Royal Parks Agency
- Responsible for administering and maintaining London's Royal Parks. Provides information about the parks, their amenities and forthcoming events and activities.
- http://www.royalparks.org.uk/

Hadley Centre for Climate Prediction and Research
- Government-funded research organisation which aims to provide the United Kingdom with an up-to-date expert assessment of natural and anthropogenic changes in global and regional climate. Site provides information on the Centre, its publications and resea
- http://www.metoffice.gov.uk/research/hadleycentre/

Enhanced Capital Allowance Scheme for Water
- UK Government initiative to encourage the development, manufacture and purchase of water efficient technologies. Site provides details on how the scheme works and who can benefit from it.
- http://www.eca-water.gov.uk

Pesticides Safety Directorate
- Administers the regulation of agricultural, horticultural, forestry, food storage and home garden pesticides. Provides advice for consumers and agricultural users on pesticide safety issues and regulations.
- http://www.pesticides.gov.uk/

Drinking Water Inspectorate
- Provides information on research, regulations and water testing protocols.
- http://www.dwi.gov.uk/

Environment Wales - Amgylchedd Cymru
- A National Assembly for Wales initiative which contributes to sustainable development by supporting and encouraging voluntary action for protecting and improving the environment.
- http://www.environment-wales.org

UK Government Sustainable Development
- Reporting on UK progress towards sustainable development, and providing guidance on how to pursue a more sustainable future.
- http://www.sustainable-development.gov.uk/

The Freshwater Biological Association
- Conducts research into freshwater science and technology.
- http://www.fba.org.uk/

The Centre for Environment, Fisheries and Aquaculture Science.
- The centre is an agency of the UK Government's Department for Environment, Food and Rural Affairs (DEFRA) and is a scientific research and advisory centre for fisheries management and environmental protection.
- http://www.cefas.co.uk/

Centre for Ecology & Hydrology
- Multidisciplinary science programme addressing issues in the terrestrial and freshwater environments.
- http://www.ceh-nerc.ac.uk/

Royal Commission on Environmental Pollution
- Advises on environmental issues and provides a brief summary of previous reports.
- http://www.rcep.org.uk/