| American Fancy Rat and Mouse Association: International rat and mouse club for show and pets. |
| Australian Mouse and Rat Information Service: AMRIS international mouse and rat welfare and pet care information service and newsletter. Rodent adoption shelter to re-house unwanted domestic rats and mice. |
| Bay Area Rat and Mouse Club of America: Local chapter in California. Includes a list of local shelters. |
| Eadie's House: Group of individuals dedicated to the prevention of small mammal cruelty and abuse. Information on their activism, photographs of rats for adoption, contact information for rescuing retired lab rats, and links to other rat rescues. |
| Essex Guinea Pig & Rat Rescue: A UK-based registered charity caring for sick and unwanted guinea Pigs and fancy rats. Re-homing and adoption of fit and healthy animals is available. |
| London & Southern Counties Mouse and Rat Club: Founded in 1916. Describes varieties of both animals and includes digital library, book list, and membership information. |
| Rat and Mouse Club of America - Southern California Chapter: Club information and links to resources, as well as Furry Friends Orphanage in Southern California. |
| Rat Association of Texas: Promotes rats and mice as companion pets. Includes a membership application [PDF format], an event calendar, rescue information, and a list of recommended vets. |
| RMCA: Rat and Mouse Club of America. Includes club information, events, contests, merchandise, rat standards, vet recommendations, and magazine subscription information. |
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