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James Eisenstein, L’83

Chairman and CEO of Grupo TorreSur

James Eisenstein is the current Chairman and CEO of Grupo TorreSur, a mobile tower operator in Brazil.  Formed in October 2010, GTS is the largest independent wireless tower company in Brazil, owning and operating over 6,000 towers throughout the country. 

He is the former Chairman and CEO of Optasite, Inc., which he took over at the end of 2003 and transformed the company from a struggling wireless services provider into the nation’s second largest privately held wireless tower company, with nearly 600 strategically located towers in the United States, Puerto Rico and the U.S. Virgin Islands.

Eisenstein was also the Co-founder and Chief Development Officer of American Tower Corporation, the largest owner and operator of wireless and broadcast towers in North America.  Einstein has also held executive leadership roles at several wireless and broadcast communications firms, including Concourse Communications Group, LLC, a leading developer and operator of distributed antenna systems for some of the nation’s largest transportation venues. He has been responsible for raising more than $3 billion in capital for infrastructure projects over his career.

Eisenstein has more than 20 years of business and telecommunications experience, and is an accomplished serial entrepreneur.  He serves on the Board of Directors of the Wireless Infrastructure Association (WIA).