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Report reflects a quarter century of results – over $16 billion in energy solutions delivered, 140+ million cumulative metric tons of CO₂e avoided, over 3,700 employee volunteer hours, and continued momentum across sustainability, workforce development, and governance
FRAMINGHAM, MA – April 27, 2026 – Ameresco, Inc., (NYSE: AMRC), a leading energy infrastructure solutions provider, today announced the release of its 2025 Impact Report centered on the theme of “25 Years of Impact.” The report details fiscal year 2025 performance and progress across Ameresco’s three impact pillars – People, Planet, and Policy – underpinned by a quarter century of delivering solutions that reduce energy costs, strengthen resilience, and create lasting value.
“Since 2000, Ameresco has operated on the belief that sustainability, resilience, and sound financial decision-making are fundamentally connected,” said George Sakellaris, Chairman of the Board and Chief Executive Officer of Ameresco. “Our twenty-fifth year in business reflected that conviction, backed by a best-in-class team who deliver long-term value to our customers. I am proud of the impact we continue to make and excited by the scale of what’s ahead in energizing a sustainable world.”
Key highlights from the 2025 Impact Report include:
- People: People are the foundation of Ameresco’s success, and central to the Company’s 25 years of impact. Through our One Ameresco culture, we foster creativity and collaboration across a global team, invest in mentorship, training, safety, and employee satisfaction, and extend our C.A.R.I.N.G. values into the communities we serve.
- Planet: Ameresco’s track record is defined by helping customers navigate real-world energy challenges: reducing consumption, improving resilience, and lowering emissions at scale. Approximately 18 million metric tons of carbon dioxide equivalent were avoided during 2025 from Ameresco’s owned energy assets and customer projects. We continue to advance our customers’ climate action journeys and measure our own carbon footprint amid an increasingly complex energy landscape.
- Policy: Good governance is essential to Ameresco’s sustainable growth and 25-year track record of execution. From Board oversight and risk management to cybersecurity, compliance, and responsible public policy engagement in a dynamic regulatory environment, our practices are built on transparency, accountability, and the highest ethical standards.
“Impact is about whether what we build matters over time: helping customers lower energy use, improve reliability, and meet their goals in a way that lasts,” said Mark Chiplock, Executive Vice President, Chief Financial Officer, and Executive Chair of Ameresco’s Ambassadors of Impact. “This year’s Impact Report reflects on our continued commitment to responsible growth, measurable progress, and strong governance as the global energy transition accelerates.”
To view the 2025 Impact Report, please visit: https://www.ameresco.com/2025-impact-report/
About Ameresco, Inc.
Founded in 2000, Ameresco, Inc. (NYSE:AMRC) is a leading energy infrastructure solutions provider dedicated to helping customers reduce costs, enhance resilience, and decarbonize to net zero in the global energy transition. Our comprehensive portfolio includes implementing smart energy efficiency solutions, upgrading aging infrastructure, and developing, constructing, and operating distributed energy resources. As a trusted full-service partner, Ameresco shows the way by reducing energy use and delivering energy infrastructure solutions to Federal, state and local governments, utilities, data centers, educational and healthcare institutions, housing authorities, and commercial and industrial customers. Headquartered in Framingham, MA, Ameresco has more than 1,500 employees providing local expertise in North America and Europe. For more information, visit www.ameresco.com.
