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Anthropocene Ventures invests at pre-seed and seed in climate technology companies built on hard science and novel engineering, through Anthropocene Fund I and angel activity.
Thin Line Capital
Seed-stage venture firm investing $400,000–$600,000 in low-capex energy, food, water and climate technology companies, with active founder mentorship.
Thin Line Capital is a seed-stage venture capital firm investing in companies addressing energy, food, water, and climate challenges. The firm focuses specifically on low-capital-expenditure businesses - those where progress is driven more by engineering and iteration than by heavy upfront investment in physical assets - and concentrates on areas where the firm holds direct domain expertise. Typical investments range from $400,000 to $600,000 per company.
The firm was founded by Aaron Fyke, an entrepreneur and engineer whose founding team has built six climate-tech ventures. Technical areas of interest span fuel cells, ocean power, concentrating solar, grid-scale energy storage, renewable energy, electrified transportation, climate resiliency, and decarbonisation of the built environment. The stated approach pairs capital with active mentorship and support throughout the company-building process, and the firm describes its strategy as founder-led and grounded in ethical conduct.
Thin Line Capital frames decarbonisation as both an urgent climate response and a significant economic opportunity, and targets a focused portfolio built around areas of technical familiarity rather than broad thematic coverage.
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