Cubic Sum: Funds
An early stage fund investing in the next wave of climate tech and AI ventures at its source
We leverage Stanford’s innovation leadership to identify and scale the most transformative companies
A growth-stage fund to scale category-defining companies at critical inflection points…
…where strategic engagement and Stanford networks will drive significant returns.
Big Ideas,
Real Impact.
What Differentiates Us
Conviction-Led,
Follow-On InvestingWe double down on proven companies — within the portfolio and beyond — after product maturity, commercial traction, and market structure have de-risked the next phase to scale.
Precision versus Portfolio Breadth
We invest selectively where fundamentals, timing, and scaling dynamics align behind a smaller number of high-conviction opportunities versus pursuing broader portfolio breadth.
Network-Powered Scaling Advantage
Our deep connectivity to the Stanford ecosystem and aligned institutional partners supports our diligence, technical perspective, talent access, and strategic partnerships.