Leaf-shaped cutout of Warrens group transport bays

Warrens Group

A long-standing waste collection service, Warrens Group started out life collecting and disposing of fallen stock and moving to food waste which then transitioned to a more sustainable model in 2012, with the opening of Warrens Emerald Biogas.

Now providing a complete food waste collection service to over 800 client sites in the food sector, Warrens Group’s dedicated and versatile fleet of vehicles provides a solution for almost all collection requests for commercial food waste and organic based materials. Once collected this material is processed at AD plant Warrens Emerald Biogas to create an array of renewable products – including the biomethane gas used to fuel Warrens Group collection vehicles.

Warrens Group also transport soil boosting biofertiliser from the AD process directly to local agriculture – enabling yet another circular service as nutrients from food waste are returned to the farm improving yields.

A dedicated customer portal provides instant reporting and visibility of your collection schedule as well as invoicing and breakdowns of waste volumes by type.

Warrens Group also offers a Total Waste Management service for all your recycling needs including plastic, wood, general waste and glass


Established Since

August 1986

Acquired by Bio Capital

December 2019


Tonnage Capacity
0 T
Landfill GHG emissions reduction capacity
0 T CO2e
Electricity Generation Capacity
0 MWe
Gas Generation Capacity
0 MWe
Biofertiliser Production Capacity
0 T
Compost Production Capacity
0 T


Warrens Group has a fleet of biomethane trucks and lorries and are replacing 100% fossil fuelled vehicles with CNG trucks. This means customer food waste fuels the vehicles that collect it, an excellent example of the circular economy in action.




Newton Aycliffe – Durham, England
Tom Bateson, Bio Capital Group Head of SHEQ
Bio Capital is delighted to announce that East London Biogas (ELBL) has won a tender to process 50,000 tonnes of local food waste in 2023.
Gas grids in Northern Ireland will see the injection of biomethane, a 100% renewable fuel, into the SGN Natural Gas network this year.
Did you know that recycling just one tea bag a day for a month can produce enough energy to make another five cups?
East London Biogas Ltd (ELBL) is a state-of-the-art organic waste AD facility.
Three further Bio Capital plants have achieved certification under the Anaerobic Digestion Certification Scheme (ADCS).
Bio Capital is pleased to announce the acquisition of Corbiere Renewables Limited from the Raynham Estate and Downing LLP.
Bio Capital were winners at the ADBA Awards in Birmingham.
A new era of waste management is upon us with the introduction of mandatory separate food waste collections across England.
Back in February 2021, Granville Eco Park marked a Northern Ireland first by introducing their ‘Smart Loop’ Lorries to their fleet.
David McKee has extended his current role at GECO to become the Chief Technical Officer (CTO) for the Bio Capital Group.
Warrens Group is lobbying local authorities in the North East to support the region in becoming leaders of household food recycling.
Black Sheep Brewery in Yorkshire has signed a three-year deal with biogas producer Warrens Group.
Granville Eco Park win the Special Recognition Award for Climate Action.
An upcoming policy shakeup could see councils across the UK making household food recycling mandatory.
The Granville Eco Park team were thrilled to celebrate a double win last month at the AD (Anaerobic Digestion) and Biogas Industry Awards 2020!
Ed Wright tells us how Granville have helped Pritchitts establish their own 'Smart Loop'.
Warrens have been working on an expansion project to increase overall energy export capacity by 42%.
Aurium Capital Markets LLP, Equitix and Helios Energy Investments have today announced the creation of Bio Capital Ltd.
Earnside Energy has completed the expansion of its food waste AD plant at Glenfarg, Perthshire, Scotland.
Earnside Energy Limited has secured a contract with Newstar Environmental Limited to process retail food waste in Scotland.
Earnside Energy’s food waste AD plant has been nominated as a finalist in the ADBA awards ceremony.