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Green gas — offtake & trading

The companies that hold green gas / RGGO certificates available to sell on the Green Gas Certification Scheme register — the trading and offtake counterparty universe for UK biomethane. We cross-reference each against the tracked fleet to surface vertical integration.

This is the green-gas sellers register — not a list of plants or assets for sale.

Registered sellers
112
Also in tracked fleet
5
vertical integration
Register updated
6 Jul 2026

Vertical integration — tracked owners active on the sellers register (5)

Arla Foods Ltd
Owner group on register · Arla Foods
Lockerbie Biogas
Ecotricity Ltd
Owner group on register · Ecotricity
B S Green Energy
Northumbrian Water Ltd
Operating company on register · CK Infrastructure Holdings (Northumbrian Water)
Northumbrian WaterNorthumbrian Water
Severn Trent Green Power Ltd
Operating company on register · Severn Trent
Severn Trent Green PowerSTGPSevern Trent Green PowerSevern Trent Green Power+1 more
Severn Trent Water Ltd
Operating company on register · Severn Trent
Severn Trent WaterSevern Trent WaterSevern Trent Water

Sellers register

Arla Foods LtdIn fleet
Ecotricity LtdIn fleet
Northumbrian Water LtdIn fleet
Severn Trent Green Power LtdIn fleet
Severn Trent Water LtdIn fleet
3Degrees Group IncTrader
ACT Commodities B.V.Trader
Action Renewables Energy Trading LtdTrader
AFS Energy B.V.Trader
Aither Group SATrader
Aither Trading SATrader
Anew Gas GmbHTrader

Source: Green Gas Certification Scheme — “Green Gas — For Sale” register. The sellers register is GGCS data and is not under the Open Government Licence. Cross-referencing against the tracked fleet uses Companies House / public-register data — by company-name match, indicative only — which contains public sector information licensed under the Open Government Licence v3.0. Screening tool only — not investment advice.