Ameresco, Inc. Announces Pricing of Initial Public Offering

FRAMINGHAM, Mass.--(BUSINESS WIRE)-- Ameresco, Inc. (NYSE:AMRC) today announced the pricing of its initial public offering of 8,696,820 shares of its Class A common stock at $10.00 per share. Of the shares being sold, Ameresco is selling 6,000,000 shares and selling stockholders are selling 2,696,820 shares. Ameresco will not receive any proceeds from the sale of shares by the selling stockholders. The underwriters have the option to purchase up to 1,044,523 additional shares from Ameresco and up to 260,000 additional shares from certain selling stockholders at the initial public offering price, less the underwriting discount, to cover overallotments, if any. Ameresco's Class A common stock will begin trading on July 22, 2010 on the New York Stock Exchange under the symbol "AMRC." The offering is expected to close on July 27, 2010.

BofA Merrill Lynch is acting as the sole book-running manager. RBC Capital Markets is acting as lead manager for the offering, and Oppenheimer & Co., Canaccord Genuity, Cantor Fitzgerald & Co., Madison Williams and Company and Stephens Inc. are acting as co-managers of the offering.

A registration statement relating to these securities has been filed with, and declared effective by, the Securities and Exchange Commission. The offering of these securities may be made only by means of a prospectus. A copy of the final prospectus relating to the offering, when available, may be obtained from BofA Merrill Lynch at 4 World Financial Center, New York, NY 10080, Attn: Prospectus Department, or by emailing dg.prospectus_requests@baml.com.

This press release shall not constitute an offer to sell or the solicitation of an offer to buy, nor shall there be any sale of these securities in any state or jurisdiction in which such an offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.

About Ameresco, Inc.

Ameresco, Inc. was incorporated in Delaware in April 2000 and is a leading independent provider of comprehensive energy efficiency solutions for facilities throughout North America. Ameresco's solutions include upgrades to a facility's energy infrastructure, and the construction and operation of renewable energy plants. With corporate headquarters located in Framingham, MA, Ameresco has 54 offices in 29 states and four Canadian provinces. For more information, visit www.ameresco.com.

    Source: Ameresco, Inc.

Released July 22, 2010