Our Team

Mark Coster

Corporate Development & Strategy

Mark joined the Polaris Growth Fund team in 2023 to help build its Strategic Acceleration Team. In his role, Mark works with PGF portfolio companies to evaluate and execute strategic acquisitions.

Prior to joining PGF, Mark was the SVP of Corporate Strategy and Development at Trader Interactive where he led the acquisition of multiple lower middle market companies. The company was PE-owned by Goldman Sachs and Eurazeo until its exit to Carsales (ASX: CAR) in 2022. Prior to Trader Interactive, Mark worked at CarMax and PRA Group in Corporate Strategy, Corporate Development, and Portfolio Acquisition roles. He started his career at the Boston Consulting Group (BCG) as an Associate in the DC office.

Mark holds an MBA from the Darden Graduate School of Business and a BSc in Commerce from the McIntire School of Commerce, both at the University of Virginia.

Mark lives in Virginia Beach with his wife Courtney and three children and, in his free time, enjoys coaching, playing, and watching sports.