Partner at Costanoa Ventures
Check size: Costanoa does not publish a standard current initial check-size range on its official site.
Mark Selcow invests or supports investments through Costanoa Ventures's published strategy: Partner early with ambitious founders building enduring technology companies, then support product-market fit, talent, go-to-market and later growth through the firm's BuilderOps and Ascent capabilities.
Show the founder insight, product and technical edge, early customer evidence, market size, company-building bottlenecks and where Costanoa's operating team can change the trajectory.
Technically strong, high-integrity founders pursuing large markets who want an honest, low-ego and operationally engaged partner.
No categorical public pass list is stated; opportunities without an early-stage technology core or without openness to hands-on partnership appear less aligned.