A North America- and Europe-based energy services company that helps governments, schools, and businesses cut energy use and go renewable. It upgrades buildings with efficient lighting, HVAC, and controls, and builds and runs solar, wind, biogas, and electric-vehicle-charging projects, often under contracts guaranteeing energy savings. Founded in 2000 by energy-industry veteran George Sakellaris, the idea was reportedly sketched on a napkin at a Joe's American Bar & Grill in Dedham, Massachusetts. Its name blends "America" and "ESCO," short for energy service company.
Ameresco CFO Mark Chiplock resigns effective September 25, 2026
Mark A. Chiplock resigned as Executive Vice President, Chief Financial Officer and Chief Accounting Officer, effective September 25, 2026.
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Chiplock is leaving to pursue other professional opportunities, specifically a CFO position at a private equity-owned company in a different industry.
His resignation was not due to any disagreement with the company on operations, policies, or practices.
Chiplock will continue as CFO through September 25, 2026, to support an orderly transition.
Ameresco has begun a search for a new Chief Financial Officer.
5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements · 7.01 Regulation FD Disclosure · 9.01 Financial Statements and Exhibits
Ameresco appoints Brian Cox to its Board of Directors, effective August 1, 2026.
Cox's term as class III director expires at the 2028 annual meeting of stockholders.
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Brian Cox, 53, was appointed as a class III director of Ameresco, Inc., effective August 1, 2026.
Cox is the founder and former CEO of STACK Infrastructure and has over 20 years of data center energy infrastructure experience.
He will serve on the Audit and Nominating and Governance Committees.
His compensation will follow the company's Non-Employee Director Compensation Policy, and he will enter into a standard indemnification agreement.
5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements · 9.01 Financial Statements and Exhibits
Ameresco stockholders elect two Class I directors and approve 3.2M share equity plan increase at 2026 annual meeting.
Stockholders approved an amendment to the 2020 Equity Incentive Plan increasing reserved Class A common stock by 3,200,000 shares.
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At the June 4, 2026 annual meeting, stockholders elected Claire Hughes Johnson and Frank V. Wisneski as Class I directors for three-year terms ending at the 2029 annual meeting.
The appointment of RSM US LLP as independent auditor for fiscal year 2026 was ratified.
The non-binding advisory vote on named executive officer compensation was approved.
Vote results: Johnson received 106,664,410 for; Wisneski received 102,026,571 for; equity plan amendment received 104,902,485 for.
5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements · 5.07 Submission of Matters to a Vote of Security Holders · 9.01 Financial Statements and Exhibits
Ameresco forms Neogenyx Fuels JV with HASI affiliate, which invests $400M for 30% stake
Ameresco, through subsidiaries including AMRC Biogas HoldCo, agreed to contribute its biogas business to a new joint venture, Neogenyx Fuels LLC, in exchange for a 70% equity interest.
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An affiliate of HASI will invest $400 million in the JV for a 30% interest, with $100 million paid to Ameresco at closing and about $58 million used to reduce an existing construction and development loan.
The JV Agreement provides for quarterly distributions of 48% to Class A members and 52% to Class B members until a 9.0% unlevered IRR base return is achieved, then 70/30.
Closing is subject to customary conditions and may be terminated if not completed by June 3, 2026.
Michael Bakas, Ameresco's President of Renewable Fuels, will become CEO of the Joint Venture at closing.
1.01 Entry into a Material Definitive Agreement · 2.02 Results of Operations and Financial Condition · 3.02 Unregistered Sales of Equity Securities · 7.01 Regulation FD Disclosure · 9.01 Financial Statements and Exhibits
Ameresco appoints new Co-Presidents and COO, amends credit agreement
Ameresco entered into Amendment No. 2 to its Senior Secured Loan Agreement on March 30, 2026, increasing its Term Loan by $45 million to $140 million.
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The increased Term Loan proceeds were used to repay the outstanding balance under the $225 million revolving credit facility.
Effective April 1, 2026, Nicole A. Bulgarino and Louis P. Maltezos were appointed Co-Presidents, and Peter Christakis was appointed Chief Operating Officer.
George Sakellaris will step down as President but continue as CEO and Chairman of the Board.
The appointments are part of a leadership succession plan to strengthen operations and accelerate growth.
1.01 Entry into a Material Definitive Agreement · 2.03 Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement · 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements · 7.01 Regulation FD Disclosure · 9.01 Financial Statements and Exhibits