Data / Nonprofits / Colorado / Longmont
Nonprofits in Longmont, CO: 659 registered with the IRS
659 nonprofits are registered with the IRS in Longmont, CO, 547 of them 501(c)(3) charities; the 205 that report revenue took in $253 million. The largest by revenue: First Nations Development Institute ($56.4 million), Oweesta Corporation ($19.1 million), Twin Peaks Charter Academy ($13.5 million). Most common causes: education (82), arts, culture and humanities (53), religion-related (53).
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The 500 largest by revenue
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| First Nations Development Institute | 501(c)(3) | 1984 | $56.4 million | $116.2 million | 2025-06 | |
| Oweesta Corporation | Community improvement and capacity building | 501(c)(3) | 2000 | $19.1 million | $117.8 million | 2025-06 |
| Twin Peaks Charter Academy | Education | 501(c)(3) | 2018 | $13.5 million | $30.3 million | 2025-06 |
| Hover Senior Living Community | 501(c)(3) | 1983 | $12.6 million | $23.1 million | 2025-06 | |
| Flagstaff Academy Inc | Education | 501(c)(3) | 2014 | $11.3 million | $18.4 million | 2025-06 |
| Outreach United Resource Center Inc | 501(c)(3) | 1987 | $7.5 million | $10.1 million | 2025-06 | |
| Hopelight Medical Clinic | Human services | 501(c)(3) | 2014 | $5.9 million | $567,538 | 2024-12 |
| Wild Plum Center for Young Children and Families Inc | Education | 501(c)(3) | 2015 | $5.6 million | $5.7 million | 2025-08 |
| Longmont Humane Society Inc | Animal-related | 501(c)(3) | 1974 | $5.3 million | $7.5 million | 2024-12 |
| Twin Cities Schools Telecommunications Group Inc | Community improvement and capacity building | 501(c)(4) | 2002 | $4.5 million | $28.8 million | 2025-03 |
| Friends of the Longmont Museum | Arts, culture and humanities | 501(c)(3) | 1993 | $4.5 million | $1.8 million | 2024-12 |
| Habitat for Humanity International Inc | 501(c)(3) | 1987 | $4.3 million | $8.6 million | 2025-06 | |
| St Vrain Community Montessori School | Education | 501(c)(3) | 2009 | $4 million | $2.9 million | 2025-06 |
| Inn Between of Longmont Inc | Housing and shelter | 501(c)(3) | 1999 | $4 million | $12.9 million | 2025-12 |
| TLC Learning Center Inc | Education | 501(c)(3) | 1966 | $4 million | $9.4 million | 2024-12 |
| Mountain States Childrens Home Inc | Human services | 501(c)(3) | 1965 | $4 million | $12.1 million | 2024-12 |
| Longmont Community Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2014 | $3.9 million | $27.2 million | 2024-12 |
| Playa Lakes Joint Venture | Environment | 501(c)(3) | 2003 | $3.6 million | $1.6 million | 2024-12 |
| Colorado Horse Rescue | Animal-related | 501(c)(3) | 1989 | $3.6 million | $7.1 million | 2025-06 |
| Hillside Learning Center | Education | 501(c)(3) | 2005 | $3.2 million | $5.5 million | 2025-08 |
| Association of Waldorf Schools | 501(c)(3) | 1979 | $3 million | $1 million | 2025-07 | |
| Dogs Playing for Life | Animal-related | 501(c)(3) | 2015 | $3 million | $1 million | 2025-12 |
| Wildlands Restoration Volunteers | Environment | 501(c)(3) | 2002 | $2.4 million | $2.5 million | 2026-02 |
| Natural Capitalism Solutions Inc | Environment | 501(c)(3) | 2004 | $2.3 million | $2.6 million | 2025-12 |
| Longmont Christian School Inc | Education | 501(c)(3) | 2008 | $2 million | $1.7 million | 2025-07 |
| Recovery Cafe Longmont | Mental health and crisis intervention | 501(c)(3) | 2019 | $2 million | $3.5 million | 2025-12 |
| Boulder County Farmers Market | Food, agriculture and nutrition | 501(c)(3) | 2025 | $1.8 million | $1.4 million | 2024-12 |
| Queer Asterisk | Mental health and crisis intervention | 501(c)(3) | 2017 | $1.7 million | $845,589 | 2025-12 |
| Association for Community Living in Boulder County | 501(c)(3) | 1976 | $1.6 million | $2.9 million | 2024-12 | |
| Hope-Homeless Outreach Providing Encouragement | Human services | 501(c)(3) | 2007 | $1.6 million | $570,247 | 2024-12 |
| Saint Vrain Valley Education Association | 501(c)(5) | 1982 | $1.6 million | $1.1 million | 2025-08 | |
| Drylands Agroecology Research Foundation | Food, agriculture and nutrition | 501(c)(3) | 2018 | $1.5 million | $733,767 | 2024-12 |
| The Early Childhood Council of Boulder County | Human services | 501(c)(3) | 1997 | $1.4 million | $794,341 | 2025-12 |
| Safe Shelter of St Vrain Valley | 501(c)(3) | 1980 | $1.3 million | $1.5 million | 2024-12 | |
| Longmont Meals On Wheels Inc | 501(c)(3) | 1970 | $1.3 million | $3.1 million | 2024-12 | |
| Boulder County Fair Livestock Show and Rodeo | Education | 501(c)(3) | 1999 | $1.3 million | $915,605 | 2025-12 |
| Gerry Spence Method at Thunderhead Ranch Inc | Education | 501(c)(3) | 2021 | $1.2 million | $202,424 | 2024-12 |
| Can D Aid | Human services | 501(c)(3) | 2013 | $1.2 million | $646,199 | 2025-12 |
| Community Roots Midwife Collective Non Profit | Health care | 501(c)(3) | 2019 | $1.2 million | $743,248 | 2025-12 |
| Denver Center Child Care Assoc | Human services | 501(c)(3) | 1998 | $1 million | $176,004 | 2024-12 |
| Gateway Montessori School | Education | 501(c)(3) | 1983 | $1 million | $424,091 | 2025-07 |
| Colorado Therapeutic Riding Center | 501(c)(3) | 1982 | $964,537 | $969,651 | 2025-12 | |
| Reentry Initiative | Crime and legal-related | 501(c)(3) | 2017 | $956,161 | $396,578 | 2024-12 |
| Life Choices Pregnancy Center A Non Profit Corporation | Health care | 501(c)(3) | 1985 | $881,685 | $2.1 million | 2025-12 |
| Chamber of Commerce | 501(c)(6) | 1955 | $873,881 | $1.1 million | 2024-12 | |
| Billiard Congress of America | 501(c)(6) | 1989 | $853,027 | $1.2 million | 2025-09 | |
| St Vrain Valley Educational Foundation Inc | 501(c)(3) | 1986 | $838,925 | $1.5 million | 2025-06 | |
| Association for Challenge Course Technology Inc | 501(c)(6) | 1996 | $793,246 | $486,812 | 2025-06 | |
| Longmont Symphony Society Inc | Arts, culture and humanities | 501(c)(3) | 1974 | $757,746 | $434,341 | 2025-06 |
| Longmont Area Economic Council | 501(c)(6) | 1988 | $744,385 | $338,607 | 2024-12 | |
| Colorado Grain Chain | Food, agriculture and nutrition | 501(c)(3) | 2022 | $742,269 | $574,468 | 2025-12 |
| Milas Miracle Foundation Inc | Medical research | 501(c)(3) | 2017 | $706,872 | $483,957 | 2024-12 |
| Lightshine Canine Inc | Animal-related | 501(c)(3) | 2021 | $694,240 | $62,762 | 2024-12 |
| Christaid International Inc | Human services | 501(c)(3) | 1998 | $640,216 | $330,093 | 2024-12 |
| Longs Peak Hospital Foundation | Health care | 501(c)(3) | 2017 | $627,528 | $902,594 | 2025-06 |
| A Womans Work Inc | Human services | 501(c)(3) | 2007 | $618,466 | $980,009 | 2025-12 |
| Sober Af Entertainment | Human services | 501(c)(3) | 2018 | $614,388 | $262,619 | 2025-12 |
| The Americas Association for the Care of Children | International, foreign affairs and national security | 501(c)(3) | 2008 | $612,709 | $199,510 | 2024-12 |
| Crossroads School | Education | 501(c)(3) | 2011 | $595,678 | $441,966 | 2025-06 |
| Medicine Horse Program | Mental health and crisis intervention | 501(c)(3) | 2001 | $583,493 | $292,705 | 2025-12 |
| Viva Network North America | International, foreign affairs and national security | 501(c)(3) | 2000 | $577,217 | $225,044 | 2026-03 |
| Colorado Robotics Excelling Atscience & Technology | Education | 501(c)(3) | 2008 | $574,136 | $802,417 | 2025-06 |
| Tinkermill | Science and technology | 501(c)(3) | 2014 | $573,708 | $1.6 million | 2024-12 |
| Teaching Peace | Education | 501(c)(3) | 1995 | $560,596 | $230,318 | 2024-12 |
| El Comite de Longmont Inc | 501(c)(3) | 1984 | $556,023 | $275,161 | 2024-12 | |
| Longmont Area Visitors Association Inc | Community improvement and capacity building | 501(c)(6) | 2009 | $539,498 | $287,583 | 2025-12 |
| Code 3 Associates Inc | Public safety, disaster preparedness and relief | 501(c)(3) | 1998 | $524,272 | $1.2 million | 2025-12 |
| Robertas Legacy Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 2018 | $514,596 | $498,815 | 2025-12 |
| American Legion | 501(c)(19) | 1967 | $495,791 | $309,989 | 2025-06 | |
| Boco Volleyball Athletic Club Corp | Recreation and sports | 501(c)(3) | 2023 | $492,571 | $1,417 | 2025-06 |
| Kiwanis International Inc | 501(c)(4) | 1940 | $475,967 | $89,274 | 2025-09 | |
| Longmont Cemetery Association | Mutual and membership benefit | 501(c)(13) | 2023 | $467,774 | $6.3 million | 2025-06 |
| First Church of Sanctuary | Religion-related | 501(c)(3) | 2024 | $465,588 | $193,771 | 2025-12 |
| Longmont Lodge No 1548 Loyal Order of Moose | 501(c)(8) | 1972 | $445,598 | $1.4 million | 2024-04 | |
| Friends of the Longmont Senior Center Inc | Human services | 501(c)(3) | 1983 | $405,654 | $2.9 million | 2024-12 |
| Lodge at Hover Crossing | Housing and shelter | 501(c)(3) | 2007 | $405,228 | $5 million | 2024-12 |
| Longmont Baseball League Inc | Recreation and sports | 501(c)(3) | 1995 | $404,395 | $567,989 | 2025-12 |
| Two Rivers Uniserv Unit | Employment | 501(c)(5) | 2008 | $391,753 | $351,406 | 2025-08 |
| New Consolidated Lower Boulder Reservoir and Ditch Company | 501(c)(12) | 1997 | $383,484 | $2.1 million | 2025-11 | |
| Hearthstone at Hover Crossing | Housing and shelter | 501(c)(3) | 2011 | $378,992 | $6.1 million | 2024-12 |
| Longmont Observer | Arts, culture and humanities | 501(c)(3) | 2017 | $376,165 | $199,968 | 2024-12 |
| Centennial State Ballet | Arts, culture and humanities | 501(c)(3) | 2013 | $370,625 | $13,636 | 2025-05 |
| Colorado Friendship | Food, agriculture and nutrition | 501(c)(3) | 2012 | $362,840 | $149,547 | 2025-12 |
| Colorado Association for Recycling Inc | Environment | 501(c)(3) | 2002 | $357,906 | $194,976 | 2025-12 |
| Friends of the Longmont Public Library | 501(c)(3) | 1985 | $344,995 | $593,626 | 2025-04 | |
| Crudspa Foundation | Education | 501(c)(3) | 2025 | $328,920 | $166,175 | 2024-12 |
| Longmont Swim Club Inc | 501(c)(3) | 1975 | $322,461 | $236,868 | 2025-12 | |
| Paleocultural Research Group | Science and technology | 501(c)(3) | 1997 | $318,728 | $65,810 | 2024-12 |
| Farmers Ditch Company | Food, agriculture and nutrition | 501(c)(12) | 2023 | $313,818 | $533,408 | 2025-12 |
| South Park Rail Society | Arts, culture and humanities | 501(c)(3) | 2016 | $288,751 | $356,527 | 2025-12 |
| A Way Forward Inc | Mental health and crisis intervention | 501(c)(3) | 2020 | $286,064 | $59,841 | 2024-12 |
| St Vrain Historical Society Inc | 501(c)(3) | 1971 | $279,201 | $1.1 million | 2024-12 | |
| Gear Alliance Inc | Youth development | 501(c)(3) | 2015 | $264,511 | $231,068 | 2024-12 |
| Co Alas | Education | 501(c)(3) | 2014 | $262,493 | $24,550 | 2025-12 |
| Good Life Refuge | Human services | 501(c)(3) | 2019 | $254,290 | $181,976 | 2025-12 |
| The Exchange | Religion-related | 501(c)(3) | 2010 | $252,691 | $350,493 | 2024-12 |
| The Arts Studio Dba Firehouse Art Center | 501(c)(3) | 1985 | $245,120 | $242,886 | 2024-12 | |
| The Pearl Group Inc | Human services | 501(c)(3) | 2013 | $240,952 | $215,401 | 2024-12 |
| Longmont United Hospital Foundation | 501(c)(3) | 1981 | $240,947 | $5.3 million | 2025-12 | |
| Longmont High School Music Boosters | Education | 501(c)(3) | 2002 | $230,581 | $385,642 | 2025-08 |
| Skyline Longmont Kiwanis Foundation | Community improvement and capacity building | 501(c)(3) | 2014 | $207,772 | $61,899 | 2025-09 |
| Base Line Land & Reservoir Co | Environment | 501(c)(12) | 2019 | $205,625 | $2.5 million | 2024-11 |
| Mwebaza Foundation | Human services | 501(c)(3) | 2008 | $197,503 | $3.6 million | 2025-12 |
| E4 Project Inc | Health care | 501(c)(3) | 2011 | $196,320 | $84,259 | 2025-12 |
| Benevolent & Protective Order of Elks of the USA | 501(c)(8) | 1951 | $194,383 | $381,559 | 2026-03 | |
| Straight From the Heart | Religion-related | 501(c)(3) | 2000 | $192,249 | $64,932 | 2024-12 |
| Lets Be Ready | Education | 501(c)(3) | 2014 | $186,288 | $80,966 | 2024-12 |
| Wambale Inc | International, foreign affairs and national security | 501(c)(3) | 2012 | $183,934 | $213,701 | 2024-12 |
| Sting Girls Diamond Sports Club | Arts, culture and humanities | 501(c)(3) | 2009 | $178,444 | $48,324 | 2023-12 |
| Relief South Sudan | Religion-related | 501(c)(3) | 2019 | $178,077 | $576 | 2024-12 |
| Fraternal Order of Police | 501(c)(8) | 1952 | $171,727 | $167,842 | 2024-12 | |
| Hope for Children Foundation | Human services | 501(c)(3) | 2002 | $171,557 | $821,883 | 2025-12 |
| Colorado Top Team | Recreation and sports | 501(c)(3) | 2019 | $169,944 | $34,150 | 2024-12 |
| Longmont Theatre Company | Arts, culture and humanities | 501(c)(3) | 1989 | $169,188 | $302,457 | 2025-06 |
| Snow Lion School | 501(c)(3) | 2004 | $166,572 | $568,814 | 2025-05 | |
| Activenviro | Recreation and sports | 501(c)(3) | 2010 | $165,048 | $3,952 | 2025-12 |
| Berthoud Gun Club Inc | 501(c)(7) | 1953 | $164,794 | $178,594 | 2024-12 | |
| Elevated Communities | Employment | 501(c)(3) | 2023 | $158,761 | $46,163 | 2024-12 |
| Longmont Latin School | Education | 501(c)(3) | 2025 | $155,090 | $36,141 | 2025-06 |
| Foundation for Scalable Innovations in Education | Youth development | 501(c)(3) | 2021 | $153,978 | $29,773 | 2025-12 |
| Knick O Time Horse Rescue and Rehabilitation | Animal-related | 501(c)(3) | 2005 | $152,225 | $39,225 | 2024-12 |
| Quilts for Kids | Human services | 501(c)(3) | 2014 | $140,824 | $136,422 | 2024-12 |
| Masonic Temple Board of Trustees Inc | Community improvement and capacity building | 501(c)(2) | 2016 | $123,599 | $466,892 | 2025-11 |
| Silver Creek Organization for Performing Arts | Arts, culture and humanities | 501(c)(3) | 2006 | $119,502 | $89,961 | 2025-07 |
| Davidson Highline Lateral Ditch Co | Public and societal benefit | 501(c)(12) | 2014 | $114,337 | $398,358 | 2025-12 |
| Longmont Friends of Feral and Abandoned Cats | Animal-related | 501(c)(3) | 2013 | $110,701 | $116,787 | 2025-12 |
| Rotary Club of Longmont | 501(c)(4) | 1966 | $110,533 | $50,030 | 2026-06 | |
| Independent Order of Odd Fellows | 501(c)(8) | 1962 | $110,262 | $797,437 | 2025-12 | |
| Billiard Education Foundation | Community improvement and capacity building | 501(c)(3) | 1993 | $109,952 | $169,664 | 2025-09 |
| Deep Water Soul Care | Health care | 501(c)(3) | 2018 | $108,943 | $35,949 | 2024-12 |
| Flagstaff Academy Parent Teacher Organization | Education | 501(c)(3) | 2012 | $107,956 | $55,113 | 2025-06 |
| Shielas Sanctuary | Housing and shelter | 501(c)(3) | 2023 | $105,246 | $10,072 | 2025-12 |
| Rocky Mountain Ultimate | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2007 | $105,236 | $74,985 | 2024-12 |
| Colorado Photonics Industry Association Inc | 501(c)(6) | 1998 | $104,800 | $147,154 | 2025-12 | |
| Happy Day Plants Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2024 | $99,346 | $37,907 | 2025-12 |
| Sigma Phi Epsilon Building Association | 501(c)(2) | 2019 | $97,875 | $1.4 million | 2026-06 | |
| Fairy Ring Garden Inc | Education | 501(c)(3) | 2018 | $95,823 | $22,538 | 2024-12 |
| Fields of Hope Outreach | Human services | 501(c)(3) | 2024 | $93,405 | $99,092 | 2025-12 |
| Davidson Ditch and Reservoir Company | Mutual and membership benefit | 501(c)(12) | 2024 | $90,791 | $240,628 | 2025-12 |
| Boulder & Weld County Ditch Company | 501(c)(12) | 1945 | $90,716 | $232,792 | 2025-12 | |
| Crossroads Homeschool Enrichment Program | Education | 501(c)(3) | 2024 | $90,314 | $9,313 | 2025-06 |
| Acres of Hope | Animal-related | 501(c)(3) | 2017 | $89,248 | $9,066 | 2025-12 |
| Reintegra Inc | Mental health and crisis intervention | 501(c)(3) | 2015 | $87,928 | $36,320 | 2025-12 |
| Longmont Latinx Voices | Education | 501(c)(3) | 2022 | $85,886 | $1 | 2024-12 |
| Able for Youth Inc | Youth development | 501(c)(3) | 2015 | $84,101 | $62,891 | 2023-12 |
| Rotary International | 501(c)(4) | 1942 | $82,542 | $35,803 | 2026-06 | |
| Leggett Ditch and Reservoir Company | 501(c)(12) | 1945 | $80,663 | $1 | 2025-12 | |
| Upside Collective Inc | Human services | 501(c)(3) | 2025 | $80,543 | $53,778 | 2025-12 |
| Warrior Storyfield | Arts, culture and humanities | 501(c)(3) | 2015 | $78,959 | $89,348 | 2025-12 |
| Annie and Millies Place | Animal-related | 501(c)(3) | 2021 | $75,853 | $45,670 | 2025-06 |
| Dandelion Arts Collective | Arts, culture and humanities | 501(c)(3) | 2024 | $74,513 | $23,377 | 2025-12 |
| South Boulder Canon Ditch Company | Public and societal benefit | 501(c)(12) | 2017 | $73,478 | $211,856 | 2025-12 |
| Boulder White Rock Rod and Gun Club Inc | 501(c)(7) | 1992 | $71,900 | $35,460 | 2025-12 | |
| Longmont Chorale Inc | 501(c)(3) | 1988 | $70,868 | $123,101 | 2024-06 | |
| Cambodian Outreach Project | International, foreign affairs and national security | 501(c)(3) | 1999 | $67,818 | $3,367 | 2024-12 |
| Godding Ditch Co | 501(c)(12) | 1935 | $67,519 | $188,130 | 2025-12 | |
| Rough & Ready Irrigating Ditch Company | 501(c)(12) | 1945 | $66,860 | $223,864 | 2025-12 | |
| Community Connections Project of Longmont | Education | 501(c)(3) | 2022 | $66,736 | $4,090 | 2025-12 |
| Fall River Communications Counsil | Education | 501(c)(3) | 2003 | $66,335 | $42,964 | 2025-06 |
| Longmont Emergency Unit Inc | 501(c)(3) | 1992 | $65,847 | $1.5 million | 2025-12 | |
| Longmont Rod and Gun Club | 501(c)(7) | 1976 | $64,975 | $83,932 | 2025-12 | |
| The Las Animas Consolidated Canal Company | 501(c)(12) | 1992 | $64,829 | $1.1 million | 2024-12 | |
| Restorative Approaches To Intimate Violence | Crime and legal-related | 501(c)(3) | 2025 | $64,437 | $36,354 | 2025-12 |
| Longmont Supply Ditch Company | 501(c)(12) | 1934 | $63,340 | $98,746 | 2025-12 | |
| Global Peace Train | International, foreign affairs and national security | 501(c)(3) | 2009 | $63,292 | $7,066 | 2025-12 |
| Longmont Youth Symphony Inc | Arts, culture and humanities | 501(c)(3) | 2007 | $62,288 | $43,442 | 2025-06 |
| Rocky Mountain Riding Therapy | Recreation and sports | 501(c)(3) | 2004 | $61,228 | $28,355 | 2024-12 |
| Longs Peak Disc Golf Club | Recreation and sports | 501(c)(3) | 2025 | $59,870 | $15,086 | 2026-01 |
| Peak Research Institute Longmont Inc | Education | 501(c)(3) | 2015 | $59,127 | $39,090 | 2025-12 |
| Sunshine Club Inc | Health care | 501(c)(3) | 2011 | $57,971 | $686,227 | 2025-12 |
| Longmont Concert Band | Arts, culture and humanities | 501(c)(3) | 2006 | $57,181 | $31,475 | 2026-07 |
| Colorado Gymnastics Parents | Recreation and sports | 501(c)(3) | 1995 | $54,114 | $56,990 | 2025-06 |
| Centennial Pto | Education | 501(c)(3) | 2024 | $52,640 | $102,845 | 2025-06 |
| Raptor Activity Booster Club | Recreation and sports | 501(c)(3) | 2026 | $51,259 | $57,259 | 2025-06 |
| Knights of Columbus | 501(c)(8) | 1940 | $49,348 | $249,700 | 2025-12 | |
| Longmont Professional Firefighters Association | Employment | 501(c)(5) | 2024 | $42,831 | $194,119 | 2024-12 |
| Peaceworks Dances of Universal Peace North America | International, foreign affairs and national security | 501(c)(3) | 2005 | $41,182 | $240,218 | 2024-12 |
| Life in Balance Mind Body Spirit | Religion-related | 501(c)(3) | 2016 | $41,104 | $32,185 | 2025-12 |
| Mead Mavericks Boosters Inc | Community improvement and capacity building | 501(c)(3) | 2025 | $37,430 | $15,693 | 2024-12 |
| Longmont Rotary Charity Fund Inc | Community improvement and capacity building | 501(c)(3) | 2022 | $37,128 | $683,836 | 2025-12 |
| Dream Worthy | Community improvement and capacity building | 501(c)(3) | 2018 | $36,136 | $848,277 | 2024-12 |
| Longmont Twin Peaks Rotary Charity Fund Inc | 501(c)(3) | 1991 | $34,015 | $77,345 | 2025-06 | |
| Sigma Phi Epsilon Co Alpha | 501(c)(7) | 2020 | $33,863 | $308 | 2026-06 | |
| National Association of Letter Carriers | 501(c)(5) | 1944 | $31,184 | $21,370 | 2025-12 | |
| Front Range Hippotherapy Inc | Human services | 501(c)(3) | 2010 | $31,155 | $5,076 | 2024-12 |
| Consolidated Extension Canal Co | 501(c)(12) | 1992 | $28,264 | $459,909 | 2024-12 | |
| Sunrise Ministries Inc | Mental health and crisis intervention | 501(c)(3) | 1982 | $23,807 | $8,313 | 2025-12 |
| Empathy Theatre Project | Arts, culture and humanities | 501(c)(3) | 2021 | $23,639 | $32,799 | 2025-12 |
| La Roca Eterna | Religion-related | 501(c)(3) | 2022 | $21,311 | $568 | 2023-12 |
| Silver Creek Education Foundation | Education | 501(c)(3) | 2013 | $20,692 | $33,609 | 2025-06 |
| Cinch Rise Inc | Recreation and sports | 501(c)(3) | 2022 | $18,819 | $724 | 2024-12 |
| Karuna School Inc | Education | 501(c)(3) | 2024 | $17,852 | $230,678 | 2025-06 |
| Worldviews Calling & Culture Inc | Religion-related | 501(c)(3) | 2012 | $13,799 | $3.3 million | 2025-12 |
| Skyline Falcon Baseball | Recreation and sports | 501(c)(3) | 2006 | $8,178 | $1,483 | 2025-12 |
| South Tollgate Ditch Company | Environment | 501(c)(12) | 2019 | $5,420 | $13,735 | 2025-12 |
| Carbon Valley Chamber of Commerce | Community improvement and capacity building | 501(c)(6) | 2004 | $4,527 | $175,738 | 2025-12 |
| Lifting the Silenced A MST Resistance Coalition Inc | Mental health and crisis intervention | 501(c)(3) | 2025 | $3,584 | $162 | 2025-12 |
| Colorado Senior Pro Charity Rodeo Assoc Inc | Recreation and sports | 501(c)(3) | 1986 | $3,289 | $5,310 | 2025-12 |
| Niwot Ditch Company | Public and societal benefit | 501(c)(12) | 2024 | $3,181 | $229,234 | 2024-12 |
| Altona Preservation Alliance | Arts, culture and humanities | 501(c)(3) | 2021 | $2,720 | $4,259 | 2025-03 |
| Asett Co | Environment | 501(c)(3) | 2026 | $1,700 | $84 | 2025-12 |
| Intl Fantasy Gaming Society | 501(c)(7) | 1993 | $1,234 | $13,162 | 2026-03 | |
| Conner Water Users Association | Public and societal benefit | 501(c)(12) | 2006 | $967 | $320,205 | 2025-12 |
| Hacking Autism Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 2015 | $2 | $5,972 | 2024-12 |
| 2030 Mead Mavericks | Recreation and sports | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| 601 Transformation Ministries | 501(c)(3) | 1991 | ||||
| African Heritage Celebration | Human services | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Alpha Chi Omega Fraternity Inc | 501(c)(7) | 1964 | $0 | $0 | 2026-07 | |
| Alpine Elementary Pto | Education | 501(c)(3) | 2023 | $0 | $0 | 2025-06 |
| American Association of University Women | Education | 501(c)(4) | 2010 | $0 | $0 | 2026-06 |
| American Humanist Association | 501(c)(3) | 1980 | $0 | $0 | 2025-12 | |
| American Legion Auxiliary | 501(c)(19) | 1946 | $0 | $0 | 2026-06 | |
| American Rose Society | 501(c)(3) | 1983 | $0 | $0 | 2025-12 | |
| American Sewing Guild Inc | Arts, culture and humanities | 501(c)(3) | 1986 | |||
| Anasazi Trust | Community improvement and capacity building | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Ancestral Healing Circle | Public and societal benefit | 501(c)(3) | 2025 | $0 | $0 | 2024-12 |
| Ancient Free & Accepted Masons of Colorado | 501(c)(8) | 1941 | $0 | $0 | 2024-11 | |
| Ande Foundation | Crime and legal-related | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Andys House Inc | Mental health and crisis intervention | 501(c)(3) | 2018 | $0 | $0 | 2024-12 |
| Animal Kingdom Foundation | Animal-related | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Antique Aiplane Association of Colorado Charitable Trust | Arts, culture and humanities | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Antique Airplane Association of Colorado Inc | Education | 501(c)(3) | 2004 | $0 | $0 | 2025-12 |
| Apostolic Church in Jesus Name | 501(c)(3) | 1979 | ||||
| Aroma Therapy Registration Council | Community improvement and capacity building | 501(c)(6) | 2000 | $0 | $0 | 2025-12 |
| Ascent Vocals | Arts, culture and humanities | 501(c)(3) | 2020 | $0 | $0 | 2026-07 |
| Asian-Pacific Association of Longmont | Arts, culture and humanities | 501(c)(3) | 2015 | $0 | $0 | 2025-06 |
| Association for Vascular Access | Diseases, disorders and medical disciplines | 501(c)(6) | 2010 | $0 | $0 | 2024-12 |
| Aurora Ducks Youth Football & Development | Recreation and sports | 501(c)(3) | 2026 | |||
| Austin Shepherd Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| Autism Helping Autism | 501(c)(3) | 2016 | $0 | $0 | 2025-12 | |
| Behavioral Community Connections | Human services | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Beth Ami | Religion-related | 501(c)(3) | 1999 | |||
| Big Sky Parent Organization | Education | 501(c)(3) | 2026 | $0 | $0 | 2026-05 |
| Blue Mountain Elementary School Pto | Education | 501(c)(3) | 2024 | |||
| Blue Skies Society | Arts, culture and humanities | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Bodhisattva International Institute | Religion-related | 501(c)(3) | 2000 | |||
| Bonus Ditch Company | 501(c)(12) | 1996 | $0 | $0 | 2026-02 | |
| Book Arts League | Arts, culture and humanities | 501(c)(3) | 2001 | $0 | $0 | 2025-12 |
| Boulder County Church of Christ | 501(c)(3) | 1982 | ||||
| Boulder County Community Church | 501(c)(3) | 1964 | ||||
| Boulder County Estate Planning Council | 501(c)(6) | 1977 | $0 | $0 | 2025-12 | |
| Boulder County Mounted Search & Rescue | Environment | 501(c)(3) | 2002 | $0 | $0 | 2025-12 |
| Boulder Israeli Dance | Arts, culture and humanities | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Boulder School | 501(c)(3) | 1985 | $0 | $0 | 2025-12 | |
| Boulder and Weld Reservoir Company | 501(c)(12) | 1934 | ||||
| Boxer Club of Colorado | Community improvement and capacity building | 501(c)(7) | 2019 | $0 | $0 | 2025-12 |
| Braly Family Foundation | Education | 501(c)(3) | 2007 | $9.5 million | 2025-12 | |
| Brave New Life Project | Employment | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Bright Future Global Wings | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Buck for the Fallen | Public and societal benefit | 501(c)(3) | 2018 | $0 | $0 | 2023-12 |
| Bunyan Lateral Ditch Co | Environment | 501(c)(12) | 2025 | |||
| Burlington Elementary School Foundation Inc | Education | 501(c)(3) | 1997 | $0 | $0 | 2026-05 |
| Butte Irrigating and Milling Company | Mutual and membership benefit | 501(c)(12) | 2014 | $0 | $0 | 2025-12 |
| C R E A T E Globally | Mental health and crisis intervention | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Calvary Chapel of Longmont Colorado | 501(c)(3) | 1991 | ||||
| Calvary Christian Fellowship of Longmont | Religion-related | 501(c)(3) | 2003 | |||
| Cardinal Opportunities Inc | Education | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Caring About People | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2010 | $0 | $0 | 2025-12 |
| Celebration Christian Center | 501(c)(3) | 1964 | ||||
| Center for Genocide Research and Education | Public and societal benefit | 501(c)(3) | 2016 | $0 | $0 | 2025-06 |
| Central Parent Teacher Organization | Education | 501(c)(3) | 1997 | $0 | $0 | 2025-06 |
| Centre for Rural Development - Africa | International, foreign affairs and national security | 501(c)(3) | 2014 | $0 | $0 | 2024-12 |
| Centro Cristiano Rios de Agua Viva | Religion-related | 501(c)(3) | 2004 | |||
| Centro Cristiano Vida Abundante | 501(c)(3) | 1964 | ||||
| Chabad Jewish Center of Longmontinc | Religion-related | 501(c)(3) | 2008 | |||
| Chefs for Schools Inc | Food, agriculture and nutrition | 501(c)(3) | 2010 | $0 | $0 | 2025-06 |
| Chicago Instructional Technology Foundation Inc | Arts, culture and humanities | 501(c)(4) | 2001 | 2024-03 | ||
| Childrens Umbrella Outreach | Religion-related | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Choral Forge | Arts, culture and humanities | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Christ Our Savior Lutheran Church | 501(c)(3) | 1941 | ||||
| Christian Promise Fellowship | Religion-related | 501(c)(3) | 2019 | |||
| Church Development Ministries Inc | Religion-related | 501(c)(3) | 1994 | $0 | $0 | 2025-12 |
| Citizens Commission On Human Rights | 501(c)(3) | 1993 | $0 | $0 | 2025-12 | |
| Civicpride | Public and societal benefit | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Clover Ridge Farm Animal Sanctuary Inc | Animal-related | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Colorado 4-H Foundation Inc | 501(c)(3) | 2013 | ||||
| Colorado 4-H Foundation Inc | 501(c)(3) | 2013 | ||||
| Colorado 4-H Foundation Inc | 501(c)(3) | 2013 | $0 | $0 | 2025-06 | |
| Colorado 4-H Foundation Inc | 501(c)(3) | 2013 | $0 | $0 | 2025-06 | |
| Colorado 4-H Foundation Inc | 501(c)(3) | 2013 | $0 | $0 | 2025-06 | |
| Colorado 4-H Foundation Inc | 501(c)(3) | 2013 | $0 | $0 | 2025-06 | |
| Colorado 4-H Foundation Inc | 501(c)(3) | 2013 | $0 | $0 | 2022-06 | |
| Colorado 4-H Foundation Inc | 501(c)(3) | 2013 | $0 | $0 | 2022-06 | |
| Colorado 4-H Foundation Inc | 501(c)(3) | 2013 | $0 | $0 | 2025-06 | |
| Colorado 4-H Foundation Inc | 501(c)(3) | 2013 | ||||
| Colorado 4-H Foundation Inc | 501(c)(3) | 2013 | $0 | $0 | 2025-06 | |
| Colorado 4-H Foundation Inc | 501(c)(3) | 2013 | $0 | $0 | 2021-06 | |
| Colorado 4-H Foundation Inc | 501(c)(3) | 2013 | $0 | $0 | 2023-06 | |
| Colorado 4-H Foundation Inc | 501(c)(3) | 2013 | ||||
| Colorado 4-H Foundation Inc | 501(c)(3) | 2013 | ||||
| Colorado 4-H Foundation Inc | 501(c)(3) | 2013 | $0 | $0 | 2025-06 | |
| Colorado 4-H Foundation Inc | 501(c)(3) | 2013 | $0 | $0 | 2025-06 | |
| Colorado 4-H Foundation Inc | 501(c)(3) | 2013 | $0 | $0 | 2024-06 | |
| Colorado 4-H Foundation Inc | 501(c)(3) | 2013 | $0 | $0 | 2021-06 | |
| Colorado 4-H Foundation Inc | 501(c)(3) | 2013 | $0 | $0 | 2025-06 | |
| Colorado 4-H Foundation Inc | 501(c)(3) | 2013 | $0 | $0 | 2025-06 | |
| Colorado 4-H Foundation Inc | 501(c)(3) | 2013 | ||||
| Colorado 4-H Foundation Inc | 501(c)(3) | 2013 | $0 | $0 | 2025-06 | |
| Colorado 4-H Foundation Inc | 501(c)(3) | 2013 | $0 | $0 | 2025-06 | |
| Colorado 4-H Foundation Inc | 501(c)(3) | 2013 | $0 | $0 | 2025-06 | |
| Colorado Alpha Sigep Avc Inc | Education | 501(c)(7) | 2025 | $0 | $0 | 2026-06 |
| Colorado Association of Middle Level Education | Education | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Colorado Breast Cancer Coalition | Diseases, disorders and medical disciplines | 501(c)(3) | 1995 | $0 | $0 | 2023-12 |
| Colorado Comets Sports Association | Youth development | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Colorado Dober Society Inc | Public and societal benefit | 501(c)(3) | 2017 | $0 | $0 | 2024-12 |
| Colorado Moose Council of Higher Degrees | 501(c)(8) | 1940 | $0 | $0 | 2026-04 | |
| Colorado Reptile Humane Society | Animal-related | 501(c)(3) | 1999 | $0 | $0 | 2025-12 |
| Colorado Science Convention | Community improvement and capacity building | 501(c)(6) | 2011 | $0 | $0 | 2025-12 |
| Colorado State Grange Patrons of Husbandry | 501(c)(5) | 1946 | $0 | $0 | 2025-08 | |
| Colorado Steel Erectors Association | Arts, culture and humanities | 501(c)(6) | 2012 | $0 | $0 | 2025-12 |
| Colorado Suns With Special Needs | Recreation and sports | 501(c)(3) | 2006 | $0 | $0 | 2025-12 |
| Colorado Tennis Cricket League | Recreation and sports | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Colorado Vocal Jazz Society Inc | 501(c)(3) | 1983 | $0 | $0 | 2025-12 | |
| Colorado Wyoming Writing Centers Association | Education | 501(c)(3) | 2016 | $0 | $0 | 2023-06 |
| Colorodans Inc | Recreation and sports | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Combat Veterans Motorcycle Association 3-4 | Arts, culture and humanities | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Commonsensetodayorg | Civil rights, social action and advocacy | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Community Cares LTD | Public and societal benefit | 501(c)(3) | 2019 | $0 | $0 | 2024-12 |
| Community Connections of Colorado | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2013 | $0 | $0 | 2023-12 |
| Community Immunity | Human services | 501(c)(3) | 2016 | $0 | $0 | 2024-12 |
| Community of Marpa House | Human services | 501(c)(3) | 2011 | $0 | $0 | 2024-12 |
| Comunidad Adullam | Religion-related | 501(c)(3) | 2025 | |||
| Conservation Easement Preservation Society | Environment | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Contexture Learning | Education | 501(c)(3) | 2022 | $0 | $0 | 2025-06 |
| County Collectives Inc | Youth development | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Culver Lateral Ditch Co | 501(c)(12) | 1969 | $0 | $0 | 2025-12 | |
| D F Halton Foundation Inc | 501(c)(3) | 1988 | $6.5 million | 2024-12 | ||
| Dance Team Supporting Our Stars | Recreation and sports | 501(c)(3) | 2006 | $0 | $0 | 2026-06 |
| Daniel Michael Jones Memorial Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2014 | $0 | $0 | 2025-11 |
| Destiny Ranch Inc | Youth development | 501(c)(3) | 2005 | $0 | $0 | 2025-12 |
| Digna Global Inc | Community improvement and capacity building | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Dodge Family Fund | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2015 | $16,087 | 2024-12 | |
| Don and Carol Schmidgall Family Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2008 | $486,462 | 2025-12 | |
| Dorje Trawang Ling A Nonprofit Corp | Religion-related | 501(c)(3) | 1996 | |||
| Dougherty Museum | 501(c)(3) | 1993 | $1.1 million | 2024-12 | ||
| Downtown Longmont Community Ventures | Arts, culture and humanities | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Draw Ministries | Religion-related | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Dreambridge Africa | Employment | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Druidawn Academy Inc | Education | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Drukpa Mila Center | Religion-related | 501(c)(3) | 2005 | $0 | $0 | 2025-12 |
| Dry Creek-Davidson Ditch Company | Food, agriculture and nutrition | 501(c)(12) | 2026 | |||
| Eaa Chapter 648 - Longmont Colorado | Education | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Eagle Crest Elementary Parent Teacher Organization | Education | 501(c)(3) | 2000 | $0 | $0 | 2026-06 |
| Earth Angels Act | Human services | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| East Boulder County Artists | Arts, culture and humanities | 501(c)(3) | 2002 | $0 | $0 | 2026-08 |
| East Boulder Ditch Company the 1155 Canyon Boulevard | 501(c)(12) | 1938 | $0 | $0 | 2025-12 | |
| Echo Unleashed | Religion-related | 501(c)(3) | 2021 | |||
| Eisele Lateral Ditch Company | 501(c)(12) | 1969 | $0 | $0 | 2025-12 | |
| Eleetu | Arts, culture and humanities | 501(c)(3) | 2025 | |||
| Elim Tabernacle of Christ | Religion-related | 501(c)(3) | 1999 | |||
| Eliyahu Ministries Internationalinc | Religion-related | 501(c)(3) | 2008 | $0 | $0 | 2025-12 |
| Encore | Mental health and crisis intervention | 501(c)(3) | 2014 | $223,266 | 2024-12 | |
| Endevr Foundation | Recreation and sports | 501(c)(3) | 2023 | $0 | $0 | 2023-12 |
| Ensemble Charite | Arts, culture and humanities | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Enterprise Irrigating Ditch Company 1155 Canyon BLVD | 501(c)(12) | 1981 | $0 | $0 | 2025-12 | |
| Envision Life Consortium | Community improvement and capacity building | 501(c)(3) | 2018 | $0 | $0 | 2025-06 |
| Epienergetics Foundation | Diseases, disorders and medical disciplines | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Epiphany Anglican Church | Religion-related | 501(c)(3) | 2026 | |||
| Epstein Family Foundation | 501(c)(3) | 1988 | $382,685 | 2025-10 | ||
| Equanimity Foundation | Human services | 501(c)(3) | 2026 | |||
| Equine Network Foundation Inc | Animal-related | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Essence of Life Apostolic Church of Boulder | Religion-related | 501(c)(3) | 2014 | |||
| Estelle Center for Creative Arts | Arts, culture and humanities | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Executive Committee African American Cultural Events | Civil rights, social action and advocacy | 501(c)(3) | 2025 | $0 | $0 | 2024-12 |
| Faith Community Lutheran Church | Religion-related | 501(c)(3) | 2001 | |||
| Faithpoint - A Baptist Church | 501(c)(3) | 1972 | ||||
| Firehouse Ministries LLC | Religion-related | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| Fireside | Religion-related | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| First Ascent Foundation | Environment | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| First Baptist Church | 501(c)(3) | 1955 | ||||
| First Evangelical Lutheran Church | 501(c)(3) | 1988 | 2013-12 | |||
| Foundation for A Better Economy | Education | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Foundation for Bridging Hearts | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Four Directions Pet Coalition Inc | Animal-related | 501(c)(3) | 2019 | $0 | $0 | 2024-12 |
| Freedom Pizza Co | International, foreign affairs and national security | 501(c)(3) | 2022 | $0 | $0 | 2024-01 |
| Freewheel Movement | Recreation and sports | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Friends of Belle-Riviere Inc | Human services | 501(c)(3) | 2008 | $0 | $0 | 2025-12 |
| Friends of Carbon Valley Scouting | Youth development | 501(c)(3) | 2022 | $0 | $0 | 2023-12 |
| Friends of Longmont Youth Center | Education | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Friends of Vance Brand Airport Inc | Education | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Friendship Circle of Boulder County | International, foreign affairs and national security | 501(c)(3) | 2007 | $0 | $0 | 2025-12 |
| From Nest To Wings Inc | Education | 501(c)(3) | 2018 | $0 | $0 | 2025-06 |
| Front Range Coin Club | Mutual and membership benefit | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Full Gospel Fellowship of Churches and Ministers Intl Inc | 501(c)(3) | 1964 | ||||
| Full Gospel Tabernacle | 501(c)(3) | 1974 | ||||
| GSR Impact | Arts, culture and humanities | 501(c)(3) | 2026 | |||
| Generations Bible Fellowship | Religion-related | 501(c)(3) | 1999 | |||
| Ghosttown Charities | Youth development | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Golden Sun Foundation for World Culture | Arts, culture and humanities | 501(c)(3) | 2003 | $0 | $0 | 2025-12 |
| Goldfish Volleyball Club Inc | Recreation and sports | 501(c)(3) | 2026 | |||
| Goodtimes Dance Club | Recreation and sports | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Grace Apostolic Church of Co | Religion-related | 501(c)(3) | 2025 | |||
| Grace Evangelical Free Church of Longmont Co | 501(c)(3) | 1965 | ||||
| Grass Green Recovery Support | Mental health and crisis intervention | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Green Ditch Company | Public and societal benefit | 501(c)(12) | 2014 | $0 | $0 | 2025-12 |
| Grey Havens Group Inc | Arts, culture and humanities | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Habitat for Humanity of the St Vrain Valley Community Housing Dev | Housing and shelter | 501(c)(3) | 2019 | $0 | $0 | 2026-06 |
| Hadley and Marion Stuart Foundation | 501(c)(3) | 1988 | $107.7 million | 2025-10 | ||
| Hainline Family Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2002 | $7,454 | 2025-12 | |
| Healing Souls Ranch | Animal-related | 501(c)(3) | 2025 | $0 | $0 | 2024-12 |
| Hellenbach Castle Foundation | Community improvement and capacity building | 501(c)(3) | 2014 | $0 | $0 | 2025-04 |
| Help Heal Hunger Inc | Education | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| High Hope Haven | Youth development | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Higher Ed Abroad Inc | 501(c)(3) | 2023 | $0 | $0 | 2025-12 | |
| His Works Kazi Yake | Religion-related | 501(c)(3) | 2008 | $0 | $0 | 2025-12 |
| Hispanic Education Foundation Inc | 501(c)(3) | 1989 | $0 | $0 | 2025-12 | |
| Hobby for Everyone Inc | Education | 501(c)(3) | 2023 | $1 | 2025-12 | |
| Hoe and Hope Garden Club Inc | Environment | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| Home Team Supported Case Management | Housing and shelter | 501(c)(3) | 2024 | |||
| Hope Source Global Inc | Religion-related | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Horsfall Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2010 | $387,765 | 2025-12 | |
| Human Institute | Science and technology | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Hutchinson Bell Inc | Education | 501(c)(3) | 2015 | |||
| Hye Aero Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2026 | |||
| Hygiene Pto Inc | Education | 501(c)(3) | 1995 | $0 | $0 | 2025-09 |
| Iamamaker-Org | Human services | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Iglesia Apostolica Monte de Bendicion Inc | Religion-related | 501(c)(3) | 2022 | |||
| Iglesia de Cristo Mi-El Longmont | Religion-related | 501(c)(3) | 2005 | |||
| Imaginasl Performing Arts | Arts, culture and humanities | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| In Him Bible Church and Outreachministry | Religion-related | 501(c)(3) | 2008 | |||
| In the Masters Steps | Health care | 501(c)(3) | 2015 | $0 | $0 | 2024-12 |
| Inclusive Acres Boulder County | Human services | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Indian Association of Rockies | Arts, culture and humanities | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Indigo Impact Initiative | Employment | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Institute To Honor Freedom of Conscience | Civil rights, social action and advocacy | 501(c)(3) | 2009 | $0 | $0 | 2026-03 |
| Institute for Experiential Brainbody Research | Medical research | 501(c)(3) | 2006 | $0 | $0 | 2025-12 |
| Interfaith Interface Inc | Religion-related | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Interfaith Quilters of Longmont Co Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2005 | $0 | $0 | 2024-12 |
| International Association of Lions Clubs | 501(c)(4) | 1940 | $0 | $0 | 2025-06 | |
| International Cystinuria Foundation Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 2006 | $0 | $0 | 2026-07 |
| Isc2 Boulder Chapter Inc | Education | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Islamic Center of Longmont | Religion-related | 501(c)(3) | 2026 | |||
| James Ditch Company | 501(c)(12) | 1971 | $0 | $0 | 2026-02 | |
| Jasmines Temple | Education | 501(c)(3) | 2026 | |||
| Journey | 501(c)(3) | 1975 | ||||
| Joyforward | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $315 | 2024-12 | |
| Kids Can Colorado | Youth development | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Kiwanis Club of Longmont Foundation | 501(c)(3) | 1998 | $0 | $0 | 2025-09 | |
| Kiwanis International Inc | 501(c)(4) | 1940 | $0 | $0 | 2025-09 | |
| Knights of Columbus | 501(c)(8) | 1940 | $0 | $0 | 2025-12 | |
| Know Your Skin Initiative | Health care | 501(c)(3) | 2026 | |||
| Kreative Arts Therapy Institute | Arts, culture and humanities | 501(c)(3) | 2005 | $0 | $0 | 2026-03 |
| LHS Mega Reunions Inc | Recreation and sports | 501(c)(3) | 2024 | $0 | $0 | 2025-06 |
| La Familia Boxing | Youth development | 501(c)(3) | 2016 | $0 | $0 | 2024-12 |
| La Isla Boxing Club | Recreation and sports | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| La Leche League International Inc | 501(c)(3) | 1979 | $0 | $0 | 2025-03 | |
| Lake Ditch Co | Youth development | 501(c)(12) | 2011 | $0 | $0 | 2025-10 |
| Last Chance Ditch Co | 501(c)(12) | 1945 | $0 | $0 | 2025-12 | |
| Left Hand Artist Group | Arts, culture and humanities | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Liberty Ears Inc | Health care | 501(c)(3) | 2022 | $48 million | 2024-12 | |
| Life House Covenant Church Longmont | 501(c)(3) | 1975 | ||||
| Lifebridge Christian Church | 501(c)(3) | 1982 | 2024-12 | |||
| Light of Christ Ecumenical Catholic Community | Religion-related | 501(c)(3) | 2008 | |||
| Longmont Aauw Inc | Education | 501(c)(3) | 2021 | $0 | $0 | 2026-06 |
| Longmont Aircraft Modelers | Recreation and sports | 501(c)(7) | 2024 | $0 | $0 | 2023-12 |
| Longmont All Star Jazz Band | Arts, culture and humanities | 501(c)(3) | 2026 | $0 | $0 | 2026-07 |
| Longmont Amateur Radio Club Inc | Arts, culture and humanities | 501(c)(3) | 1993 | $0 | $0 | 2025-09 |
| Longmont Artists Guild | Arts, culture and humanities | 501(c)(3) | 2010 | $0 | $0 | 2025-08 |
| Longmont Astronomical Society | Education | 501(c)(3) | 2000 | $0 | $0 | 2025-12 |
| Longmont Buddhist Temple | Religion-related | 501(c)(3) | 2015 | |||
| Longmont Chapter No 1211 Women of the Moose | 501(c)(8) | 1935 | $0 | $0 | 2026-04 | |
| Longmont Christian Fellowship | 501(c)(3) | 1979 | ||||
| Longmont Church of the Nazarene | 501(c)(3) | 1963 | ||||
| Longmont Columbine Trust | Education | 501(c)(3) | 2009 | $0 | $0 | 2025-06 |
| Longmont Combined HS Hockey Club | Recreation and sports | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Longmont Community Radio | Arts, culture and humanities | 501(c)(3) | 2004 | $0 | $0 | 2024-12 |
| Longmont Congregation of Jehovahs Witnesses | 501(c)(3) | 1971 | ||||
| Longmont Electric Aircraft Flyers Inc | Recreation and sports | 501(c)(7) | 2019 | $0 | $0 | 2025-12 |
| Longmont Estates Elementary School Pto | Education | 501(c)(3) | 2004 | $0 | $0 | 2024-07 |
| Longmont Explorer Program | Youth development | 501(c)(3) | 2017 | $0 | $0 | 2024-12 |
| Longmont Genealogical Society Inc | Education | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Longmont High School Booster Club Inc | Education | 501(c)(3) | 2005 | $0 | $0 | 2023-09 |
| Longmont High School Education Foundation Inc | 501(c)(3) | 1993 | $0 | $0 | 2025-12 | |
| Longmont Police K9 Association | Human services | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Longmont Quilt Guild | Arts, culture and humanities | 501(c)(3) | 2007 | $0 | $0 | 2025-12 |
| Longmont Sister Cities Association | International, foreign affairs and national security | 501(c)(3) | 1998 | $0 | $0 | 2024-12 |
| Longmont Tennis Association | Recreation and sports | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Longmont Triangle Club Inc | 501(c)(3) | 1986 | $0 | $0 | 2025-12 | |
| Longmont Youth Sports Organization | Recreation and sports | 501(c)(3) | 2009 | $0 | $0 | 2025-12 |
| Longs Peak Hospital | Health care | 501(c)(3) | 2018 | |||
| Longs Peak Southern Baptist Church | 501(c)(3) | 1964 | ||||
| Lower Oligarchy Ditch Co | 501(c)(12) | 1945 | $0 | $0 | 2025-12 | |
| Maccabee Project Inc | Arts, culture and humanities | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Magi Project | Education | 501(c)(3) | 2023 | $0 | $0 | 2023-12 |
| Magic Bridge Theatre Company | Arts, culture and humanities | 501(c)(3) | 2002 | $0 | $0 | 2024-12 |
| Manhattan Girls Chorus Inc | Youth development | 501(c)(3) | 2014 | $0 | $0 | 2023-12 |
| Mark Woodings Education Foundation | Education | 501(c)(3) | 2001 | $0 | $0 | 2025-12 |
| Matchsticks Bassoon Quartet | Arts, culture and humanities | 501(c)(3) | 2025 | $0 | $0 | 2026-01 |
| McGinn Ditch Company | Mutual and membership benefit | 501(c)(12) | 2025 | $0 | $0 | 2025-12 |
| McKay Lateral Ditch Company | 501(c)(12) | 1952 | $0 | $0 | 2025-12 | |
| Mead Rotary Foundation Inc | Education | 501(c)(3) | 2009 | $0 | $0 | 2025-06 |
| Medical Access Management | Health care | 501(c)(3) | 2024 | $0 | $0 | 2025-06 |
| Melendez Foundation | Human services | 501(c)(3) | 2018 | $0 | $0 | 2024-12 |
| Messengerz Dance Company | Arts, culture and humanities | 501(c)(3) | 2026 | |||
| Messiah Lutheran Church | 501(c)(3) | 1941 | 2013-06 | |||
| Mighty Yak Foundation | International, foreign affairs and national security | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Ministerios Mundiales Longmont Inc | 501(c)(3) | 1949 | ||||
| Mission Driven Strategy | Community improvement and capacity building | 501(c)(3) | 2015 | $11,468 | 2025-12 | |
| Moms Club | Human services | 501(c)(3) | 2001 | $0 | $0 | 2026-06 |
| Mountain Ancestors Grove Adf | 501(c)(3) | 1996 |
By cause in Longmont, CO
- Education 82
- Arts, culture and humanities 53
- Religion-related 53
- Human services 39
- Recreation and sports 34
- Animal-related 21
- Community improvement and capacity building 21
- Philanthropy, voluntarism and grantmaking foundations 19
- Environment 18
- Health care 15
- Mental health and crisis intervention 15
- Public and societal benefit 14
- Youth development 14
- Mutual and membership benefit 12
- International, foreign affairs and national security 12
- Housing and shelter 8
- Employment 8
- Food, agriculture and nutrition 8
- Diseases, disorders and medical disciplines 6
- Science and technology 5
- Civil rights, social action and advocacy 4
- Medical research 3
- Crime and legal-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.