Endymion Rats
- Small rattery based in Kettering, Northamptonshire, UK concentrating on breeding Russian Blue Agoutis and silver fawn/champagnes. Includes care articles, planned litter information and photographs.
- http://www.endymionrats.co.uk/

Carreg Rattery
- Breeders of Russian Blue in dumbo and rex. Includes information about planned litters and photographs. Located in Portsmouth, UK and Cardiff, Wales.
- http://www.carregstud.co.uk

Serendipity and Amirante Studs
- Breeding Fancy Rats for pets and exhibitions. Includes owners' profiles, articles and photographs. Based in Yorkshire, UK.
- http://freespace.virgin.net/paul.threapleton/

Mana Rattery
- Breeding for variegated and related markings. Located in Falkirk, Central Scotland.
- http://mana.vinix.co.uk/

Rowangate and Pegasus Studs
- N.F.R.S registered stud, breeding Striped Roan & Black Eyed White fancy rats
- http://www.rowangate.co.uk

Tennyson Stud
- Specializing in blue, himalayan and pearl. Located in Lincoln, UK.
- http://homepage.ntlworld.com/tennyson.stud/

Shunamite Rats
- Blue, platinum and related colours in dumbo and standard ear. Supplier of Ideal Bedding for rats. Located in North East England.
- http://www.shunamiterats.co.uk/

Rattery Gismo
- Many different marked varieties, mainly in dumbo. Located in Belgium.
- http://users.skynet.be/drine/ratterygismo/

The Rats of Alpha Centauri
- Breeding blue, pearl, siamese, BEW and others. Located in Somerset, UK.
- http://www.alphacentauri-rats.co.uk

The Pendragon Rattery
- Breeder of dumbo, russian blue, and other varieties of fancy rats. Based near Southampton, UK.
- http://www.nenuphar.plus.com/pendragon/

Skye's Rattery
- Mainly blue related colours in top eared and dumbo. Located in Glasgow, Scotland.
- http://homepage.ntlworld.com/tracey.sharp1/

Koserotta Rattery
- Norwegian rattery with rex and dumbo kittens sometimes available.
- http://home.no.net/kosrotta

Blackstaff Rats
- English Badgers from purebred long lived stock. Includes some articles and information. Located in London, England.
- http://www.blackstaff.co.uk/