Corporate Profile


Ameresco, Inc. (NYSE:AMRC) is a leading independent provider of comprehensive energy services, including energy efficiency, infrastructure upgrades, energy security and resilience, asset sustainability and renewable energy solutions for businesses and organizations throughout North America and Europe. Ameresco’s sustainability services include capital and operational upgrades to a facility’s energy infrastructure and the development, construction, ownership and operation of renewable energy plants.

Ameresco has successfully completed energy saving, environmentally responsible projects with Federal, state and local governments, healthcare and educational institutions, housing authorities, and commercial and industrial customers.

With its corporate headquarters in Framingham, MA, Ameresco has more than 1,000 employees providing local expertise in 70 offices throughout the United States, Canada, and the United Kingdom.



Ameresco was founded in 2000 by George Sakellaris, a pioneer in the energy service business. Mr. Sakellaris’ vision for Ameresco was to create a flexible and nimble independent company that provides its customers a broad range of customer-focused services with the stability to deliver on its promises. This vision has been instrumental in Ameresco’s position at the forefront of influencing and reshaping the industry, and delivering customer satisfaction. In addition to organic growth, strategic acquisitions of complementary businesses and assets have been an important part of our development, and have enabled us to broaden our service offerings and expand our geographical reach.


Ameresco’s customers benefit from the experience and leadership of our executive management team. At the Company’s foundation is a staff comprised of the industry’s most talented, experienced, innovative and technical professionals. The team’s project experience and expertise includes energy conservation, consulting, and implementation services; supply and risk management; energy information efficiency and productivity improvement services; the development, implementation and operations and maintenance of small to large generation including cogeneration; and renewable and sustainable energy strategies.


As a comprehensive energy solutions company, Ameresco provides value-added energy efficiency, renewable energy, and infrastructure upgrade solutions to support our customers’ unique requirements. Our core business is the development, design, engineering and installation of projects that reduce the energy and operations and maintenance (O&M) costs of our customers’ facilities. These projects generally include a variety of measures that incorporate innovative technology and techniques, customized for the facility and designed to improve the efficiency of major building systems, such as heating, ventilation, cooling and lighting systems, while enhancing the comfort and usability of the buildings. Such measures may include a combination of the following: water reclamation, light-emitting diode (LED) lighting, smart metering, intelligent micro-grids, battery storage, combine heat and power (CHP), the installation of renewable energy, such as solar photovoltaic (PV), and distributed energy options.

With a dedicated team of energy and business professionals with years of experience and strong commitment to customer satisfaction and service, Ameresco also offers budget-neutral solutions and provides the resources needed to successfully plan, execute and assist with financing each customer’s energy project.



Ameresco is a NAESCO accredited energy services provider.

accreditation-1 George Sakellaris, President and CEO of Ameresco was one of the founding members of NAESCO, and served as its president for several years. NAESCO accreditation is a rigorous examination of a company’s core competencies and business practices. The examination includes an evaluation of the precise nature of the applicant's business; the range of measures and services offered; the availability of a performance-based project approach; ethical business practice commitment; project engineering and design, assistance with financing, project management, operations and maintenance, and measurement and verification capabilities.


Ameresco is pre-qualified through both the U.S. Department of Energy and the U.S. Department of Defense.
accreditation-2 Ameresco has held this designation each year the federal agencies have pre-qualified firms. These qualifications are based on independent evaluations, which included a review of our experience and technical capabilities, energy baseline and savings calculation capability, organization and management capabilities, and financial condition and resources. Ameresco holds multiple IDIQ contracts with the U.S. Department of Defense, the US Army Corp, the U.S. Department of Energy, and the U.S. General Services Administration. These contracts cover traditional energy savings performance contracts, renewable energy, O&M, and repair and rehabilitation.