Mark Selcow

Mark Selcow

VC

Partner, Costanoa Ventures

Serial founder turned fintech and AI investor

San Francisco, CA$2M–$5M checks5 notable investments
SeedSeries A
FintechAIEnterprise SaaSHealthcare

Background

Mark Selcow brings 17 years of operating experience as co-founder of BabyCenter (sold to Johnson & Johnson, 2001) and Merced Systems, the leader in call-center performance management (sold to NICE Systems, 2012). He joined Costanoa Ventures in 2015 and focuses on fintech, banking, insurance, and applied AI in vertical software. He is known for deeply immersing himself in sectors before investing—opening an HSA account before backing LivelyHSA—and serves on the board of Lick Wilmerding High School in San Francisco.

Investment Thesis

B2B fintech (banking, insurance), applied AI in vertical software, healthcare AI; backs founders outside the Bay Area

Investment Focus

Stages

SeedSeries A

Typical check: $2M–$5M

Sectors

FintechAIEnterprise SaaSHealthcare

Based in: San Francisco, CA (North America)

Notable Investments

Last updated: Jun 11, 2026