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John T. Preston - Managing Partner

Roger S. Berry - Partner

 
 

John T. Preston - Managing Partner

John T. Preston is a founder of TEM Capital as well as CEO of Continuum Energy Technologies LLC (CET) and a Senior Lecturer at M.I.T.  Mr. Preston’s primary expertise is in energy, environment, technology, and entrepreneurship. Before starting CET, Mr. Preston was the Director of Technology Development (and Licensing) at M.I.T., where he was responsible for the commercialization of intellectual property developed at M.I.T. In that capacity, he oversaw activities that led to the creation of hundreds of new technology-based companies as well as the negotiation of thousands of licenses with existing companies. He also oversaw many complex negotiations including the creation of the U.S. standard for high definition television, while representing M.I.T. on the HDTV Grand Alliance. 
           
Mr. Preston was awarded the rank of “Knight of the Order of National Merit of France” by French President Mitterrand.  He was awarded the “Hammer Award for Reinventing Government” by Vice President Gore.  He is the recipient of numerous other awards and honors including the Thomas Jefferson Award, given to the leading American in technology transfer and the Renaissance Engineering and Science award from Stevens Institute of Technology.  Mr. Preston is Honorary Alum of the Massachusetts Institute of Technology.

Mr. Preston received a B.S. in physics from the University of Wisconsin and a M.B.A. from Northwestern University. 

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Roger S. Berry - Partner

Roger Berry is a Partner with TEM Capital, and is responsible for the development of the company’s investment funds, managing partnerships with investors and sourcing new transaction opportunities.

Roger was formerly the Head of Group Funds and Investor Relations for Climate Change Capital, a fund manager that had over $1.6 billion of assets under management. From 2000 to 2006, Roger was a Managing Partner and co-founder of Liberty Global Partners, an advisory and placement firm focused exclusively on emerging markets private equity. Liberty Global Partners helped to raise significant commitments from institutional investors and played a lead role in the creation of the Emerging Markets Private Equity Association. For over eighteen years, Roger has been immersed in the opportunities and challenges of transitional markets. He brings skills in negotiation, facilitation, and marketing, and has advised companies, investors, or governments in Africa, Asia, Eastern Europe, Latin America, and the Middle East.
 
Roger is a graduate of Harvard University (1990).

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