
Derek B. Wittenberg
Derek focuses on a variety of sectors of technology, particularly B2B software. He leads the Enterprise and HealthTech practices at Progress Partners. Derek focuses on sell-side M&A, buy-side M&A, and capital-raising services for growth-stage companies in areas such as Application Software, Infrastructure Software, Vertical Software (FinTech, EdTech), Patient Engagement, Healthcare Payments, and Medical Marketing.
Mr. Wittenberg is experienced in IPOs, mergers & acquisitions, and private capital-raising. Over a 27 year career, he has completed numerous transactions for emerging companies such as Engineering Dynamics, ReserveAmerica, Baseball Prospectus, Printcafe Software, Indigo, and Fiber Network Solutions as well as Fortune 500 clients such as Alltel, Computer Associates, US West (Qwest) and Air Touch Wireless (Verizon).
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 began his investment banking career at Lehman Brothers in 1992, where he was an Associate in the telecom and technology groups.
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, focusing on Finance and Strategy. He has supported a number of non-profit ventures, including Educate! (board member) and the Yale SOM/Goldman Sachs Foundation Partnership for Non-Profit Ventures.

Darrow Associates is an award-winning investor relations and financial communications consultancy with team members located nationwide.
Darrow Associates is an award-winning investor relations and financial communications consultancy with team members located nationwide.