Mark Cahill


Mark Cahill brings over 35 years of diverse business experience in management, finance, operations, sales, and marketing to his role as general manager, including significant experience in aviation, aerospace and defense, high tech, traditional manufacturing, and professional services companies.

"The fast-moving biogas industry brings with it an ongoing stream of new obstacles, challenges—and opportunities.  ESI has met every new bend in the road with innovative approaches and solutions that have consistently led the market in terms of project performance—both delivering on and exceeding ROI expectations.  I'm thrilled to join the ESI team. "

Mark has worked with diverse business organizations from Fortune 500 subsidiaries to entrepreneurial startups improving profitability through innovation and process improvements—including the implementation of lean business practices and cultures. 

With deep experience in determining the key success factors unique to each business—and executing on strategy—Mark has a proven track record delivering profitability and operational efficiency throughout his career.