Mr. Zimmerman is a Managing Director at Apollo, focused on investments across aerospace, defense and government services, upstream food and agriculture and hardware and semiconductors. Mr. Zimmerman currently serves on the board of directors for Barnes Aerospace and ecoATM and previously served on the board of directors of Qdoba Restaurants and Apollo Education. Prior to joining Apollo in 2021, Mr. Zimmerman was a Vice President at One Rock Capital Partners, LLC, where he focused on private equity investments across a range of industries. He began his career as an Analyst in the Healthcare Investment Banking group at Barclays. He is a graduate of Boston College, where he earned a BA in Economics with minors in Mathematics and Chemistry.