Ian Rountree
InvestorFounder and General Partner at Cantos Ventures
San Francisco, California
Writes $400K β $1.3M checks Β· typically $750K
About
Ian Rountree is a first-check investor backing pre-traction founders commercializing near frontier science in climate, defense, and industrial resilience, advocating full-stack deep tech and hosting the Near Frontier podcast.
Invests in
Climate TechDeep TechHardwareMobility & TransportationNew Materials
Experience
- CantosGeneral Partnercurrent2016 β presentSan Francisco Bay Area
- EARTH AIBoard Membercurrent2023 β present
- Salient MotionBoard Membercurrent2024 β present
- ShinkeiBoard Observercurrent2024 β present
- SkyryseBoard Observercurrent2018 β present
- Atomos SpaceBoard Member2023 β 2025
- Pow.bioBoard Observer2019 β 2023
- Invisible Technologies, Inc.Chief of Staff2015 β 2016San Francisco Bay Area
- Angel InvestmentAngel Investor2012 β 2016San Francisco Bay Area
- The MascotManager2013 β 2015San Francisco Bay Area
- SoFi Inc.Associate Director of Corporate Relationships2013San Francisco Bay Area
- SoFi Inc.Associate Director of Bank Partnerships2012 β 2013San Francisco, CA
- SoFi Inc.Marketing Manager - Ambassador Program Lead2012San Francisco, CA
- Huron Consulting GroupRevenue Cycle Analyst2011 β 2012Greater Nashville Area, TN
- Manna Project InternationalProgram Director2009 β 2010Managua, Nicaragua
Education
- Vanderbilt UniversityBachelor of Arts (B.A.), Political Science2005 β 2009
- McCallie SchoolHigh School2001 β 2005
Skills & more
Languages Spanish Β· Swedish
- License - Series 62 & 63 β FINRA
From Ian's professional profile.
Same school
Also attended Vanderbilt University150
+ 144 more
Shared employers
Also worked at EARTH AI1
Also worked at Skyryse4
Also worked at SoFi Inc.37
+ 31 more
Also worked at Manna Project International1
Deals Β· 2
EARTH AIBoard seat
via Cantos Ventures Β· filed Feb 2025 Β· $25.9M raise
Atomos Nuclear & SpaceBoard seat
via Cantos Ventures Β· filed Jan 2023 Β· $20M raise
Attribution from SEC filings, press coverage, and firm rosters.
Colleagues at Cantos Ventures
Network4
Investors connected to Ian in public investor directories β a warm-intro map.















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