| Palm Beach Zoo | (West Palm Beach, FL) |
| Pasadena Humane Society & SPCA | (Pasadena, CA) |
| Pasado's Safe Haven | (Sultan, WA) |
| PAWS Atlanta | (Decatur, GA) |
| PAWS Chicago | (Chicago, IL) |
| PAWS Connecticut | (Norwalk, CT) |
| Paws With A Cause | (Wayland, MI) |
| Peaceful Valley Donkey Rescue | (Tehachapi, CA) |
| Peggy Adams Animal Rescue League | (West Palm Beach, FL) |
| Pennsylvania SPCA | (Philadelphia, PA) |
| People for the Ethical Treatment of Animals | (Norfolk, VA) |
| Performing Animal Welfare Society | (Galt, CA) |
| Pet Adoption Fund | (Canoga Park, CA) |
| Pet Network | (Incline Village, NV) |
| Pet Orphans of Southern California | (Van Nuys, CA) |
| Pets Are Wonderful Support | (San Francisco, CA) |
| Pets in Need | (Redwood City, CA) |
| PetSmart Charities | (Phoenix, AZ) |
| Pheasants Forever (PF): The Habitat Organization | (St. Paul, MN) |
| Phoenix Zoo | (Phoenix, AZ) |
| Pittsburgh Zoo & PPG Aquarium | (Pittsburgh, PA) |
| Placer SPCA | (Roseville, CA) |
| Point Defiance Zoological Society | (Tacoma, WA) |
| Potter League for Animals | (Newport, RI) |
| PRBO Conservation Science | (Petaluma, CA) |
| Predator Conservation Alliance | (Bozeman, MT) |
| Progressive Animal Welfare Society | (Lynnwood, WA) |
| Providence Animal Rescue League | (Providence, RI) |
| Puppies Behind Bars | (New York, NY) |
| Quail Unlimited | (Edgefield, SC) |
| Ramapo-Bergen Animal Refuge, Inc. | (Oakland, NJ) |
| Ramona Humane Society | (San Jacinto, CA) |
| Rancho Coastal Humane Society | (Encinitas, CA) |
| Return to Freedom | (Lompoc, CA) |
| Rhode Island Zoological Society | (Providence, RI) |
| Richmond SPCA | (Richmond, VA) |
| Roanoke Valley SPCA | (Roanoke, VA) |
| Rocky Mountain Elk Foundation | (Missoula, MT) |
| Ruffed Grouse Society | (Coraopolis, PA) |
