Thin Line Capital

Thin Line Capital is a venture firm run by entrepreneurs who say they have started six climate-tech companies, two of them unicorns. It backs young companies working on energy, water and food sustainability.

What Thin Line Capital does

• Seed investment: money for low-capital-cost start-ups.
• Active partnership: the partners act as advisers and mentors to founders and use their technical and engineering knowledge.
• Focused portfolio: A small number of companies in areas the team knows well, rather than a broad spread.

Who it works with

Founders working on renewable energy, electrified transport, decarbonising buildings and climate resilience. The founder and managing partner has more than twenty years as an investor, engineer and entrepreneur, with earlier roles in energy storage and solar thermal companies.

Key facts

• Stage: Seed
• Themes: Renewable energy, electrification of transport, the built environment, climate resilience
• Ethics pledge: Signatory of the VC Lab Mensarius Oath