Campaign Whale
A non profit organisation dedicated to the protection of whales, dolphins, and their habitats.
http://www.campaign-whale.org/

Cetacean Research and Rescue Unit
Dedicated to the understanding, welfare, conservation, and protection of whales, dolphins, and porpoises in Scotland.
http://www.crru.org.uk/

Hebridean Whale and Dolphin Trust (HWDT)
Organization for research, education, and the study of whales and dolphins off the west coast of Scotland.
http://whales.gn.apc.org/

National Seal Sanctuary
A rescue, rehabilitation, and release centre for seals in Cornwall.
http://www.sealsanctuary.co.uk/

Whale and Dolphin Conservation Society (WDCS)
International charity dedicated to the worldwide conservation and welfare of Whales and Dolphins.
http://www.wdcs.org/