Our History

Andigestion Ltd is part of the Summerleaze Group, a leading investor and innovator in the renewable energy sector.

Founded in 1928, Summerleaze is a privately-owned company, whose origins are in the field of mineral extraction. The company has diversified substantially since then, into fields such as waste management and renewable energy. Operating as a small, dedicated team, we aim to innovate to make the most of under-valued resources. We back ideas that we believe have a strong future on the basis of long-term fundamentals.

Andigestion was established in 2004 to develop and commercialise anaerobic digestion as a viable waste-treatment technology. The company began by steadily converting the Holsworthy site to process food waste instead of farm slurries and we subsequently developed the Cambridge research plant. The growth of the AD sector and the company’s continued success means that a new facility in Bishops Cleeve, Gloucestershire opened its doors in 2015 this time supplying biomethane into the local gas grid.


Holsworthy Biogas Plant bought by Summerleaze and Andigestion is born.


Holsworthy became the first food waste only biogas plant in the UK.


Andigestion becomes the first Anaerobic Digestion company to achieve the PAS 110 standard on its digestate.


Andigestion wins a contract with Gloucestershire County Council to process their food waste. Planning begins for the Bishops Cleeve Biogas plant.


Bishops Cleeve Biogas plant officially opens and begins injecting biomethane into the grid.


The Wheelie Bin Exchange Service is launched along with our Woodchip business in Holsworthy, as Andigestion starts to provide high quality woodchip to companies in the South West.

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