Charlie Warren is a Visiting Partner at Y Combinator and the former CEO and Co-Founder of Convex, a sales and marketing platform for commercial contractors. He is the Primary Partner at YC for Silica, an actuator startup founded by Enrico Milletti, and invests in physical and vertical AI, services and industrials.

Charlie worked as an Associate at Goldman Sachs, was a Co-Founder at Route, and was a Research Associate at the Council on Foreign Relations. He holds an MBA in Finance from the Massachusetts Institute of Technology.

Charlie has over 10 years of experience building data, energy analytics and enterprise software products. He co-founded Convex through Y Combinator's Winter 2019 batch and now advises founders from the other side of the table.

Charlie co-founded Convex in 2017 with Blake Meulmester and led it as CEO through its acquisition by ServiceTitan in 2024. He then served as Vice President of Commercial and Construction Markets at ServiceTitan before joining YC as a Visiting Partner.

In 2023, Convex helped its customers drive nearly $1.5 billion in incremental growth. Convex raised about $39M in funding before joining ServiceTitan, a leading software platform for the trades.