Hypurrcat
- A treatment center built exclusively for radioiodine treatment of cats with hyperthyroidism.
- http://www.hypurrcat.com/

Thyro-Cat
- A Long Island, New York based center dedicated to the treatment of cats with feline hyperthyroidism, using I-131.
- http://www.thyrocat.com/

Radiocat
- Centers for the treatment of feline hyperthyroidism. Discusses services and philosophy, the different ways of treatment, hospital locations and phone numbers.
- http://www.radiocat.com/

Veterinary Nuclear Imaging
- A southern California based veterinary facility providing diagnostic nuclear medicine and magnetic resonance imaging for animals as well as radioiodine therapy for feline hyperthyroidism.
- http://www.vetnucimaging.com