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David H. Long

Also Known As David Long

David H. Long's profile picture

Long started with Liberty Mutual in 1985 and has held positions in areas of underwriting and financial, mergers and acquisitions, international operations, and commercial markets during the thirty-three years he has been with the company. Among his titles are president, executive vice presidents, of Commercial Markets; and chief operating officer in National Markets. He is also a founding member of Liberty Mutual Agency Corporation. He was an active participant in the company’s acquisition of Golden Eagle, Peerless Insurance, Summit, Colorado Casualty and Indiana Insurance. At the end of 2022, he has declared that he would be retiring. In January 2023, Timothy M. Sweeney will take over as CEO.

Long is married to Stephanie Isgur Long, a fellow Hartwick graduate.

Long owns a $2.3 million 5,700-square-foot home on the island of Nantucket. In 2018, he hired a lawyer from Mintz, Levin, Cohn, Ferris, Glovsky, and Popeo to lobby state environmental officials to block the building of a dormitory for seasonal employees of the Miacomet Golf Course

n 2012, Long famously spent $4.5 million to renovate his 1,335-square-foot office at the Liberty Mutual headquarters in Boston, Massachusetts

Early Life

David H. Long born 1961 in Liverpoo 

is an American and British businessman who is the CEO and chairman of Liberty Mutual Insurance ( LBTYA) Group. In September 2014 the Obama administration announced its intention to appoint Long to be a member of the Advisory Committee for Trade Policy and Negotiations

, Long received his BA in mathematics from Hartwick College in 1983. He received a master's degree in 1989 in finance from Boston College. In 1985 Long was hired by Liberty Mutual Insurance Group as a financial analyst in National Accounts.                                  


  • BA in mathematics from Hartwick College -
  • :master's degree Boston College. -


  • Mutual Insurance Group - Chairman
  • Mutual Insurance Group - CEO