Meet Our Investments Team

MassCEC's Investments Team brings decades of experience in the clean energy and venture capital sectors. Learn more about our team members below, and be sure to check out our Invesment Program.



Tibor Toth, Managing Director of Investments

Tibor TothTibor has over 20 years of private equity and venture capital investment and entrepreneurial experience, and has led the Investments Division at MassCEC since 2013.  Tibor has focused in the clean energy sector since early 2010, when he joined a clean energy company, QGEN, as its chief financial officer. Previously, Tibor worked at Babson Capital, Ascent Venture Partners, Lee Capital and Berkshire Partners. Tibor is an adjunct professor at the Brandeis International Business School and serves as a director or observer on several corporate and non-profit Boards. Tibor holds a Bachelor of Science in Management Science from the Massachusetts Institute of Technology, completed the Masters of Management and Manufacturing (MMM) program at Northwestern University, receiving a Master of Business Administration from the Kellogg School and a Master of Engineering Management from the McCormick School. Tibor is a Chartered Alternative Investment Analyst charter holder. You can contact Tibor at or 617-315-9345.



Alison Ernst, Senior Manager of Investments

Alison ErnstAlison has worked at MassCEC since 2013 , evaluating and managing investments in clean technology startups across all sectors of the industry. Alison also manages MassCEC's Catalyst program, which provides grants for prototype development, and AmplifyMass program, which provides cost share for ARPA-E recipients in Massachusetts. Prior to her time at MassCEC, Alison worked as an engineer, developing, designing and constructing utility-scale power plants at Indeck Energy Services, completing projects in the wind, solar, biomass and natural gas sectors. Alison received her Master of Business Administration from Harvard Business School, focusing on energy, the environment and entrepreneurial finance. During graduate school, she worked for multiple clean energy startups in the New England area, developing market expansion strategies. Alison holds a Bachelor of Science in Mechanical Engineering from Duke University, and also serves on the boards of several clean energy companies. You can contact Alison at or 617-315-9389



Emil Mamedov, Senior Manager of Investments

Emil MamedovEmil brings over nine years of experience to MassCEC, spanning venture capital, consulting and energy finance.  Previously, he was Manager of Strategy and Innovation at Liberty Mutual, where he developed corporate venture theses and sourced technology companies in the insurance technology space.  Prior to Liberty Mutual, he worked at BTU Ventures, an international private equity fund, evaluating clean energy investment opportunities in the United States and abroad. Earlier in his career, Emil spent time with General Catalyst Partners sourcing, evaluating and performing due diligence on investments in the clean energy technology sector, and served as a consultant with IBM. His areas of interest include applications of software, data analytics, and artificial intelligence to industrial and manufacturing settings to enable energy efficiency. Emil holds a Master of Business Administration from the Massachusetts Institute of Technology's Sloan School of Management with concentration on venture capital and private equity.  He received his Bachelor of Science in Finance from Oklahoma State University. You can contact Emil at or 617-712-1115


Kathryn Elmes, Investment Associate

Kathryn has worked to support clean technology startups since 2014. Prior to joining the MassCEC Investments Team, Kathryn served as the Director of Cleantech Open Northeast, the global accelerator for early-stage clean technology startup companies run by the Northeast Clean Energy Council (NECEC), after having served as the Director of Operations for the Worcester Cleantech Incubator (WCTI). Before joining the clean energy innovation ecosystem, she taught for Clark University and Saint Joseph’s University’s Haub School of Business. Kathryn received a PhD from the Graduate School of Geography at Clark University, MSc in International Development: Environment and Development from the University of Manchester (UK), MA in Geography, and BA in Geography and Peace and Conflict Studies from Colgate University. You can contact Kathryn at or 617-315-9329




Xi Xi, Investment Analyst

Xi Xi joined the MassCEC Investments Team as a new graduate from Wellesley College. Previously, she has worked at Massachusetts Department of Environmental Protection as an intern for the Climate Strategies Group. She also worked at the Sustainability Office at Wellesley College, coordinating campus sustainability initiatives. Xi Xi received her B.A. from Wellesley College with a major in Mathematics and a minor in Environmental Studies.You can contact Xi Xi at or 617-315-9334