| Thomas J Oconnor Animal Control Andadoption Center Foundation IncSpringfield | Form 990 | $626,383FY2025 |
| Quincy Animal Shelter IncQuincy | Form 990 | $618,371FY2025 |
| Winslow Farm Animal Awareness CorpNorton | Form 990 | $577,635FY2024 |
| Leatherback Project IncNorfolk | Form 990 | $569,871FY2024 |
| Gal S Best Pal IncorporatedSaugus | Form 990 | $569,801FY2024 |
| Animal Shelter of Martha S Vineyard IncEdgartown | Form 990 | $555,762FY2025 |
| Marthas Vineyard Shellfish Group IncOak Bluffs | Form 990 | $549,725FY2025 |
| House Rabbit Network IncWestford | Form 990 | $540,511FY2025 |
| African Aquatic Conservation Fund IncChilmark | Form 990 | $534,989FY2025 |
| Bethel Institute for Community DevelopmentJamaica Plain | Form 990 | $497,956FY2023 |
| Paniscus ProjectCambridge | Form 990 | $494,006FY2024 |
| Homefarm at Undermountain IncLenox | Form 990 | $486,908FY2024 |
| Dog Aging InstituteJamaica Plain | Form 990 | $482,062FY2024 |
| Gloucester Fishermans Wives Development Programs IncGloucester | Form 990 | $470,486FY2024 |
| TCC Cat RescueWaltham | Form 990 | $452,094FY2024 |
| French Bulldog Rescue Network a Nonprofit CorporationBoston | Form 990 | $449,069FY2024 |
| New England Equine Rescue - NorthWest Newbury | Form 990 | $438,616FY2025 |
| Metro West Humane Society IncFramingham | Form 990 | $421,999FY2024 |
| Pat Brody Shelter for Cats IncLunenburg | Form 990 | $415,503FY2025 |
| Golden Opportunities for IndependenceWalpole | Form 990 | $414,268FY2024 |
| Sandy Paws Rescue IncVineyard Haven | Form 990 | $391,127FY2024 |
| Salt Pond Areas Bird Sanctuaries IncWest Falmouth | Form 990 | $377,160FY2024 |
| Carrie a Seaman Animal Shelter IncProvincetown | Form 990 | $376,429FY2025 |
| Kitty Angels IncTyngsborough | Form 990 | $362,359FY2025 |
| Project ComebackNorfolk | Form 990 | $362,164FY2025 |
| United Professional Horsemens Association Chapter 14 IncHalifax | Form 990 | $360,101FY2024 |
| Medfield Animal Shelter IncMedfield | Form 990 | $354,865FY2024 |
| Lobster Foundation of Massachusetts IncScituate | Form 990 | $353,864FY2025 |
| Westfield Homeless Cat ProjectWestfield | Form 990 | $350,652FY2024 |
| Forever Home Rescue New EnglandMedfield | Form 990 | $349,755FY2024 |
| Dog Orphans IncDouglas | Form 990 | $347,577FY2025 |
| Milford Humane Society IncMilford | Form 990 | $333,021FY2025 |
| New England Old English Sheepdog Rescue IncLincoln | Form 990 | $331,686FY2024 |
| Kitty Connection IncorporatedMedford | Form 990 | $328,920FY2025 |
| Mutt Rescue IncChicopee | Form 990 | $325,030FY2024 |
| Buddy & Friends Animal RescuePembroke | Form 990 | $317,937FY2025 |
| Broken Tail Rescue IncMillbury | Form 990 | $317,113FY2024 |
| Brown Dog Coalition and Rescue LimitedHopkinton | Form 990 | $314,176FY2025 |
| Here Today Adopted Tomorrow Animal Sanctuary IncBrimfield | Form 990 | $313,379FY2024 |
| Canines for Disabled Kids IncWorcester | Form 990 | $304,758FY2025 |
| Lets Save the Strays International IncWayland | Form 990 | $298,803FY2025 |
| The Sampson Fund for Veterinary Care IncOrleans | Form 990 | $292,912FY2025 |
| Better Together Dog Rescue IncLeverett | Form 990 | $285,886FY2024 |
| North American Wolf Foundation IncIpswich | Form 990 | $275,979FY2024 |
| Sowa Goat SanctuaryHarvard | Form 990 | $261,949FY2025 |
| Pawfect Life Rescue IncUxbridge | Form 990 | $252,971FY2025 |
| Friends of the Franklin County Regional Dog ShelterTurners Falls | Form 990 | $252,955FY2025 |
| Animal Welfare Fund IncSalem | Form 990 | $248,783FY2025 |
| Neady Cats CorpWest Boylston | Form 990 | $245,202FY2025 |
| Stray Pets in Need of Massachusetts IncNatick | Form 990 | $245,090FY2024 |