Here are a list of shelters, rescue groups and animal welfare organizations signed up so far to participate in this year's festival: 

Massachusetts Animal Coalition
New Beginnings Dog Rescue
Pet Matchmaker Rescue
Northeastern Boxer Rescue
Worcester Animal Rescue League
Chinese Crested Dog Rescue Group
Cathy's Rottie Rescue and Rehab
Greyhound Friends
Ahimsa Haven
GSP Rescue New England
New England Old English Sheepdog Rescue (NEOESR)
PittleLove Rescue
Cocker Spaniel Rescue of New England
Boston Vegetarian Society
Humane Society Youth
Friends of Attleboro Animal Shelter
Housatonic Cairn Terrier Club Rescue
Commonwealth Cats
New England Primate Sanctuary
Second Chance Animal Shelter
All Dog Rescue
Warwick Animal Control and Care
Town of Orange Animal Control
Community Cat Connection
Second Chance Fund for Animal Welfare
Charley's Strays
Best Friends Sanctuary/Massachusetts Office
CMDART/Central Massachusetts Disaster Animal Relief Team
NEARR/Northeast All Retriever Rescue
Vegan Pitbull Rescue
RRUFF/Rescued Rottweilers United with Friends and Family
Second Chance Boxer Rescue
MARS/Mini Aussie Rescue and Support
BusterAlert: The MDRI Education Center 
House Rabbit Network
Forever Home Rescue New England 
Companion Animals in Retirement
Companion Animal Placement Program (CAPP)
Dixie's Pet Project
Love a Golden
Canines for Disabled Kids
GREY2K USA
I Believe...Dog Rescue
Underdog ResQ
Kitty Angels
State of MA Response Team (SMART)
Boxer Buddies
German Shepherd Rescue of New England
MSPCA
International Animal Rescue
Poodle Rescue of New England