Ameresco, Inc. is a provider of energy efficiency, infrastructure upgrades, asset sustainability and renewable energy solutions for businesses and organizations. The Company operates throughout North America and Europe. It is engaged in the development, design, engineering and installation of projects that reduce the energy. The Company's segments include U.S. Regions, U.S. Federal, Canada, Small-Scale Infrastructure and All Other. It also assists customers in obtaining third-party financing. Its service includes energy efficiency projects, which involves the design, engineering and installation of, and the arranging of financing for equipment to improve the energy efficiency and control the operation of a building's heating, ventilation, cooling and lighting systems. Its service offering also includes the sale of electricity, processed landfill gas (LFG), heat or cooling from the portfolio of assets that it owns and operates.