- 3DEO
- Aberdeen City Council
- Aberdeen Harbour Board
- Agri-Food & Biosciences Institute (AFBI)
- Agriculture & Horticulture Development Board (AHDB)
- Alfred Wegener Institute for Polar & Marine Research (overseas)
- Arup
- Belfast City Council
- Bioversity International
- British Geological Survey (BGS)
- Botanaeco
- Bumblebee Conservation Trust
- Carl Zeiss Microscopy Ltd
- Causeway Coast & Glens Heritage Trust
- CB Dennis Trust
- Centre for Environmental Data & Recording (CEDaR)
- Centre for Ecology & Hydrology (CEH)
- DAERA
- Defra
- Environment Agency
- Forestry & Land Scotland
- Forestry England
- Forest Research Scotland
- Geological Survey Northern Ireland (GSNI)
- Historic Environment Scotland (HES)
- Ireland Brownfield Network
- James Hutton Institute (JHI)
- Joint Nature Conservation Committee (JNCC)
- Keenan Recycling Ltd
- Marine Scotland Science (MSS)
- Mourne Heritage Trust
- National Biodiversity Data Centre, Ireland
- National Collection of Industrial, Food and Marine Bacteria (NCIMB)
- National Trust
- National Trust for Scotland
- National Trust for Northern Ireland
- NOAA Fisheries, Alaskan Fisheries Science Centre (overseas)
- Northern Ireland Environment Link (NIEL)
- NFU Scotland
- NI Water (NIW)
- Northern Ireland Environment Agency (NIEA)
- Pacific Seafoods Group (overseas)
- Royal Botanic Gardens, Kew
- RSPB NI
- RSPB Scotland
- South Atlantic Environmental Research Institute (SAERI)
- South Atlantic Environmental Research Institute (SAERI) Falklands Limited
- Scottish Water
- Scottish Environment Protection Agency (SEPA)
- Scottish National Heritage / Nature Scot
- Shetland UNESCO Global Geopark / Shetland Amenity Trust
- Siskin Group / Siskin Asset Management
- Syngenta
- The Crown Estate
- The Loughs Agency
- The R&A
- The Royal Zoological Society of Scotland (RZSS)
- Tilhill Forestry
- Ulster Farmers’ Union
- Ulster Wildlife
- Volcanic Basin Petroleum Research
- Wildbyte Technologies Ltd
