David Kieselstein joined MidOcean’s Executive Board in January 2018. In this role, Mr. Kieselstein leads the Executive Board’s efforts to provide strategic guidance to MidOcean’s portfolio companies. Mr. Kieselstein also serves as Operating Partner across MidOcean’s business services portfolio, and works closely with the investment team in the sourcing, evaluation and execution of new business services investments.

Mr. Kieselstein most recently served as CEO of Penton, a former MidOcean portfolio company and the largest privately held professional information services company in North America. After joining the company in early 2012, he was instrumental in driving the rapid transformation of Penton, by executing on a three-pronged innovation and growth strategy:  focus on the core business with continuous improvement of core offerings, strategic acquisitions in high potential industry sectors, and creation of a new product launch engine.  Penton was acquired by Informa PLC in November 2016 for $1.6 billion.

Prior to joining Penton, from 2008 to 2011, Mr. Kieselstein served as Chief Executive Officer, North America of TNS, a division of WPP which provides high-quality market research insights to Fortune 500 clients in virtually all industries. During his tenure at TNS, he embarked on a full transformation of the company’s operations, which resulted in a significant improvement in profitability across TNS.  He also drove an increase in employee satisfaction to the highest level of all TNS regions globally. 

From 2006 to 2008, Mr. Kieselstein led Dun & Bradstreet’s Small Business Division, the company’s largest and fastest growing division.  While at Dun & Bradstreet, Mr. Kieselstein integrated three distinct operations into a single, customer-centric business unit, and he launched several new product suites that accelerated overall performance.  

Prior to Dun & Bradstreet, Kieselstein served in a range of key leadership roles at Time Warner.  As Chief Executive of the Parenting Media Group, he repositioned the Parenting brand, resulting in 30% revenue growth and the unseating of the long-time category leader within 18 months.  As President and Chief Executive of the Personal Finance Media Group, Kieselstein created a partnership with CNN that resulted in the creation of CNNMoney, one of the world’s most successful personal finance web properties. Earlier in his career, he also held a number of marketing management positions at FORTUNE Magazine, and launched Time Inc.’s centralized direct marketing and database division.

  • Binghamton University, B.A. Economics
  • Northwestern University, Kellogg Graduate School of Management, M.B.A., Served on Alumni Board

Current and Prior MidOcean Boards

David Kieselstein
Chairman, Private Equity