Pembrokeshire Bat Group
- Introducing twelve of Britain’s species, including nursery roosts of lesser and greater horseshoes, and recent sighting of the barbastelle. Featuring guided walks in the national park, constitution, history and contacts for officers.
- http://www.pembsbats.org.uk/

Interseed Project
- Cross border initiative promoting technology education and research for individuals, communities, enterprise sectors, entrepreneurs, maintained by the Darwin Centre for Biology and Medicine and the Institute of Technology Carlow, Ireland.
- http://www.interseedproject.org/

Cambria Archaeology
- Featuring many archaeological sites throughout the county, also with projects in Ceredigion and Carmarthenshire, where this trust is based. Includes planning services, records for sites and monuments. [English and Welsh]
- http://www.acadat.com/

Darwin Centre for Biology and Medicine
- Developing programmes in the public understanding of health, applied and theoretical sciences. Includes FAQ and forum for festival and marine science at Pembrokeshire College.
- http://www.darwincentre.com/

Sea Trust
- Charity dedicated to wildlife conservation, including whales, dolphins, porpoise and seals, in seas off the west coast. Includes results of surveys, educational facilities and contacts for courses organised near Goodwick.
- http://www.seatrust.org.uk/

Pembrokeshire Biodiversity Partnership
- Collection of organisations and individuals working to conserve, promote and enhance biodiversity in the county.
- http://www.biodiversitypembrokeshire.org.uk/