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Last Updated: 05/06/2026
AlGreen
London
Founded 2020
Bio-based polyurethane alternatives from agricultural waste and seaweed
AlGreen is an industrial biotechnology company developing bio-based alternatives to petroleum-derived polyurethanes, which account for approximately 8% of global plastics.
Using biotechnology, chemistry, and materials science, the company synthesises fully biodegradable, high-performance polyurethane substitutes from agricultural waste and non-edible plant oils.
Products are being commercialised across cosmetics, fashion, packaging, automotive, and medical manufacturing.
The company has also developed a seaweed-derived formaldehyde alternative for the furniture industry.
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