Industrial / Commercial
- Able (UK) Ltd
- Anderson Barrowcliff LLP
- Augean PLC
- BOC Ltd
- Wood (CATS Teesside Site)
- Canal and River Trust
- CF Fertilisers
- ConocoPhillips Ltd
- Exwold Technology
- Fine Organics Limited
- Huntsman Polyurethanes
- ICL Fertilizers (Cleveland Potash)
- Exolum Seal Sands Terminal
- Johnson Matthey
- Mitsubishi Chemical UK Ltd
Nature Conservation Agencies
- Royal Society for the Protection of Birds (RSPB)
- Tees Valley Wildlife Trust
- Teesmouth Bird Club
- Teesmouth Field Centre
- Teesside Environmental Trust
- Wildfowl & Wetlands Trust
Statutory Authorities
Membership as of 6th February 2020