David J. Grain

Managing Director, Founder & CEO

Mr. Grain is Managing Director, Founder & CEO of Grain Management, LLC a private equity firm focused on investments in the media and communications sectors. The firm manages two flagship funds for a number of the country’s leading academic endowments and public pension funds. Prior to founding Grain Management, he was the founder and CEO of Grain Communications Group, Inc., a venture capital backed company with a core focus on acquiring, building, owning and operating wireless communications tower sites for commercial, federal and state government wireless systems throughout the United States.

From 2002 to 2006 Mr. Grain served as President of Global Signal Inc. (formerly NYSE listed GSL). Under Mr. Grain’s leadership, Global Signal grew its portfolio from approximately 2,000 to over 11,000 communication sites in all 50 states, Canada and the United Kingdom. In 2006 Crown Castle International (NYSE – CCI) agreed to acquire Global Signal for $5.7 billion. The sale provided GSL’s private equity investors with a return of over 12 times their original investment and IPO investors with a 3.5 times return on their investment. Prior to joining Global Signal, Mr. Grain served as Senior Vice President of AT&T Broadband’s New England Region and was an Executive Director in the High Yield Finance Department at Morgan Stanley in New York where he focused primarily on telecommunications, media and technology companies.

As an active participant in national civic affairs, President Barack Obama appointed Mr. Grain to the National Infrastructure Advisory Council (NIAC) in July 2011 where he recently chaired the Critical Infrastructure Security and Resilience National R&D Plan working group. In September of 2009, Florida’s Governor Charlie Crist appointed Mr. Grain to the State Board of Administration’s (SBA) Investment Advisory Council where he served as Chairman. He previously held a similar position as Chairman of the Investment Committee of Massachusetts Pension Reserves Investment Management (Mass PRIM). Mr. Grain currently serves on the Investment Committee of the United States Tennis Association (USTA), serves on the Board of Directors of Southern Company (NYSE – SO) and is a member of The Florida Council of 100.

He earned a Bachelor of Arts degree in English from the College of the Holy Cross in 1984 and previously served as a member of the College’s Board of Trustees. He also earned a Masters of Business Administration degree from the Amos Tuck School of Business Administration at Dartmouth College in 1989 and has served as a member of the MBA Advisory Board.


Phone: 941.373.0033


  • Southern Company (NYSE – SO), Director
  • Presidential Appointment - National Infrastructure Advisory Council, Member
  • Business Executives for National Security, Member
  • World President’s Organization, Member
  • Gateway Bank of Southwest Florida, Director
  • Sheriff’s Meadow Foundation, Director 
  • United States Tennis Association (USTA), Investment Committee Member
  • The Florida Council of 100
  • Newcastle Investment Corporation (NYSE - NCT), Director
  • TerreStar Corporation (NASDAQ – TSTR) (formerly Motient Corporation), Director
  • Tower Cloud Corporation, Director
  • The Amos Tuck School of Business, MBA Advisory Board
  • Pension Reserves Investment Management Board of Massachusetts, Investment Committee Chair
  • New England Cable News
  • Fox Sports New England
  • Greater Boston Chamber of Commerce
  • AT&T Corporation Foundation
  • Emerson College, Board of Trustees
  • OBAMA For America, National Finance Committee
  • Young Presidents’ Organization, Florida Chapter
  • State Board of Administration, Florida – Chairman, Investment Advisory Council
  • College of the Holy Cross, Board of Trustees