At a glittering ceremony in London, judges praised Biogen, saying, “This is increasingly the ‘go to’ company for anaerobic digestion. Biogen is a pioneer and has been exemplar in putting digestate back to land and the science and technology behind it. It is also a great business story."

Chief Executive Richard Barker said, "The award is a great testament to the commitment and efforts of each individual in the company. It makes me very proud to work for an organisation that is so respected in the AD industry."

Biogen previously won the National Recycling Award in 2011.