David Grain

David J. Grain (born May 31, 1962) is an American entrepreneur, businessman, and philanthropist. He is the current chief executive officer (CEO) of the global investment firm Grain Management LLC, which he founded in 2007 and is headquartered in Washington D.C. His firm invests exclusively in the telecommunications sector, using what the firm refers to as "algorithmic, computational investment analysis" to inform its investment decisions.

Early life and education Grain was born in Brooklyn, New York, to Dora and Walter Grain. He graduated from the College of the Holy Cross in Worcester, Massachusetts, with a Bachelor of Arts in English in 1984. He became principal after two years with the company, and continued his work there until moving on to AT&T in 2000. He served as the New England region's Senior Vice President until 2003, and then as President of Pinnacle Holdings, Inc. until 2005, while simultaneously serving as director of Newcastle Investment Corporation. During his short tenure at Pinnacle Holdings, he was able to rescue the company from bankruptcy and grew its portfolio from 2,000 sites to over 11,000.

Grain sits on multiple boards of directors and councils, serving as an Independent Director of Dell Technologies and Director of New Fortress Energy and Trustee of the Brookings Institution. Grain sits on the board of directors for the Martha's Vineyard Museum and serves on the advisory council for the National Museum of African American History and Culture.

Grain received a presidential appointment to the National Infrastructure Advisory Council in 2011, where he chaired the Critical Infrastructure Security and Resilience National R&D Plan, and he was appointed to the council again in 2024.

In 2009, the Governor of Florida appointed Grain to the State Board of Administration’s Investment Advisory Council where he served as Chairman. He is also a lifetime member of the Council on Foreign Relations.

Grain is known for his political support of the Democratic Party. He contributed a minimum of $200,000 to $500,000 in the 2008 elections.

Grain has been a member of the Board of Trustees of Dartmouth College since July 1, 2024. He also served for eight years as a Trustee of College of the Holy Cross.

In 2024, Grain received A Better Chance’s Chairperson Award.

Achievements Grain has been recognized as one of the "Top 40 leaders under 40" in Boston by the Boston Business Journals. He was also given the "Ten Outstanding Young Leaders Award" by Boston Jaycees.

Personal life Grain is married to Dr. Lisa Grain.