- Bord Gais Eireann (Irish Gas Board)
- Bord na Mona
- Bord Pleanala
- Coillte
- Commission for Energy Regulation
- Department of Communications, Energy and Natural Resources
- Department of Environment, Heritage and Local Government - Environment Section
- Department of Environment, Heritage and Local Government - ENFO - The Environmental Information Service
- Environment Protection Agency
- Geological Survey of Ireland
- Met Eireann
- National Roads Authority (NRA)
- National Spatial Strategy
- Ordnance Survey Ireland
- Land Registry, Registry of Deeds
- Marine Institute
- Office of Public Works
- Sustainable Energy Ireland