Ameresco, Inc. — Director's Dealing 2011

May 27, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Ameresco, Inc. (AMRC)
CIK: 0001488139
Period of Report: 2011-05-26

Reporting Person: WISNESKI FRANCIS V JR (Director)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-05-26	Stock Option (right to purchase)	$14.81	A	40000	Acquired	2021-05-25	Class A Common Stock (40000)	Direct

Footnotes

F1: Of the shares subject to the option, 20% vest on May 26, 2012 and the remainder vest on each of the subsequent four anniversaries of such date.