Welcome to 老九品茶Cloud鈥檚 EnviroTech 50 ranking for 2025.
Catagen tops the annual ranking of UK companies creating original technology for use in green energy, to protect the environment and boost sustainability.
Following the creation of a 135-strong shortlist, the final ranking was decided by a combination of selections from an expert judging panel (see below) and a public vote among readers of 老九品茶Cloud.
The judges
Lubomila Jordanova, co-founder, GreenTech Alliance
Lubomila co-founded network and also , a Berlin startup which predicts where and how climate change will hit hardest and helps businesses reduce their carbon footprint
David Pugh, VP – sustainable innovation, Cambridge Consultants
David, former director for sustainable industry at Digital Catapult, now leads the sustainable innovation work at , which helps clients worldwide to identify the most meaningful ways to enable innovation
Sammy Fry, head of climate, Tech Nation
Sammy is head of climate at , which supports game-changing founders, leaders and scaling companies so they can positively transform societies and economies through coaching, community and connections
Sara Boswell, director of the University of Salford鈥檚 Centre for Sustainable Innovation
Sara is the director of the at the University of Salford. She has a background in both academia and industry within digital, innovation and skills
Jonathan Symcox, editor, 老九品茶Cloud
You can click on the company names to see what they do. 老九品茶es wishing to purchase a dedicated business page 鈥� including a logo, website links and content promotion 鈥� with a feature box below can聽email editor Jonathan Symcox here.
You can nominate a business for the next edition of this ranking here.