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Clean Engines International

We deliver dramatic operational savings and pollution reduction for commercial motorcycle taxis and delivery fleets in emerging markets.

  • Stage Full Product Ready
  • Industry Clean Technology
  • Location Fort Collins, CO, USA
  • Currency USD
  • Founded May 2010
  • Employees 18
  • Website

Company Summary

CEI is an execution stage,triple bottom line company.We will be a global leader in cutting pollution generated by hundreds of millions of “dirty” gasoline and diesel engines in emerging market cities, while improving the lives of our customers and providing risk-commensurate financial returns for investors.We focus on design, production, marketing and sale of low cost upgrade kits to convert engines to clean-burning gaseous fuels.


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    William James Kramer

    Bill has worked on business sustainability and business model theory and practice directed to emerging market low-income customers for more than a decade. At World Resources Institute, he was a senior member of the team that created a global movement on BOP policies and practices. He is co-author of the pioneering study, The Next 4 Billion: Market Size and Business Strategy at the Base of the Pyramid, co-published by WRI and the IFC.

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    Gregory S Herman
    Chief Operating Officer

    Greg had a 30-year career at HP, as VP, Global Supply Chain, Desktop PC’s and Workstations. Prior to that, Greg led “start-ups” to design and manufacture large format printers and to introduce advanced technology inkjet printers. He has proven leadership in operational excellence, effective cross-functional relationships and global teams, managing outsourced design and manufacturing with world-class EMS/ODM partners and building future leaders.

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    David B Williams
    Founder/EVP, Marketing

    David has lived and worked in Asia for 13 years, including 5 in Manila, managing the introduction of 2-stroke retrofit technology from the NGO, Envirofit. During his eight years in Vietnam, he founded and operated the region’s first factory producing motorcycle helmets, after five years working on major IT systems for the US Embassy and international hotel chains. He oversees product rollout and market development, working from Manila.

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    Donald C Leonard
    Board Chair

    Don holds a BSME and spent more than a decade in aerospace.A pioneer in electronic banking, he helped develop national consumer financial transaction processing systems. More than 40 years of management consulting and entrepreneurial experience, assisting sustainable, alternative energy and clean-tech startups with strategic planning and capital formation activities, serving often in management. He is a former member of Tech Coast Angels.


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    Faegre Baker Daniels, Boulder Colorado

Previous Investors

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    DuWayne Peterson
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    Robert McG. Lilley
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    Tony Barclay