Tom McCloskey is the Chairman and CEO of Cornerstone Holdings, a private investment firm focused on real estate and direct investments, and Chairman of Urban Green Investments in San Francisco. Investments include Magna Energy Services, Petro Cloud (oil and gas), and bMedia (outdoor advertising). Cornerstone actively owns, manages and develops real estate in several markets across the United States including Colorado, the San Francisco Bay Area, Hawaii, and New York State. Tom served as chairman of Horizon Organic Holdings (HCOW) the world’s largest organic dairy company from 1993 to 2004, and a director of Palmer Wireless (PWIR). He founded the McCloskey Business Plan Competition at the


Tom Mccloskey
Chairman/CEO
Cornerstone Holdings LLC
United States, California, San Francisco
About Me
Profile Information
Chairman/CEO
Cornerstone Holdings LLC
Investment Team
Investor
Family Office
San Francisco
California
United States
Aug 13, 2025
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