Mr. Wittenberg is a Managing Director of Progress Partners, a technology-focused investment bank headquartered in Boston. He leads the Enterprise and HealthTech practices and focuses on sell-side M&A, buy-side M&A, and capital-raising services for growth-stage companies. Mr. Wittenberg is experienced in IPOs, mergers & acquisitions, and private capital-raising. Prior to joining Progress Partners in 2020, Mr. Wittenberg co-founded and served as Managing Director of Ion Partners LLC, a boutique technology investment bank based in New York City, from 2003-2019 after working at nationwide investment banks KeyBanc Capital and Ladenburg Thalmann. Mr. Wittenberg earned his B.A. in Economics from Amherst College in 1987. Mr. Wittenberg graduated from the Yale School of Management with a Masters in Public and Private Management (M.P.P.M.) in 1992 and holds FINRA Series 7, 24, and 79.