 | $1.4 million | 2025-09 | |
| Bettys Dream- A Foundation for the Physically Handicapped Inc | 501(c)(3) | 1980 | $142,464 | $3.1 million | 2024-12 | |
| International Brotherhood of Boilmakers Iron Ship Builders Blac | Mutual and membership benefit | 501(c)(5) | 1954 | $138,905 | $77,076 | 2025-06 |
| Rise - Empowering Women and Children | Human services | 501(c)(3) | 2022 | $136,794 | $95,301 | 2024-12 |
| New Hampshire Seacoast Greenway Alliance | Recreation and sports | 501(c)(3) | 2022 | $136,049 | $197,579 | 2025-12 |
| Leadership Seacoast | Environment | 501(c)(3) | 1991 | $126,490 | $48,132 | 2025-08 |
| New Museum of Portsmouth Inc | Arts, culture and humanities | 501(c)(3) | 2009 | $125,250 | $25,222 | 2023-12 |
| Portsmouth City Soccer Club Inc | Recreation and sports | 501(c)(3) | 1997 | $120,908 | $31,015 | 2026-04 |
| Portsmouth Regional Hospital Medical Staff Educational Fund | 501(c)(6) | 1992 | $116,800 | $113,039 | 2025-12 | |
| Isle of Shoals Association Inc Unitarian Universalist | Religion-related | 501(c)(3) | 2001 | $113,812 | $213,179 | 2025-10 |
| GFWC Womens City Club Inc | Community improvement and capacity building | 501(c)(3) | 2014 | $109,036 | $229,352 | 2025-04 |
| Society for the Care of the South Cemetery | 501(c)(13) | 1934 | $107,659 | $4.9 million | 2025-12 | |
| New Hampshire Stories Inc | Human services | 501(c)(3) | 1999 | $104,342 | $171,165 | 2024-12 |
| Star Island Life On A Star Conferences Corporation | Human services | 501(c)(3) | 2019 | $103,927 | $76,142 | 2025-12 |
| Piscataqua Youth Sailing Association | Youth development | 501(c)(3) | 2020 | $103,777 | $135,215 | 2025-12 |
| Independent Order of Odd Fellows | 501(c)(8) | 1966 | $102,519 | $1.8 million | 2025-09 | |
| Portsmouth Aikido | Education | 501(c)(3) | 2010 | $98,913 | $8,292 | 2025-12 |
| Dharmachakra Inc | Religion-related | 501(c)(3) | 2009 | $95,745 | $15,513 | 2025-12 |
| Cultivate | Arts, culture and humanities | 501(c)(3) | 2023 | $91,807 | $124,446 | 2024-12 |
| United Association of Journeymen & Apprentices of the Plumbing & Pipe | 501(c)(5) | 1959 | $89,113 | $176,548 | 2025-12 | |
| Friends of Voices From the Heart | Food, agriculture and nutrition | 501(c)(3) | 2006 | $83,899 | $33,667 | 2025-08 |
| St Johns Masonic Assoc Inc | 501(c)(10) | 1995 | $79,173 | $528,422 | 2024-12 | |
| International Brotherhood of Electrical Workers | 501(c)(5) | 1940 | $78,980 | $59,169 | 2025-12 | |
| Rotary International | 501(c)(4) | 1942 | $76,473 | $239,021 | 2026-06 | |
| Seacoast Arts and Cultural Alliance | 501(c)(3) | 1989 | $75,206 | $50,114 | 2025-12 | |
| International Association of Fire Fighters | 501(c)(5) | 1940 | $75,043 | $126,300 | 2024-12 | |
| Craniocervical Foundation Inc | Health care | 501(c)(3) | 2017 | $72,359 | $31,167 | 2024-12 |
| Korean-American Society of New Hampshire | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2006 | $70,469 | $259,832 | 2025-12 |
| United States Yoga Federation | Recreation and sports | 501(c)(3) | 2009 | $66,916 | $82,161 | 2025-08 |
| Pease Greeters Fund Inc | Public and societal benefit | 501(c)(3) | 2009 | $66,862 | $175,589 | 2025-12 |
| New Hampshire Association of Criminal Defense Lawyers | 501(c)(6) | 1995 | $63,696 | $58,195 | 2025-12 | |
| Portsmouth Pro Musica | 501(c)(3) | 1987 | $61,154 | $17,126 | 2025-08 | |
| American Federation of Labor and Congress of Industrial Organizaton | 501(c)(5) | 1978 | $55,040 | $70,746 | 2025-12 | |
| New Hampshire Optometric Charities Inc | Education | 501(c)(3) | 2006 | $54,579 | $720,947 | 2025-12 |
| Design Challenge Network Inc | Education | 501(c)(3) | 2023 | $54,405 | $55,715 | 2025-06 |
| New Hampshire Congress of Parents and Teachers | 501(c)(3) | 1995 | $52,693 | $156,774 | 2025-07 | |
| Piscataqua Maritime Commission Inc | Arts, culture and humanities | 501(c)(3) | 1998 | $52,342 | $59,240 | 2025-12 |
| New Hampshire Congress of Parents and Teachers | 501(c)(3) | 1995 | $50,537 | $58,284 | 2025-06 | |
| Propeller Club of the USA | Community improvement and capacity building | 501(c)(6) | 2017 | $48,614 | $11,703 | 2025-12 |
| International Federation of Professional & Technical Engineers | 501(c)(5) | 1964 | $45,223 | $177,283 | 2026-01 | |
| Sunrise Rotary Charitable Corporation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2006 | $44,833 | $6,620 | 2026-06 |
| Rotary International | 501(c)(4) | 1942 | $32,020 | $37,692 | 2026-06 | |
| Free & Accepted Masons of New Hampshire | 501(c)(10) | 1940 | $29,260 | $1.9 million | 2025-12 | |
| New Hampshire Film Expo | Arts, culture and humanities | 501(c)(3) | 2007 | $26,223 | $37,121 | 2023-12 |
| Seacoast Trail Riders Inc | Recreation and sports | 501(c)(7) | 2003 | $24,061 | $4,000 | 2025-12 |
| Hellenic Cultural Society of Portsmouth New Hampshire | 501(c)(3) | 1988 | $21,383 | $21,946 | 2022-06 | |
| Indian Cultural & Religious Centre | Religion-related | 501(c)(3) | 2025 | $21,113 | $3,511 | 2025-12 |
| Wentworth Coolidge Mansion Association Inc | 501(c)(3) | 1982 | $19,289 | $294,109 | 2025-12 | |
| Free & Accepted Masons of New Hampshire Grand Lodge | 501(c)(8) | 1940 | $18,106 | $3.2 million | 2024-12 | |
| Portsmouth Fire Fighters Charitable Association | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $15,830 | $39,288 | 2024-12 |
| Seacoast Jazz Society | Arts, culture and humanities | 501(c)(3) | 2012 | $15,707 | $160,986 | 2025-09 |
| Parents Music Club of the Portsmouth Public Schools | 501(c)(3) | 1963 | $11,470 | $14,556 | 2025-06 | |
| Binnie Family Charities Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2014 | $10,966 | $16,859 | 2025-12 |
| International Affairs Conference at Star Island | Education | 501(c)(3) | 2016 | $8,427 | $100,016 | 2025-12 |
| Seacoast Crime Stoppers Inc | Crime and legal-related | 501(c)(3) | 2024 | $7,307 | $84,796 | 2025-12 |
| Cutting Die Institute | 501(c)(6) | 1948 | $5,614 | $60,283 | 2025-10 | |
| Japan Society of New Hampshire | 501(c)(3) | 1988 | $2,935 | $36,106 | 2024-12 | |
| Fresh Start Laundry of the Seacoast | Health care | 501(c)(3) | 2025 | $1,685 | $1,385 | 2025-12 |
| Portsmouth Swim Team | 501(c)(7) | 1991 | $669 | $94,356 | 2022-05 | |
| Parrott Avenue Place Inc | Human services | 501(c)(3) | 2011 | $4 | $1,254 | 2026-06 |
| Access Navigators | Public and societal benefit | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Advent Christian Church | 501(c)(3) | 1958 | ||||
| Advent Christian Church Inc of Southern New Hampshire | 501(c)(3) | 1982 | ||||
| Allatt Walsh Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2005 | $3.4 million | 2025-12 | |
| American Federation of Government Employees | Employment | 501(c)(5) | 2015 | $0 | $0 | 2025-12 |
| American Legion Auxiliary | 501(c)(19) | 1946 | $0 | $109,897 | 2025-06 | |
| And Rise Inc | Employment | 501(c)(3) | 2023 | $0 | $0 | 2023-12 |
| Artists Building Capacity As World Citizens | Arts, culture and humanities | 501(c)(3) | 2012 | $0 | $0 | 2025-12 |
| B Longworth Trust Fbo Rye Congregational Church | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2023 | $1.1 million | 2025-12 | |
| Bartko Family Charitable Foundation Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1995 | $29,854 | 2025-12 | |
| Bethel Assembly of God | 501(c)(3) | 1964 | ||||
| Bow Street Theatre Trust | 501(c)(3) | 1991 | $645,684 | 2026-03 | ||
| Business Alliance for People of Color | Community improvement and capacity building | 501(c)(6) | 2022 | $0 | $0 | 2025-12 |
| Campbells Family Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2006 | $765,330 | 2025-12 | |
| Catapult Seacoast | Philanthropy, voluntarism and grantmaking foundations | 501(c)(4) | 2007 | $0 | $0 | 2025-12 |
| Charles H Lane Trust | 501(c)(3) | 1947 | $145,366 | 2025-12 | ||
| Chase Home for Children in Portsmouth N H | 501(c)(3) | 1942 | $11.3 million | 2025-06 | ||
| Cheetah RC | Recreation and sports | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Chi Aeropspace Incorporated | Education | 501(c)(3) | 2026 | |||
| Civics Workshop Inc | Education | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Coalition of Families of Korean & Cold War Pow Mias | Human services | 501(c)(3) | 1998 | $0 | $0 | 2025-12 |
| Corpus Christi Parish | 501(c)(3) | 1946 | ||||
| Dennis A Otoole Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1998 | $7.3 million | 2025-12 | |
| Dorr Foundation | 501(c)(3) | 1952 | $7.3 million | 2025-12 | ||
| Emerson and Ruth McCourt Charitable Trust Fbo NHCTC & Keene State | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2011 | $1.4 million | 2025-12 | |
| Equilibrium Project Foundation | Environment | 501(c)(3) | 2022 | $572,782 | 2025-12 | |
| Fence Force Flagline Inc | Public and societal benefit | 501(c)(3) | 2017 | $0 | $0 | 2024-12 |
| Foundation for Seacoast Health | 501(c)(3) | 1986 | $27.9 million | 2025-12 | ||
| Freedom RFC | Recreation and sports | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Freedomsong Foundation Inc | Human services | 501(c)(3) | 2010 | $0 | $0 | 2025-12 |
| Friends of the Earth Sea & Space Center | Animal-related | 501(c)(3) | 1999 | $0 | $0 | 2025-09 |
| Friends of the Herd Reserve Inc | Animal-related | 501(c)(3) | 2025 | |||
| Friends of the South End | Arts, culture and humanities | 501(c)(4) | 2012 | $0 | $0 | 2025-12 |
| Garden Club Federation of Massachusetts Inc | 501(c)(3) | 2004 | $0 | $0 | 2025-06 | |
| George T Cogan Trust | 501(c)(3) | 1972 | $281,647 | 2025-12 | ||
| Granite Springs Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| Greater Portsmouth Chamber of Commerce Foundation Inc | Community improvement and capacity building | 501(c)(3) | 1997 | $0 | $0 | 2025-06 |
| Hampshire Institute for the Advancement of Schools and Communi | Education | 501(c)(3) | 2016 | $0 | $0 | 2023-12 |
| Headwaters & Marine Stewards | Environment | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Help Come Home | Human services | 501(c)(3) | 2019 | $0 | $0 | 2024-12 |
| Houghton Maynard Ave Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2024 | |||
| Independent Womens Club Hockey Leag Ue Incorporated | Recreation and sports | 501(c)(3) | 2026 | $0 | $0 | 2026-06 |
| International Association of Fire Fighters | 501(c)(5) | 1959 | $0 | $0 | 2025-09 | |
| International Association of Machinists & Aerospace Workers | 501(c)(5) | 1961 | $0 | $0 | 2025-12 | |
| Islamic Society of the Seacoast Area Issa | Religion-related | 501(c)(3) | 2012 | |||
| Isles of Shoals Historical & Research Association | 501(c)(3) | 1993 | $0 | $0 | 2025-12 | |
| Jaffe Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1997 | $27.2 million | 2024-12 | |
| James E Whalley Museum Library | 501(c)(3) | 1964 | $563,974 | 2025-12 | ||
| Journey Song | 501(c)(3) | 2020 | $0 | $0 | 2025-12 | |
| Kiwanis International Inc | 501(c)(4) | 1940 | $0 | $0 | 2025-09 | |
| Lighthouse Credit Union Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2019 | $549,899 | 2025-12 | |
| Loislab | Education | 501(c)(3) | 2021 | $0 | $0 | 2024-12 |
| Louis P Singer Fund Inc | 501(c)(3) | 1963 | $1.1 million | 2025-12 | ||
| Louis de Rochemont Heritage Films Inc | Arts, culture and humanities | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| M Thelma Crowell Trust Fbo Rye Congregational Church | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2023 | $230,319 | 2025-12 | |
| Manifest Change Inc | Public and societal benefit | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Marilyn N Doyle Spanish Scholarship Foundation Inc | Education | 501(c)(3) | 1996 | $6,077 | 2024-12 | |
| Market Square Steeple Fund | Arts, culture and humanities | 501(c)(3) | 2006 | $0 | $0 | 2025-12 |
| McClennan Charitable Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2015 | $1 million | 2025-12 | |
| Middle Street Baptist Church | 501(c)(3) | 1955 | 2013-12 | |||
| Morf Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2002 | $659,387 | 2025-12 | |
| NH Fire Prevention Society | Community improvement and capacity building | 501(c)(6) | 2010 | $0 | $0 | 2024-12 |
| National Guard Association of New Hampshire State Military Reservati | 501(c)(4) | 1961 | $0 | $0 | 2025-06 | |
| National Society of the Children of the American Revolution | 501(c)(3) | 1973 | $0 | $0 | 2024-02 | |
| New England Aeronautical Institute Inc | Education | 501(c)(3) | 2026 | $0 | $2,977 | 2026-06 |
| New England Educational Research Organization Inc | Education | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| New England Police Benevolent Association Inc | Employment | 501(c)(5) | 2016 | |||
| New Franklin School Parent Teacher Organization Inc | Education | 501(c)(3) | 2011 | $0 | $0 | 2025-06 |
| New Frontiers Church Inc | 501(c)(3) | 1984 | 2018-08 | |||
| New Hampshire Architecture Foundation | Education | 501(c)(3) | 2009 | $0 | $0 | 2024-12 |
| New Hampshire Association of Student Financial Aid Administrat | 501(c)(3) | 1987 | $0 | $0 | 2025-12 | |
| New Hampshire Congress of Parents and Teachers | 501(c)(3) | 1995 | $0 | $0 | 2026-06 | |
| New Hampshire Project | Youth development | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Norton Street Neighborhood Revitalization Corp | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2001 | $0 | $0 | 2025-12 |
| Open Doorway Corporation | 501(c)(3) | 1972 | ||||
| Operation Love From Home | Human services | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| PHS Boys Basketball Boosters | Recreation and sports | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| PHS Swim Team Boosters | Recreation and sports | 501(c)(3) | 2025 | |||
| Pads for Pads Corp | Health care | 501(c)(3) | 2022 | $0 | $0 | 2023-12 |
| Pease Professional Firefighters Association | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Peter and Anna Kolchinsky Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $38.4 million | 2024-12 | |
| Phoenix Charities | Public and societal benefit | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Piscataqua Pioneers | Arts, culture and humanities | 501(c)(3) | 2000 | $0 | $0 | 2025-06 |
| Piscataqua Rangers Junior Fife and Drum Corps | Arts, culture and humanities | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Piscataqua Sailing Association | Recreation and sports | 501(c)(7) | 2022 | $0 | $0 | 2025-12 |
| Portsmouth Archive Center Inc | Education | 501(c)(3) | 2026 | |||
| Portsmouth Auxiliary Police Association Inc | Crime and legal-related | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Portsmouth Believers Church | Religion-related | 501(c)(3) | 2023 | |||
| Portsmouth Buddhist Center | Religion-related | 501(c)(3) | 2012 | |||
| Portsmouth Chapter 1149 Women of the Moose | 501(c)(8) | 1972 | $0 | $0 | 2026-04 | |
| Portsmouth Girls Softball Association | Recreation and sports | 501(c)(3) | 2011 | $0 | $0 | 2025-09 |
| Portsmouth Halloween Parade Corporation | Arts, culture and humanities | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Portsmouth High School Bass Fishing Boosters | Recreation and sports | 501(c)(3) | 2026 | |||
| Portsmouth High School Boys Lacrosse Booster Club | Recreation and sports | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Portsmouth High School Field Hockey Boosters | Recreation and sports | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Portsmouth High School Girls Basketball Boosters | Education | 501(c)(3) | 2024 | $0 | $0 | 2025-06 |
| Portsmouth High School Parent Teacher Association | Education | 501(c)(3) | 2023 | $0 | $0 | 2024-06 |
| Portsmouth High School Track | Education | 501(c)(3) | 2015 | $0 | $0 | 2024-12 |
| Portsmouth NH Youth Travel Basketball | Recreation and sports | 501(c)(3) | 2024 | $0 | $0 | 2025-06 |
| Portsmouth Naval Shipyard Historical Foundation Inc | 501(c)(4) | 1987 | $0 | $0 | 2025-12 | |
| Portsmouth Poet Laureate Program | Arts, culture and humanities | 501(c)(3) | 2006 | $0 | $0 | 2026-03 |
| Portsmouth Softball Boosters | Recreation and sports | 501(c)(3) | 2025 | $0 | $0 | 2025-06 |
| Pure Bride Ministries | Religion-related | 501(c)(3) | 1999 | |||
| Ramsey Wurtele Foundation | Education | 501(c)(3) | 2024 | $90,956 | 2025-12 | |
| Raymond & Lorraine Letourneau | 501(c)(3) | 1979 | $182,158 | 2025-12 | ||
| Recovery Kitchen | Food, agriculture and nutrition | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Roger R Thompson & Theresa S Endowment Fund Fbo Local Charity | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2002 | $1.1 million | 2025-12 | |
| Roger R Thompson Endowment Fbo Berwick Academy S Berwick Maine | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2002 | $344,308 | 2025-12 | |
| Safety Nest Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2020 | $411 | 2024-12 | |
| Seacoast African American Cultural Center Association | Arts, culture and humanities | 501(c)(3) | 2003 | $0 | $0 | 2025-09 |
| Seacoast Anti Pollution League | Environment | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Seacoast Area Bicycle Routes Inc | Recreation and sports | 501(c)(3) | 1999 | $0 | $0 | 2025-12 |
| Seacoast Climate Action Now | Environment | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Seacoast Community Lunch | Food, agriculture and nutrition | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Seacoast Community Radio | Arts, culture and humanities | 501(c)(3) | 2020 | $0 | $0 | 2024-12 |
| Seacoast Conservative Baptist Church of Portsmouth N H | 501(c)(3) | 1970 | ||||
| Seacoast Esthetic Dentistry Associations | Education | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Seacoast Newcomers Club | Recreation and sports | 501(c)(7) | 2008 | $0 | $0 | 2026-06 |
| Seacoast Score | Employment | 501(c)(3) | 2026 | |||
| Seacoast Ultimate | Recreation and sports | 501(c)(7) | 2025 | $0 | $0 | 2025-12 |
| Sert Relief Association Inc | Crime and legal-related | 501(c)(3) | 2026 | |||
| Service Credit Union Impact Foundation | Education | 501(c)(3) | 2020 | $946,588 | 2025-12 | |
| Sicot Foundation Incorporated | 501(c)(3) | 1993 | $350,351 | 2025-12 | ||
| Small Town Turnaround Inc | Community improvement and capacity building | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Society of American Military Engineers | 501(c)(3) | 1954 | $0 | $0 | 2025-12 | |
| Spiritual Assembly of the Bahais of Portsmouth | 501(c)(3) | 1965 | ||||
| St Nicholas Greek Orthodox Church | Religion-related | 501(c)(3) | 2021 | |||
| St Patrick School | 501(c)(3) | 1946 | ||||
| Stephen M Ross Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2016 | $11.7 million | 2024-12 | |
| Submarine Squadron Two Asscoiation | Arts, culture and humanities | 501(c)(3) | 2026 | |||
| Tarbell Charitable Trust | Arts, culture and humanities | 501(c)(3) | 2009 | $4.1 million | 2025-12 | |
| Task Force Rain Corporation | Science and technology | 501(c)(3) | 2025 | |||
| Team Dennis Foundation | Diseases, disorders and medical disciplines | 501(c)(3) | 2026 | |||
| Tech Collaborative | Education | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Temple Israel | Religion-related | 501(c)(3) | 2025 | |||
| Ten Fingers Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2020 | $22.5 million | 2025-08 | |
| The Dept of New Hampshire Roa | Public and societal benefit | 501(c)(19) | 2014 | $0 | $0 | 2025-05 |
| The Holtzman Family Foundation Inc | 501(c)(3) | 1955 | $4.4 million | 2025-12 | ||
| The Webs Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2015 | $272,272 | 2025-12 | |
| Third Street Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2009 | $1.3 million | 2025-12 | |
| Trefoil Foundation Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2003 | $12,588 | 2025-12 | |
| Unitarian Universalist Church | Religion-related | 501(c)(3) | 2004 | 2017-12 | ||
| United Brotherhood of Carpenters & Joiners of America | 501(c)(5) | 1970 | $0 | $0 | 2025-06 | |
| Veterans in Performing Arts -Vipa | Arts, culture and humanities | 501(c)(3) | 2014 | $0 | $0 | 2024-06 |
| Viener Foundation Inc | 501(c)(3) | 1992 | $277,878 | 2025-12 | ||
| Weatherlow Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2011 | $4.8 million | 2025-12 | |
| Willow Brook Farm & Art Center Inc | Food, agriculture and nutrition | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Windhover Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1999 | $1.5 million | 2025-12 | |
| Yoga By Donation Inc | Education | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
By cause in Portsmouth, NH
- Philanthropy, voluntarism and grantmaking foundations 39
- Arts, culture and humanities 35
- Human services 28
- Education 25
- Recreation and sports 23
- Religion-related 11
- Community improvement and capacity building 10
- Public and societal benefit 7
- Employment 6
- Food, agriculture and nutrition 5
- Environment 5
- Mental health and crisis intervention 4
- Crime and legal-related 4
- Housing and shelter 4
- Diseases, disorders and medical disciplines 4
- Science and technology 4
- Health care 4
- Youth development 3
- Animal-related 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.