Ameresco Executive and Leadership Team

Mark Chiplock, the Executive Vice President & Chief Financial Officer & Chief Accounting Officer at Ameresco, directs the financial strategy and accounting operations of the organization. Overseeing capital allocation, financial reporting, and fiscal compliance, the Executive Vice President & Chief Financial Officer & Chief Accounting Officer ensures the long-term financial health of the company. This leadership role involves managing investor relations and providing the financial oversight necessary for large-scale renewable energy asset development. By maintaining rigorous accounting standards, Mark Chiplock directly impacts the transparency and stability of the firm's financial position. Chiplock works closely with the Board to evaluate the economic viability of new infrastructure projects across North American and European markets. Through the management of financial risk and capital structure, the Executive Vice President & Chief Financial Officer & Chief Accounting Officer supports the company's growth objectives. Ultimately, Chiplock secures the necessary funding to advance the firm's cleantech mission.

Peter Christakis, the Chief Operating Officer at Ameresco, directs all internal business operations and project execution workflows. Overseeing the deployment of complex energy efficiency and infrastructure upgrades, the Chief Operating Officer ensures that every cleantech project meets rigorous performance standards. This leadership role involves managing the technical teams responsible for renewable energy asset development across North American markets. By optimizing operational efficiency, Peter Christakis directly impacts the scalability of the company's energy solutions. Christakis coordinates with the broader executive team to align project delivery with the overarching corporate mission of sustainability. Through the management of field operations and engineering resources, the Chief Operating Officer maintains the high quality of service expected by clients. Ultimately, Christakis drives the operational excellence required to support the growth of the renewable energy portfolio while ensuring consistent project profitability and client satisfaction throughout the entire project lifecycle.

Leila Dillon, the Chief Marketing Officer & Senior VP at Ameresco, architects the global brand strategy and market positioning for the firm. Overseeing the communication of complex cleantech value propositions, the Chief Marketing Officer & Senior VP ensures that the company's renewable energy solutions reach key decision-makers in North America and Europe. This leadership role involves managing corporate branding, digital outreach, and strategic market expansion initiatives. By crafting targeted messaging, Leila Dillon directly impacts the firm's ability to secure new energy efficiency contracts. Dillon collaborates with the executive leadership to translate technical innovations into compelling market narratives. Through the development of comprehensive marketing campaigns, the Chief Marketing Officer & Senior VP strengthens the market presence of the organization. Ultimately, Dillon secures a competitive advantage by highlighting the unique benefits of the company's asset sustainability and renewable energy services to a diverse client base.

Lenka Patten, the Senior Vice President and Chief Human Resources Officer at Ameresco, directs the talent acquisition, organizational development, and employee engagement strategies. Overseeing the cultivation of a high-performance culture, the Senior Vice President and Chief Human Resources Officer ensures that the workforce possesses the technical expertise required for complex energy efficiency projects. This leadership role involves managing human capital initiatives across the company's diverse operational regions. By implementing robust training and development programs, Lenka Patten directly impacts the retention of top-tier talent in the competitive cleantech sector. Patten collaborates with the executive team to align workforce capabilities with the strategic goals of the organization. Through the management of organizational structure and performance management systems, the Senior Vice President and Chief Human Resources Officer fosters an environment of innovation and excellence. Ultimately, Patten secures the human capital necessary to drive the company's long-term success in the renewable energy industry.