<SEC-DOCUMENT>0001019056-21-000104-index.html : 20210212
<SEC-HEADER>0001019056-21-000104.hdr.sgml : 20210212
<ACCEPTANCE-DATETIME>20210212161347
ACCESSION NUMBER:		0001019056-21-000104
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20210212
DATE AS OF CHANGE:		20210212
GROUP MEMBERS:		GAGNON ADVISORS, LLC
GROUP MEMBERS:		GAGNON SECURITIES LLC
GROUP MEMBERS:		NEIL GAGNON

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Ameresco, Inc.
		CENTRAL INDEX KEY:			0001488139
		STANDARD INDUSTRIAL CLASSIFICATION:	CONSTRUCTION SPECIAL TRADE CONTRACTORS [1700]
		IRS NUMBER:				043512838
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-85991
		FILM NUMBER:		21627484

	BUSINESS ADDRESS:	
		STREET 1:		111 SPEEN STREET
		CITY:			FRAMINGHAM
		STATE:			MA
		ZIP:			01701
		BUSINESS PHONE:		508-661-2200

	MAIL ADDRESS:	
		STREET 1:		111 SPEEN STREET
		CITY:			FRAMINGHAM
		STATE:			MA
		ZIP:			01701

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Gagnon Neil
		CENTRAL INDEX KEY:			0001070170

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	MAIL ADDRESS:	
		STREET 1:		1370 AVENUE OF THE AMERICAS
		STREET 2:		24TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	GAGNON NEIL
		DATE OF NAME CHANGE:	19980910
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>ameresco_13ga10.htm
<DESCRIPTION>SC 13G/A
<TEXT>
Document 1 - file: ameresco_13ga10.htm

</DOCUMENT>
</SEC-DOCUMENT>