| H2H Vets IncWest Springfield | Form 990-N | No figure |
| Wakefield Wild Rabbit Rehabilitation IncWakefield | Form 990-N | No figure |
| Fitness Connectors Dog Rescue IncDudley | Form 990-N | No figure |
| Squirrel Run Wildlife RehabilitationHolbrook | Form 990-N | No figure |
| Mill Farm Sanctuary IncNeedham | Form 990-N | No figure |
| Libertyland Axolotl RescueNew Bedford | Form 990-N | No figure |
| Friends of the Southwick Dog Park IncSouthwick | Form 990-N | No figure |
| Rubber Ducky Transportation IncLunenburg | Form 990-N | No figure |
| Gatos BorincoonFranklin | Form 990-N | No figure |
| Speak Up for Animals IncSwampscott | Form 990-N | No figure |
| Uncommon Rescue IncAmesbury | Form 990-N | No figure |
| Four Paws Pet Pantry IncSwansea | Form 990-N | No figure |
| Papi & Co Rescue FoundationQuincy | Form 990-N | No figure |
| Litterbox FoundationMedway | Form 990-N | No figure |
| Furever in Him Retirement Ranch and Retreat IncPepperell | Form 990-N | No figure |
| SnugtailpettherapyAttleboro | Form 990-N | No figure |
| Hidden Acres SanctuaryWestford | Form 990-N | No figure |
| Worcester County Kennel Club IncSterling | Form 990-N | No figure |
| African Elephant Conservation TrustNewburyport | Form 990-N | No figure |
| Alice Manning Trust Ua Fbo American Humane Education SocietyBoston | None required | No figure |
| Breezing HomeHarvard | Form 990-N | No figure |
| American Speciality of Veterinary E CC IncNorth Grafton | Form 990-N | No figure |
| Thank God for Dogs IncByfield | Form 990-N | No figure |
| Global Veterinary Fund IncChicopee | Form 990-N | No figure |
| Wicked Good Dogs Charity IncSouth Dennis | Form 990-N | No figure |
| Polar Bear Preservation League IncBoston | Form 990-N | No figure |
| Oceanic Freedom Society IncCambridge | Form 990-N | No figure |
| Earth Angel Guardians Animal Rescue IncorporatedCarver | Form 990-N | No figure |
| Off-Leash Second ChanceDuxbury | Form 990-N | No figure |
| Steven M Schafer Memorial Scholarship FundNorth Billerica | Form 990-N | No figure |
| Roam Africa ConservationWilliamstown | Form 990-N | No figure |
| Legacy Equine Center and Sanctuary IncEasthampton | Form 990-N | No figure |
| Konkapot Apiary IncStockbridge | Form 990-N | No figure |
| Jax & Bash Foundation for Pets and Their People IncMilford | Form 990-N | No figure |
| New England Samoyed RescuePalmer | Form 990-N | No figure |
| A Roof TogetherWinthrop | Form 990-N | No figure |
| Moragas Mutts IncGeorgetown | Form 990-N | No figure |
| Frankies Promise to Paws FoundationBeverly | Form 990-N | No figure |
| Piggy Overnight Camp IncArlington | Form 990-N | No figure |
| Cif Wildlife Rehabilitation IncHarvard | Form 990-N | No figure |
| Comfort Care Foundation for Pets IncJamaica Plain | Form 990-N | No figure |
| Echo for Animals IncFitchburg | Form 990-N | No figure |
| NsquaredPrinceton | Form 990-N | No figure |
| The Paws and People CorporationWorcester | Form 990-N | No figure |
| Central Mass Veterinary Emergency and Advanced Care IncHolden | Form 990 or 990-EZ | No figure |
| A Salute to Soldiers Foundation IncSpringfield | Form 990-N | No figure |
| K9 CruiserWestminster | Form 990-N | No figure |
| Flora and Fauna Wildlife Rehabilitation IncSouth Hadley | Form 990-N | No figure |
| Libby Fund IncFeeding Hills | Form 990-N | No figure |
| Old Acquaintance RescueGroveland | Form 990-N | No figure |