Scuba First Ltd
- Scuba diving school offering PADI instruction in heated on site dive pool. Based in Llangors, Powys.
- http://www.dalton-house.com/scuba-diving/

Dive Pembrokeshire UK
- Activity centre with accommodation, offering charters for diving around the Skomer National Park from Little Haven.
- http://www.dive-pembrokeshire.com/

Learn to Dive
- Diving school offering PADI training, club trips, local dives, social events and equipment hire. Based in Cwmbran.
- http://www.learntodive.org.uk

Total Scuba
- Offer PADI training courses. Based in Cardiff.
- http://www.totalscuba.co.uk

Cardiff BSAC
- Offer BSAC training and organise diving trips and social events.
- http://www.cardiffbsac.org

Cymru Divers
- Diving club based that organises regular diving trips and events. Includes discussion forum. Based in South Wales.
- http://www.users.globalnet.co.uk/~leon/

Taskforce Scuba Diving Centre
- Offers PADI scuba training courses. Based in Cardiff.
- http://www.taskforcescuba.com

Ocean Quest
- Diving centre offering PADI training and organising diving trips. Also offers other watersports. Locations in Cardiff and Porthcawl.
- http://www.ocean-quest.co.uk

West Wales Dive Centre
- Offer PADI training courses, diving trips and boat charters. Includes newsletter and information on local diving sites. Based at Little Haven, Pembrokeshire.
- http://www.westwalesdivers.co.uk

Vivian Dive Centre
- Inland slate quarry offering diving between 6m and 18m. Toilet facilities and airfills available on site. Based in Llanberis, Snowdonia.
- http://www.divevivian.com

Golden Lion Sub Aqua Club
- Diving club offering BSAC and SAA training and diving trips. Owns 2 boats. Based in Mold, North Wales. [English/Welsh]
- http://www.btinternet.com/~dyl.jones/glsac/

Cardiff Scuba
- Diving club offering PADI training and diving trips, and a dive shop for equipment sales and hire.
- http://www.cardiffscuba.co.uk

Llantrisant Sub-Aqua Club
- Contains diving schedules, tide tables, newsletter, photo gallery, and links to other diving sites.
- http://www.llantrisantdivers.com/

SYSAC Divers
- Discover information on club membership, training calendar, facilities description, events and photos.
- http://www.bsac99.org.uk

Waterline Charter
- Find description of RIB boat, skipper qualifications, information on diving and other available trips, along with locations visited.
- http://www.water-line.co.uk

Clwb Dan y Mor
- Scuba diving club based in Cardiff members of the Sub Aqua Association and the Welsh Association of Sub Aqua Clubs
- http://www.danymor.co.uk

Diving Dragons
- Non-teaching club located in Cardiff. Includes photographs, dive trips, trip reports, and meeting information.
- http://www.divingdragons.co.uk

Shearwater Diving
- Purpose built large power catamaran specialising in dive and cruise charters around the coast of the Lleyn peninsula of north wales.
- http://www.llynmarinecharters.supanet.com

Frogsborn Diving Centre
- North Wales near Chester. They specialise in supplying dive kit and diver training. The centre holds courses in the UK and abroad.
- http://www.frogsborn.co.uk/

Celtic Diving
- Dive centre offering PADI training, equipment sales, air fills and a dive boat charter. Also offer sailing and powerboat courses. Based in Goodwick Parrog, Pembrokeshire.
- http://www.celticdiving.co.uk

Anglesey Diver Training College
- BSAC school and technical diving centre in North Wales, UK. Air & Nitrox fills, fully equipped shop. Boat diving services.
- http://www.diveanglesey.co.uk