About Us

Quinn Cleary

President/Co-Founder

Quinn is the owner and a co-founder of Seam Stamps. In addition to Seam Stamps, he currently serves as Pitching Coordinator for the Seattle Mariners. Before the Mariners, he worked for the Philadelphia Phillies and Cressey Sports Performance. He pitched collegiately at Yale.

Ryan McLaughlin

Co-Founder

Ryan co-founded Seam Stamps with Quinn but left the company in early 2025. He currently works in professional baseball and previously worked with the Seattle Mariners in a variety of roles since graduating from New York University, where he played collegiately.