<SEC-DOCUMENT>0001488139-25-000009.txt : 20250131
<SEC-HEADER>0001488139-25-000009.hdr.sgml : 20250131
<ACCEPTANCE-DATETIME>20250131162514
ACCESSION NUMBER:		0001488139-25-000009
CONFORMED SUBMISSION TYPE:	SCHEDULE 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20250131

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Ameresco, Inc.
		CENTRAL INDEX KEY:			0001488139
		STANDARD INDUSTRIAL CLASSIFICATION:	CONSTRUCTION SPECIAL TRADE CONTRACTORS [1700]
		ORGANIZATION NAME:           	05 Real Estate & Construction
		IRS NUMBER:				043512838
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-85991
		FILM NUMBER:		25578678

	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:			Sakellaris George P
		CENTRAL INDEX KEY:			0001496665
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A

	MAIL ADDRESS:	
		STREET 1:		111 SPEEN STREET
		STREET 2:		SUITE 410
		CITY:			FRAMINGHAM
		STATE:			MA
		ZIP:			01701
</SEC-HEADER>
<DOCUMENT>
<TYPE>SCHEDULE 13G/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/schedule13g" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>SCHEDULE 13G/A</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001496665</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <coverPageHeader>
      <amendmentNo>14</amendmentNo>
      <securitiesClassTitle>Class A Common Stock</securitiesClassTitle>
      <eventDateRequiresFilingThisStatement>12/31/2024</eventDateRequiresFilingThisStatement>
      <issuerInfo>
        <issuerCik>0001488139</issuerCik>
        <issuerName>Ameresco, Inc.</issuerName>
        <issuerCusip>02361E108</issuerCusip>
        <issuerPrincipalExecutiveOfficeAddress>
          <com:street1>111 SPEEN STREET</com:street1>
          <com:city>FRAMINGHAM</com:city>
          <com:stateOrCountry>MA</com:stateOrCountry>
          <com:zipCode>01701</com:zipCode>
        </issuerPrincipalExecutiveOfficeAddress>
      </issuerInfo>
      <designateRulesPursuantThisScheduleFiled>
        <designateRulePursuantThisScheduleFiled>Rule 13d-1(d)</designateRulePursuantThisScheduleFiled>
      </designateRulesPursuantThisScheduleFiled>
    </coverPageHeader>
    <coverPageHeaderReportingPersonDetails>

      <reportingPersonName>Sakellaris George P</reportingPersonName>
      <citizenshipOrOrganization>X1</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>14085247.00</soleVotingPower>
        <sharedVotingPower>6638391.00</sharedVotingPower>
        <soleDispositivePower>14085247.00</soleDispositivePower>
        <sharedDispositivePower>6638391.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>20723638.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <classPercent>39.5</classPercent>
      <typeOfReportingPerson>IN</typeOfReportingPerson>
    </coverPageHeaderReportingPersonDetails>
    <items>
      <item1>
        <issuerName>Ameresco, Inc.</issuerName>
        <issuerPrincipalExecutiveOfficeAddress>111 SPEEN STREET, FRAMINGHAM, MASSACHUSETTS, 01701</issuerPrincipalExecutiveOfficeAddress>
      </item1>
      <item2>
        <filingPersonName>George P. Sakellaris</filingPersonName>
        <principalBusinessOfficeOrResidenceAddress>c/o Ameresco, Inc.
11 Speen St., Suite 410
Framingham, MA  01701</principalBusinessOfficeOrResidenceAddress>
        <citizenship>United States</citizenship>
      </item2>
      <item3>
        <notApplicableFlag>Y</notApplicableFlag>
      </item3>
      <item4>
        <amountBeneficiallyOwned>20,723,638
Includes:  (i) 570,000 shares issuable upon exercise of options that are exercisable within 60 days of December 31, 2024; and (ii) 12,661,609 shares issuable upon conversion of shares of Class B Common Stock held directly by the Reporting Person.
Also includes (i) 200,000 shares held by the Reporting Person's spouse, (ii) 1,100,000 shares held by the George P. Sakellaris 2012 Delaware Dynasty Trust (the 2012 Trust) and (iii) 5,338,391 shares issuable upon conversion of shares of Class B Common Stock held by the CGS 2010 Irrevocable Trust (the 2010 Trust and together with the 2012 Trust, the Trusts).  The Reporting Person may be deemed the beneficial holder of the shares held by the Trusts and his spouse and to share voting and dispositive power.  The Reporting Person disclaims beneficial ownership of the shares held by the Trusts and his spouse  and this schedule shall not be deemed an admission that the Reporting Person is the beneficial owner of the shares held by the Trusts or his spouse for purposes of Section 13 or for any other purpose.</amountBeneficiallyOwned>
        <classPercent>39.5%
Includes:  (i) 570,000 shares issuable upon exercise of options that are exercisable within 60 days of December 31, 2024; and (ii) 12,661,609 shares issuable upon conversion of shares of Class B Common Stock held directly by the Reporting Person.
Also includes (i) 200,000 shares held by the Reporting Person's spouse, (ii) 1,100,000 shares held by the 2012 Trust and (iii) 5,338,391 shares issuable upon conversion of shares of Class B Common Stock held by the 2010 Trust.  The Reporting Person may be deemed the beneficial holder of the shares held by the Trusts and his spouse and to share voting and dispositive power.  The Reporting Person disclaims beneficial ownership of the shares held by the Trusts and his spouse  and this schedule shall not be deemed an admission that the Reporting Person is the beneficial owner of the shares held by the Trusts or his spouse for purposes of Section 13 or for any other purpose.</classPercent>
        <numberOfSharesPersonHas>
          <solePowerOrDirectToVote>14,085,247</solePowerOrDirectToVote>
          <sharedPowerOrDirectToVote>6,638,391</sharedPowerOrDirectToVote>
          <solePowerOrDirectToDispose>14,085,247</solePowerOrDirectToDispose>
          <sharedPowerOrDirectToDispose>6,638,391</sharedPowerOrDirectToDispose>
        </numberOfSharesPersonHas>
      </item4>
      <item5>
        <notApplicableFlag>Y</notApplicableFlag>
      </item5>
      <item6>
        <notApplicableFlag>Y</notApplicableFlag>
      </item6>
      <item7>
        <notApplicableFlag>Y</notApplicableFlag>
      </item7>
      <item8>
        <notApplicableFlag>Y</notApplicableFlag>
      </item8>
      <item9>
        <notApplicableFlag>Y</notApplicableFlag>
      </item9>
      <item10>
        <notApplicableFlag>Y</notApplicableFlag>
      </item10>
    </items>
    <signatureInformation>
      <reportingPersonName>Sakellaris George P</reportingPersonName>
      <signatureDetails>
        <signature>George P. Sakellaris</signature>
        <title>6,638,391</title>
        <date>01/31/2025</date>
      </signatureDetails>
    </signatureInformation>
  </formData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
