Home Organizations Maine Every cause Civil rights and advocacy 25 Environment and climate 426 Labor unions and worker centers 104 Housing and homelessness 209 Immigrant services and rights 42 Food banks and hunger 133 Legal aid 9 Voting and civic participation 8 Community health and reproductive care 25 LGBTQ+ services and rights 5 Criminal justice reform and reentry 10 Civil rights and advocacy (25) Organization City Type Revenue American Civil Liberties Union Of Maine FoundationEIN 01-0367357 · filings Portland Charity, 501(c)(3) $2.7 million Elder Abuse Institute Of MaineEIN 04-3681346 · filings Brunswick Charity, 501(c)(3) $1.7 million Friends Of Fort KnoxEIN 01-0478281 · filings Prospect Charity, 501(c)(3) $762,869 Democracy MaineEIN 27-2646667 · filings Portland Charity, 501(c)(3) $575,882 Grandmothers For Reproductive RightsEIN 37-1946175 · filings Portland Charity, 501(c)(3) $346,613 Journalism New EnglandEIN 99-4676125 · filings Harpswell Charity, 501(c)(3) $327,570 Portland WheelersEIN 47-2690824 · filings Portland Charity, 501(c)(3) $250,403 Alpha Legal FoundationEIN 85-4349794 · filings Portland Charity, 501(c)(3) $151,565 Downeast Restorative JusticeEIN 87-2923854 · filings Penobscot Charity, 501(c)(3) $105,184 Sam IlaEIN 81-3912879 · filings Augusta Advocacy, 501(c)(4) $67,273 Maine Citizens Action For DemocracyEIN 33-3829230 · filings Scarborough Advocacy, 501(c)(4) $65,507 Equality MaineEIN 01-0491854 · filings Portland Advocacy, 501(c)(4) $48,276
The 25 largest →
Environment and climate (426) Organization City Type Revenue Coastal Maine Botanical Gardens IncEIN 01-0476545 · filings Boothbay Charity, 501(c)(3) $28.6 million Maine Coast Heritage TrustEIN 23-7099105 · filings Topsham Charity, 501(c)(3) $22.0 million Friends Of AcadiaEIN 01-0425071 · filings Bar Harbor Charity, 501(c)(3) $12.7 million BiodiversityEIN 01-0515381 · filings Portland Charity, 501(c)(3) $9.8 million Chewonki Foundation IncEIN 01-0269460 · filings Wiscasset Charity, 501(c)(3) $8.0 million Maine Audubon SocietyEIN 01-0248780 · filings Falmouth Charity, 501(c)(3) $6.0 million Reverb IncEIN 20-1042256 · filings Portland Charity, 501(c)(3) $5.7 million Frenchman Bay ConservancyEIN 22-2849309 · filings Hancock Charity, 501(c)(3) $5.4 million Rangeley Lakes Heritage Trust IncEIN 01-0472641 · filings Rangeley Charity, 501(c)(3) $5.0 million Hurricane Island Outward Bound SchoolEIN 04-6089174 · filings Camden Charity, 501(c)(3) $4.9 million Kittery Land Trust IncEIN 22-2858759 · filings Kittery Charity, 501(c)(3) $4.9 million Schoodic Institute At Acadia National ParkEIN 20-1054593 · filings Winter Harbor Charity, 501(c)(3) $4.9 million
The 300 largest →
Labor unions and worker centers (104) Organization City Type Revenue Maine Service Employees Asso Service Employees Int Union L 1989EIN 01-0204000 · filings Augusta Labor organization, 501(c)(5) $5.3 million International Brotherhood Of TeamstersEIN 01-0095740 · filings S Portland Labor organization, 501(c)(5) $3.1 million American Federation Of Labor & Congress Of Industrial OrgsEIN 01-0113840 · filings Augusta Labor organization, 501(c)(5) $2.9 million International Association Of Machinists & Aerospace WorkersEIN 52-1597968 · filings Lisbon Labor organization, 501(c)(5) $2.4 million Iam & Aw Local S 6EIN 01-0443436 · filings Bath Labor organization, 501(c)(5) $2.3 million International Brotherhood Of Electrical WorkersEIN 02-6011186 · filings Manchester Labor organization, 501(c)(5) $2.2 million International Brotherhood Of Electrical WorkersEIN 01-0226195 · filings Newport Labor organization, 501(c)(5) $1.2 million International Brotherhood Of Electrical WorkersEIN 01-0095705 · filings Lewiston Labor organization, 501(c)(5) $1.1 million International Brotherhood Of Electrical WorkersEIN 01-0288542 · filings Augusta Labor organization, 501(c)(5) $707,857 International Union United Auto Aerospace & Agricultural WorkersEIN 01-0531484 · filings Bath Labor organization, 501(c)(5) $671,112 United SteelworkersEIN 01-0346358 · filings Skowhegan Labor organization, 501(c)(5) $565,197 Maine Association Of PoliceEIN 51-0193590 · filings S Portland Labor organization, 501(c)(5) $409,594
The 104 largest →
Housing and homelessness (209) Organization City Type Revenue Maine Life Care Retirement Community IncEIN 01-0496258 · filings Scarborough Charity, 501(c)(3) $37.0 million New Communities IncEIN 81-5393817 · filings Westbrook Charity, 501(c)(3) $25.9 million Coastal Enterprises IncEIN 01-0347504 · filings Brunswick Charity, 501(c)(3) $19.9 million Jha Assisted Living IncEIN 20-1590379 · filings Portland Charity, 501(c)(3) $14.4 million Sha Development CorporationEIN 31-1699762 · filings Sanford Charity, 501(c)(3) $14.2 million Avesta Housing Development CorporationEIN 01-0315296 · filings Portland Charity, 501(c)(3) $13.5 million EvernorthEIN 85-1409438 · filings Portland Charity, 501(c)(3) $11.7 million Community Housing Of Maine IncEIN 01-0490195 · filings Portland Charity, 501(c)(3) $10.9 million Avesta Housing Management CorporationEIN 23-7356030 · filings Portland Charity, 501(c)(3) $10.9 million Seventy-five State StreetEIN 01-0211791 · filings Portland Charity, 501(c)(3) $10.5 million South Portland Housing Development CorporationEIN 22-2648277 · filings S Portland Charity, 501(c)(3) $7.3 million Bath Housing Development CorporationEIN 22-2618694 · filings Bath Charity, 501(c)(3) $7.2 million
The 209 largest →
Immigrant services and rights (42) Organization City Type Revenue Hope ActsEIN 45-4804770 · filings Portland Charity, 501(c)(3) $1.2 million Greater Portland Immigrant Welcome CenterEIN 82-2844735 · filings Portland Charity, 501(c)(3) $1.1 million Somali Bantu Community Association Of MaineEIN 27-0641210 · filings Lewiston Charity, 501(c)(3) $1.0 million Maine Access Immigrant NetworkEIN 30-0239409 · filings Portland Charity, 501(c)(3) $738,872 New England Arab American OrganizationEIN 47-5574330 · filings Portland Charity, 501(c)(3) $570,453 Khmer MaineEIN 88-0567344 · filings Portland Charity, 501(c)(3) $432,889 Maine Labor And Resource CenterEIN 86-3166974 · filings Lewiston Charity, 501(c)(3) $309,427 Way Of Life MissionEIN 26-4288782 · filings Portland Charity, 501(c)(3) — Ubuntu MinistriesEIN 26-4379573 · filings Old Orchd Bch Charity, 501(c)(3) — Somali Community Development Of MaineEIN 30-0230258 · filings Portland Charity, 501(c)(3) — The Fur Cultural RevivalEIN 33-1189926 · filings Portland Charity, 501(c)(3) — Northeast Community IntegrationEIN 33-2229015 · filings West Gardiner Charity, 501(c)(3) —
The 42 largest →
Food banks and hunger (133) Organization City Type Revenue Good Sheperd Food BankEIN 22-2986809 · filings Auburn Charity, 501(c)(3) $104.5 million Full Plates Full PotentialEIN 82-2032867 · filings Brunswick Charity, 501(c)(3) $10.9 million Trinity Jubilee Center IncEIN 01-0543294 · filings Lewiston Charity, 501(c)(3) $3.9 million Augusta Food BankEIN 01-0545734 · filings Augusta Charity, 501(c)(3) $3.7 million South Portland Food CupboardEIN 03-0550892 · filings S Portland Charity, 501(c)(3) $2.0 million Locker ProjectEIN 47-1257754 · filings Portland Charity, 501(c)(3) $1.7 million Cultivating CommunityEIN 04-3607322 · filings Portland Charity, 501(c)(3) $1.7 million Bar Harbor Food PantryEIN 80-0382871 · filings Bar Harbor Charity, 501(c)(3) $1.5 million Bridgton Food PantryEIN 84-2851490 · filings Bridgton Charity, 501(c)(3) $1.2 million Wayside Food ProgramsEIN 22-2806424 · filings Portland Charity, 501(c)(3) $1.0 million North Berwick Food PantryEIN 36-4837376 · filings North Berwick Charity, 501(c)(3) $790,963 Belfast Soup KitchenEIN 80-0617201 · filings Belfast Charity, 501(c)(3) $780,830
The 133 largest →
Legal aid (9) Organization City Type Revenue Pine Tree Legal Assistance IncEIN 01-0279387 · filings Portland Charity, 501(c)(3) $13.1 million Disability Rights MaineEIN 01-0351782 · filings Augusta Charity, 501(c)(3) $4.7 million Maine Justice FoundationEIN 22-2559133 · filings Augusta Charity, 501(c)(3) $4.1 million Legal Services For The Elderly IncEIN 01-0359131 · filings Augusta Charity, 501(c)(3) $3.5 million Immigrant Legal Advocacy ProjectEIN 22-3260883 · filings Portland Charity, 501(c)(3) $3.3 million Maine Equal Justice Partners IncEIN 04-3346273 · filings Augusta Charity, 501(c)(3) $2.8 million Vlp IncEIN 81-4176852 · filings Portland Charity, 501(c)(3) $1.7 million Muskie Fund For Legal ServicesEIN 01-0505878 · filings Portland Charity, 501(c)(3) $67,722 Gap Legal Services IncEIN 47-1495124 · filings Gardiner Charity, 501(c)(3) —
Voting and civic participation (8) Organization City Type Revenue Democracy MaineEIN 27-2646667 · filings Portland Charity, 501(c)(3) $575,882 Movement Technology Institute IncEIN 02-0572330 · filings Naples Charity, 501(c)(3) — Street Disciples Greater Portland MaineEIN 47-4895688 · filings Portland Charity, 501(c)(3) — Progressive PortlandEIN 81-5055834 · filings Portland Advocacy, 501(c)(4) — Friends Of PathwaysEIN 82-0559165 · filings Camden Charity, 501(c)(3) — Mike And Heidi Community FundEIN 82-1869031 · filings Bucksport Charity, 501(c)(3) — New American Resource CenterEIN 88-2387548 · filings Lewiston Charity, 501(c)(3) — Citizens For Bulgaria IncEIN 99-5008657 · filings Orono Charity, 501(c)(3) —
Community health and reproductive care (25) Organization City Type Revenue Martins Point Health Care IncEIN 01-0353275 · filings Portland Charity, 501(c)(3) $617.9 million Penobscot Community Health CenterEIN 01-0514750 · filings Bangor Charity, 501(c)(3) $102.9 million Katahdin Valley Health CenterEIN 23-7411014 · filings Patten Charity, 501(c)(3) $34.6 million Portland Community Health CenterEIN 45-4960453 · filings South Portland Charity, 501(c)(3) $25.4 million Health Access Network IncEIN 11-3650708 · filings Lincoln Charity, 501(c)(3) $14.4 million Family Planning Association Of Maine IncEIN 01-0317679 · filings Augusta Charity, 501(c)(3) $12.9 million Community Clinical Services IncEIN 01-0409788 · filings Lewiston Charity, 501(c)(3) $12.7 million Eastport Health Care IncEIN 01-0354589 · filings Eastport Charity, 501(c)(3) $8.1 million Harrington Family Health CenterEIN 01-0409494 · filings Harrington Charity, 501(c)(3) $4.4 million Islands Community Medical Services IncEIN 01-6012835 · filings Vinalhaven Charity, 501(c)(3) $4.0 million Boothbay Region Health Care IncEIN 46-5271171 · filings Boothbay Hbr Charity, 501(c)(3) $535,706 Birth Roots IncEIN 20-1803650 · filings Portland Charity, 501(c)(3) $334,190
The 25 largest →
LGBTQ+ services and rights (5) Organization City Type Revenue Trans Youth Equality FoundationEIN 27-2952308 · filings Bangor Charity, 501(c)(3) $92,486 Equality MaineEIN 01-0491854 · filings Portland Advocacy, 501(c)(4) $48,276 Gorham PrideEIN 33-2016591 · filings Gorham Charity, 501(c)(3) — Pride AroostookEIN 93-4486114 · filings Presque Isle Charity, 501(c)(3) — Windham And Raymond PrideEIN 93-4752113 · filings Windham Charity, 501(c)(3) —
Criminal justice reform and reentry (10) Organization City Type Revenue Maine Prisoner Re-entry NetworkEIN 84-2071370 · filings Auburn Charity, 501(c)(3) $750,707 Maine Youth CourtEIN 87-3958747 · filings Portland Charity, 501(c)(3) $340,072 Maine Prisoner Advocacy CoalitionEIN 27-2861615 · filings Lisbon Charity, 501(c)(3) $285,648 Moving Forward For Maine Reentry Sisters CorporationEIN 93-2673364 · filings Portland Charity, 501(c)(3) $209,326 Maine Human Rights Coalition IncEIN 26-1544190 · filings Old Town Charity, 501(c)(3) — Maine Skilled Trades InitiativeEIN 33-3862341 · filings Newcastle Charity, 501(c)(3) — Penobscot Bay MinistriesEIN 34-2049602 · filings Rockland Charity, 501(c)(3) — Turn The Page MaineEIN 39-2259895 · filings Bath Charity, 501(c)(3) — Sentence To SuccessEIN 41-2907689 · filings Howland Charity, 501(c)(3) — Columbia Street ProjectEIN 46-5463772 · filings Bangor Charity, 501(c)(3) —
Matched by IRS activity code and listed by the revenue on the organization's latest return. Inclusion is not an endorsement; check an organization's own site and filings before you give. Gifts to 501(c)(4) and 501(c)(5) organizations are not tax-deductible.
Source: IRS Exempt Organizations Business Master File . Updated Nov 9, 2026.