| 1 | Dublin Waste Management and Recycling dublinwaste.ie is the Dublin Waste Management website for the Dublin Region aimed at promoting and increasing waste minimisation and recycling at the household level. The site provides useful information on household waste management in addition to keeping householders up to date on new local and regional developments. The site also features and interactive waste management search engine which enables householders to locate the nearest bring bank or recycling centre to home or work. | 284 |
| 2 | The Tree Council of Ireland The Tree Council of Ireland is a voluntary non-governmental organisation which was formed in 1985, to promote the planting, care and conservation of trees in both urban and rural areas. | 118 |
| 3 | Trinity Astronomy and Space Society College society website with information about events, the society and links. | 109 |
| 4 | Butterflies of Ireland Presented by Dublin Naturalists Field Club, shows photographs and information on all Ireland''s native and immigrant butterflies, for egg, adult, caterpillar and pupa, together with distribution map for each species. | 104 |
| 5 | Astronomy Ireland Details of this Irish national space-interest association, with sky and space news, including details of upcoming events, links and general information. | 93 |
| 6 | Wildwatch (The Irish Wildlife Trust) Formerly the Irish Wildlife Federation, this is a leading non-governmental conservation and environmental education and campaigning group. Site offers information on their structure, positions, joining up and affiliated bodies. | 92 |
| 7 | Environmental Protection Agency Ireland''s statutory body for the balanced and sustainable protection and management of the environment. Organisation history, workings, educational and technical material, notes on licencing and interactive water quality maps. | 91 |
| 8 | Institute of Physics in Ireland A branch of an Ireland and UK body, providing details of its workings, calendar, awards, newsletters and a bulletin board. | 89 |
| 9 | European Space Agency - Ireland News in space exploration, human spaceflight, telecommunications, navigation, monitoring and space science, with calendar. | 89 |
| 10 | Dunsink Observatory Information about the observatory, its archives and databases, staff and some good links. | 87 |
| 11 | AgriAware Information from the charitable Agricultural Awareness Trust, aiming to foster a greater understanding of agriculture and the food industry, and offering news, background, notes on various topics and competitions. | 85 |
| 12 | BioResearch A government and university agency supporting biotechnology research and technology transfer. Gives information on participating research centres and the benefits of relocating a business to Ireland, educational material, news, events and discussion facilities. | 82 |
| 13 | Astronomical Science Group of Ireland (ASGI) This scientific collaboration body for astronomers, physicists and technicians across Ireland presents details of events, clubs and societies, research groups, contacts and links. | 79 |
| 14 | Teagasc The national body providing integrated research, advisory and training services to agriculture and the food industry. | 78 |
| 15 | Conservation Volunteers Ireland An organisation of volunteers to work on conservation projects in Ireland, from part-days to weeks away. With information on membership and activities, schedules and contact details. | 72 |
| 16 | ENFO Ireland''s public environmental and sustainable development information service, presenting substantial information in categories, activity and school notes, details of publications and exhibitions, background, contact data and FAQs and a reference database. | 71 |
| 17 | Bat Detective Information about Irish bat species. Details of habitat, diet, ecology and houses. | 68 |
| 18 | GRIAN, Greenhouse Ireland Action Network This climate change awareness and solutions-promoting network offer news, details of their work, how to help, press releases and a newsletter. | 67 |
| 19 | Zero Waste Alliance Ireland Outline of purpose, FAQ, activity summary, press releases and news on current environmental issues from this campaigning group. | 67 |
| 20 | Geophysical Association of Ireland Aims, membership details, committee, constitution, events, shop, maps, contact directory and links from this professional development, lobbying and discussion group. | 65 |