Ameresco Earns National Association of Energy Service Companies Reaccreditation

National Trade Organization recognizes Ameresco’s technical and business expertise with renewed Energy Services Provider accreditation

Framingham, MA – Ameresco, Inc. (NYSE:AMRC), a leading energy efficiency and renewable energy company, announced today it has been reaccredited by the National Association of Energy Service Companies (NAESCO), the national trade organization that represents the energy services industry. Ameresco’s solutions include efficiency upgrades to facility energy infrastructure, Energy Supply Management and the development, construction, and operation of alternative energy sources. This is Ameresco’s fourth consecutive NAESCO accreditation.

Energy service providers help to pinpoint gaps in energy efficiency and opportunities for renewable energy and to optimize energy supply, whether for a single facility or an entire real estate portfolio. Calling upon a wealth of expertise and experience, Ameresco generates holistic energy efficiency and renewable energy solutions for customers. Providing expertise in projects across North America, from auditing to designing and building, all the way through to facility operations and maintenance, Ameresco is one of the largest independent energy services companies throughout North America.

“Ameresco passed what is a very stringent accreditation process and we applaud their continued track record of success,” said Terry E. Singer, Executive Director of NAESCO. “In accreditation, NAESCO recognizes companies for the technical and managerial competence to develop comprehensive energy efficiency projects, services, financing, design engineering, operations and maintenance services, and verifying energy savings according to accepted industry practice.”

“We are honored that NAESCO has reaccredited Ameresco and reaffirmed our continued commitment to customer satisfaction and service,” said George Sakellaris, president and chief operating officer of Ameresco. “Ameresco’s project portfolio has expanded over the years because our team of experienced and dedicated experts puts customer satisfaction first. In the years to come, we will use this accreditation to build further on our successes and to ensure that our customers get the results they are looking for.”

Ameresco was first granted energy service provider accreditation from NAESCO in 2001 and has since maintained its status. Accreditation is bestowed in three year intervals. The Accreditation Committee is comprised of knowledgeable industry experts who are unaffiliated with the companies under review. Multiple customer references are checked by the Accreditation Committee which also reviews extensive project documentation. The stringent level of data review and resource information verification distinguishes NAESCO’s accreditation requirements from those of other accreditation organizations.

About Ameresco, Inc.
Ameresco, Inc. was incorporated in Delaware in April 2000 and is a leading independent provider of comprehensive energy efficiency and renewable energy solutions for facilities throughout North America. Ameresco’s solutions include upgrades to a facility’s energy infrastructure, and the development, construction, and operation of renewable energy plants. With corporate headquarters located in Framingham, MA, Ameresco has 55 offices in 29 states and four Canadian provinces. For more information, visit www.ameresco.com.

About NAESCO
NAESCO is a national trade association comprised of ESCOs, utilities, equipment vendors, financial institutions and global organizations involved in the delivery of energy efficiency. Founded in 1983, NAESCO strongly promotes to federal and state legislators and regulators the benefits of distributed resources, including energy efficiency, in an evolving market. In addition, NAESCO works to help open new markets for energy services by directly promoting the value of demand reduction to customers through seminars, workshops, training programs, publication of case studies and guidebooks, and the compilation and dissemination of aggregate industry data. Additional information about NAESCO and the accreditation program can be found at www.naesco.org.