Isaac Evans

Isaac Evans is the Founder and CEO of Semgrep, the developer-first application security platform that has redefined how modern engineering teams handle code security. An MIT-trained computer scientist with a background in U.S. Department of Defense security research, Evans co-founded Semgrep in 2017 with college roommates Drew Dennison and Luke O'Malley. Under his leadership, Semgrep grew from a niche static analysis tool into a platform scanning 75+ million code repositories annually, serving customers like Figma, Dropbox, Slack, and Snowflake. In February 2025, the company closed a $100M Series D led by Menlo Ventures, bringing total funding to $193M. Evans's core thesis - that security must serve developers, not obstruct them - has made Semgrep a defining force in the AppSec category.