Ameresco, Inc.

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G)

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

General form for quarterly reports under Section 13 or 15(d)

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Results of Operations and Financial Condition

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Entry into a Material Definitive Agreement

Financial Statements and Exhibits

General form for quarterly reports under Section 13 or 15(d)

Entry into a Material Definitive Agreement

Annual Report Scanned (Paper)

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Entry into a Material Definitive Agreement

Annual report pursuant to Section 13 or 15(d)

Results of Operations and Financial Condition

General form for quarterly reports under Section 13 or 15(d)

Results of Operations and Financial Condition

General form for quarterly reports under Section 13 or 15(d)

Results of Operations and Financial Condition

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year

General form for quarterly reports under Section 13 or 15(d)

Results of Operations and Financial Condition

Annual Report Scanned (Paper)

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Preliminary Proxy Statement

Annual report pursuant to Section 13 or 15(d)

Results of Operations and Financial Condition

Entry into a Material Definitive Agreement

General form for quarterly reports under Section 13 or 15(d)

Results of Operations and Financial Condition

8.01,9.01

General form for quarterly reports under Section 13 or 15(d)

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

2.02,5.02,9.01

Additional Information for Proxy Statement/ Votes

General form for quarterly reports under Section 13 or 15(d)

Annual Report Scanned (Paper)

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Annual report pursuant to Section 13 or 15(d) (amendment)

Annual report pursuant to Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Annual Report Scanned (Paper)

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Annual report pursuant to Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Definitive Proxy Statement

Annual report pursuant to Section 13 or 15(d)

Definitive Proxy Statement

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Automatic Shelf Registration

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Definitive Proxy Statement

Definitive Proxy Statement

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Definitive Proxy Statement

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Specialized Disclosure Report

Definitive Proxy Statement

Specialized Disclosure Report

Definitive Proxy Statement

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Specialized Disclosure Report

Annual Report Scanned (Paper)

Definitive Proxy Statement

Specialized Disclosure Report

Annual Report Scanned (Paper)

Definitive Proxy Statement

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Letter from the SEC

Correspondence with the SEC

Correspondence with the SEC

Letter from the SEC

Definitive Proxy Statement

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Free Writing Prospectus

Free Writing Prospectus

Prospectus Supplement with Pricing Information

Notice of Effectiveness

Amended Initial Registration Statement

Registration of Securities on Exchange

Amended Initial Registration Statement

Amended Initial Registration Statement

Amended Initial Registration Statement

Amended Initial Registration Statement

Bradshaw Julie A

Angelico Debra L

Chiplock Mark

Maltezos Louis P

Maltezos Louis P

Christakis Peter

Bulgarino Nicole E

Sakellaris George P

Chiplock Mark

Sakellaris George P

Sakellaris George P

Sutton Joseph W.

Sakellaris George P

Miller Jennifer L

Cox Brian C

Corrsin David J

Cox Brian C

Sakellaris George P

Cox Brian C