| Bird Watch Ireland | http://www.birdwatchireland.ie | |
| CRANN | http://www.crann.ie | |
| Energy Saving Trust | http://www.energysavingtrust.org.uk | |
| ENFO | http://www.enfo.ie | |
| Enviro Solutions | http://www.enviro-solutions.com | |
| Environment and Heritage Service Northern Ireland | http://www.ehsni.gov.uk/natural/biodiversity | |
| Organic Directory for the UK | http://www.whyorganic.org/involved_organicDirectory.asp | |
| Pesticide Action Network UK | http://www.pan-uk.org/ | |
| Plan Organic | http://www.planorganic.com/ | |
| Quercus | http://www.quercus.ac.uk | |
| Teagasc | http://www.teagasc.ie | |
| The Greenbox | http://www.greenbox.ie/ | |
| The Inland Waterways Association of Ireland | http://www.iwai.ie | |
| The Irish Timber Growers Association (ITGA) | http://www.itga.ie | |
| The Tree Council of Ireland | http://www.treecouncil.ie | |
