Alex Gellman is a Senior Advisor to Digital Colony and the CEO of Vertical Bridge, the largest private owner and operator of wireless communications infrastructure in the U.S. Mr. Gellman is also one of the Co-founders of Digital Bridge.
Prior to co-founding Vertical Bridge, Mr. Gellman was President and COO of Global Tower Partners, the largest privately held tower company in the U.S. Mr. Gellman was instrumental in the sale of Global Tower Partners to American Tower Corporation in 2013 for over $4.8 billion. Previously, Mr. Gellman has been involved in many successful ventures, including Sonitrol Corporation, a leading provider of verified electronic security in North America where he served as President and COO until its sale to Stanley Works.
Mr. Gellman also co-founded Apex Site Management, the largest third-party manager of wireless and wireline communications sites in the U.S. Apex merged with SpectraSite Communications to create the largest telecommunications site portfolio in the U.S. Following the merger, Mr. Gellman served as President and CEO of SpectraSite-Transco Communications, Ltd., a joint venture between SpectraSite and British Gas to develop tower sites in the U.K.
Mr. Gellman previously served as Vice President - Development and a co-founder of Horizon Cellular Group, a start-up backed by McCaw Cellular to acquire, develop and operate rural cellular franchises in the eastern U.S.
In addition to his role as a Senior Advisor to Digital Colony, Mr. Gellman serves on the Board of Directors of FreshWave and Highline.
Mr. Gellman received a Bachelor of Science in Biology from Tufts University in 1983 and an MBA in Finance and Accounting from The Wharton School of the University of Pennsylvania in 1988.