Friends of Alley Cats of Tucson (FACT)
- Fosters feral cats and educates citizens who are feeding feral/stray cats about how to trap/neuter and return the cats to their territory to prevent further breeding.
- http://www.petfinder.com/shelters/AZ16.html

Four Peaks Animal Rescue
- Offers cats and dogs for adoption, and calendar of events.
- http://www.fourpeaksanimalrescue.org/

Oasis de los Gatos
- Maintains a sanctuary for feral cats and educates humans about the feral cat. Includes photos of available cats.
- http://www.oasisdelosgatos.org/

Mildcats at ASU
- Works to control the homeless cat population on the ASU campus, finds homes for adoptable cats, and educates the university populace about the responsibilities of pet ownership. Photos of available cats, feeding tips, and the group's TNR and adoption reco
- http://www.mildcatsatasu.org/

Classified Cats
- Online cat adoption service for cats in Arizona. Search with specifications for an adoptable cat or list a cat for adoption.
- http://www.cowcats.com

AzCats
- Arizona Cat Assistance Team focuses on the feral cat overpopulation problem. They offer spay/neuter assistance, humane trapping of stray or feral cats, and cat rescue assistance.
- http://www.azcats.org/

Arizona Feline Network
- Special-needs cats available for adoption, including FIV+ and FeLV+ cats.
- http://www.azfelines.org

Hermitage No-Kill Cat Shelter
- Tucson's only no-kill, no-cage facility. Online newsletter, wish list, and volunteer opportunities.
- http://www.hermitagecats.org/