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Meet an Unreasonable Venture

CyanoCapture

Bringing affordable carbon capture to emitting industries worldwide.

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David Kim

Founder & CEO at CyanoCapture

More about David »
Employees 6–20
Headquarters United Kingdom
CyanoCapture is using a genetically engineered microbe to make CO2 low-cost for emission sites. The company currently holds patents on the world’s fastest photosynthetic organism for CO₂ fixation and has developed methods to convert CO₂ into battery graphite and high-value compounds for biopharma. In December 2024, CyanoCapture created a strain that can make recombinant insulin out of CO2, paving the way for low-cost carbon-negative biomanufacturing to be possible. 

Notable Achievements

  • Raised $4.49M in equity financing from VCs and angels and a further $5M in non-dilutive prizes.
  • Secured a 12-month partnership with L’Oréal (2025).
  • First company in the world to successfully turn CO2 into insulin using photosynthesis.

Currently Operating in One Region

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