This spin-out from Cambridge University has developed a patented method of ventilating buildings that uses the heat produced by people and equipment to warm up incoming cold air. The company says its technology, which also keeps buildings cool in summer, cuts heating bills in half. It has been installed in more than 300 offices, schools and shops, including what is reportedly the UK’s first zero-energy coffee shop, a Costa Coffee in Telford. Led by co-founder Shaun Fitzgerald, and funded by investors including MMC Ventures and BP, the company recorded sales of £7.8m in 2016.

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Company details
Year2016
Rank73
CompanyBreathing Buildings
ActivitySustainable ventilation developer
LocationCambridge
Average 3 year sales growth52.25%
Latest sales £000s*7,800
Staff44
Founded2006
Websitewww.breathingbuildings.com

If applicable:

* supplied by company † annualised figure