Ameresco Executive and Leadership Team

Mark Chiplock, the Executive Vice President & Chief Financial Officer & Chief Accounting Officer at Ameresco, manages the company's comprehensive financial operations and fiscal strategy. Chiplock oversees all aspects of financial planning, accounting, and reporting, ensuring robust fiscal health and compliance across Ameresco's global operations. This critical role involves managing capital allocation, investor relations, and financial risk mitigation for energy efficiency and renewable energy projects. The Executive Vice President & Chief Financial Officer & Chief Accounting Officer provides strategic financial guidance to support Ameresco's growth initiatives and asset development in North America and Europe. By maintaining rigorous financial controls and optimizing financial performance, Chiplock ensures the long-term sustainability and profitability of the company. Mark Chiplock's leadership is fundamental to Ameresco's ability to secure funding and deliver value to its stakeholders.

Peter Christakis, the Chief Operating Officer at Ameresco, directs the company's extensive operational framework. Christakis oversees the execution of energy efficiency projects, infrastructure upgrades, and the development of renewable energy assets across North America and Europe. This leadership role ensures seamless project delivery and operational excellence, aligning with Ameresco's commitment to sustainability and client satisfaction. By optimizing resource allocation and project management methodologies, the Chief Operating Officer drives efficiency throughout the organization. Christakis's strategic oversight guarantees that Ameresco's cleantech solutions are implemented effectively, meeting stringent performance standards and contributing to the company's overall growth and market leadership. The operational scope includes managing diverse project teams and ensuring adherence to safety and environmental protocols, solidifying Ameresco's reputation as a leading integrator.

Louis Maltezos, the President, Central & Western , Regions (USA, Canada) at Ameresco, spearheads business development and operational oversight for key North American territories. Maltezos drives the expansion of Ameresco's cleantech solutions, including energy efficiency and renewable energy projects, within the central and western United States and Canada. This executive role involves cultivating strategic partnerships and ensuring client success across a broad geographic footprint. The President, Central & Western , Regions (USA, Canada) leads regional teams to achieve ambitious growth targets and deliver exceptional project outcomes. By understanding regional market dynamics, Maltezos tailors Ameresco's offerings to meet specific client needs and regulatory environments. Louis Maltezos's leadership is instrumental in extending Ameresco's impact and solidifying its market presence in these vital economic zones.

Michael Bakas, the President, Renewable Fuels at Ameresco, directs the strategic development and operational execution of the company's renewable fuels initiatives. Bakas oversees the entire lifecycle of renewable fuel assets, from project conception and financing to operation and optimization, contributing significantly to Ameresco's sustainability portfolio. This leadership function is crucial for advancing Ameresco's commitment to decarbonization and the energy transition across North America and Europe. The President, Renewable Fuels drives innovation in biofuel technologies and ensures compliance with evolving industry standards and environmental regulations. By fostering key industry relationships and identifying new market opportunities, Bakas strengthens Ameresco's position in the renewable energy sector. Michael Bakas's expertise is vital for expanding Ameresco's impact in the critical area of renewable fuels.

Leila Dillon, the Chief Marketing Officer & Senior VP at Ameresco, architects the company's global brand strategy and market positioning. Dillon leads all marketing initiatives, driving demand generation and enhancing Ameresco's visibility as a premier cleantech integrator. This executive function encompasses developing compelling narratives around energy efficiency, renewable energy, and sustainability solutions for clients in North America and Europe. The Chief Marketing Officer & Senior VP ensures consistent brand messaging across all platforms, fostering strong client relationships and expanding market reach. By analyzing market trends and customer needs, Dillon guides the development of targeted campaigns that highlight Ameresco's innovative offerings. This strategic leadership supports the company's mission to deliver impactful energy solutions and reinforces its position as an industry leader. Leila Dillon's expertise is crucial in communicating the value of Ameresco's comprehensive portfolio.

Lenka Patten, the Chief Human Resources Officer & Senior VP at Ameresco, directs the company's human capital strategy and organizational development. Patten oversees all HR functions, including talent acquisition, employee engagement, and compensation, ensuring a high-performing workforce aligned with Ameresco's mission. This leadership position focuses on cultivating a culture of innovation and collaboration essential for delivering advanced cleantech solutions across North America and Europe. The Chief Human Resources Officer & Senior VP champions employee development programs and ensures compliance with labor laws, fostering a supportive and productive work environment. By attracting and retaining top talent, Patten directly contributes to Ameresco's capacity to execute complex energy efficiency and renewable energy projects. Lenka Patten's strategic approach to HR strengthens the company's foundation and supports its ambitious growth objectives.