Northern Ireland Environment Link
- Includes aims, member directory, education information and bibliography.
- http://www.nienvironmentlink.org/

Groundwork Northern Ireland
- A not-for-profit organisation working for sustainable neighbourhood renewal through environmental regeneration in areas of high social and economic need.. Includes background and services information with details on current programmes.
- http://www.groundworkni.org.uk

The Green Party in Northern Ireland
- A non-sectarian party campaigning on environmental issues. Their site includes news, current campaigns, policy information, membership details, links and contact details, and humour.
- http://www.greens-in.org/

River Bann and Lough Neagh Association
- Community-based group of boating enthusiasts, environmentalists, anglers, and naturalists who aim to preserve and promote the amenities of the Bann and Lough Neagh, their tributaries and associated waterways. Includes a code for watercraft users, events g
- http://riverbannloughneagh.org/

Irish Peatland Conservation Council
- Environmental campaigning group, with information on bogs, press releases, fundraising, education and contacts.
- http://www.ipcc.ie/

Conservation Volunteers Northern Ireland
- Links, contact details and volunteering opportunities.
- http://www.cvni.org.uk/

The Cave Hill Conservation Campaign
- Voluntary group dedicated to the environment conservation of the Cave Hill for the benefit of the people of Belfast, Ireland and beyond.
- http://www.cavehill.freeuk.com/