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Ian Rountree headshot

Ian Rountree

Founder and General Partner, CantosCantos

Current Firm

Cantos

Investments

1+ companies

Focus

Biotech, Climate

About Ian Rountree

Ian Rountree is a venture capital investor at Cantos who positions himself as a "first-check" investor backing founders before they have traction, focusing on what he calls "near frontier" technologies where science is just becoming commercially possible in areas like climate, defense, and industrial resilience. He advocates for "full-stack deep tech" approaches where startups integrate hardware, software, and services rather than just being component suppliers, and hosts the "Near Frontier" podcast to deeply engage with founders building technically challenging, physically instantiated projects.

Focus Areas

BiotechClimateDeeptech

Investment Stage

Pre-Seed
Seed
Series A
Series B+

Notable Investments

Astranis