Beacon Capital Partners is a Boston-based real estate investment firm founded in 1998 by Alan M. Leventhal and former Beacon Properties senior management team following the $4 billion acquisition of Beacon Properties by EQ Office. The firm operates with a 75-year institutional real estate legacy through its predecessor companies, The Beacon Companies (founded 1946) and Beacon Properties Corporation (1994-1997). Beacon Capital manages a portfolio of 38 million square feet across office and life science properties with $14.8 billion in assets under management as of 2026. Since inception, the firm has raised over $19 billion in equity through nine investment vehicles, co-investments, and joint ventures. The firm's investment strategy centers on value-added acquisitions, development, and repositioning of office buildings and life science facilities in gateway markets. Beacon Capital operates across 14 major U.S. markets including Boston, Chicago, Denver, Houston, Los Angeles, New York, San Francisco, Seattle, Washington D.C., Austin, Boulder, Atlanta, Salt Lake City, and Philadelphia. The firm has acquired over 111 million square feet through portfolio and single-building transactions. Recent transactions include the May 2025 acquisition of a 25% stake in One Front, a San Francisco office tower, for $255 million, the January 2022 purchase of 1800 Larimer in Denver for $291 million, and the April 2024 acquisition of 333 West Wacker in Chicago for $125 million with a $32 million renovation completed by August 2025. Geographic concentration is distributed across 14 markets, with holdings in Boston, Chicago, and San Francisco representing a portion of the portfolio.