Ameresco, Inc.

Outlook

“We are seeing a growing number of diversified opportunities on the horizon, as rapidly increasing demand for electricity, rising utility rates and growing grid instability continues to drive interest and demand for our broad portfolio of Energy Infrastructure solutions. With over 25 years of experience in providing these solutions, and our reputation for innovation and execution, we are confident in our ability to capture a significant share of these opportunities, which should help drive both near-term and long-term profitable growth. Our year-to-date results together with our visibility into the remainder of the year, support our 2025 revenue and adjusted EBITDA guidance of $1.9 billion and $235 million, respectively, at the midpoints of our ranges. A prolonged government shutdown could delay some project award conversions and shift some revenue timing, but we do not anticipate this would have a material impact on our fourth quarter results.

We believe our business momentum, together with the visibility from our project backlog and recurring revenue streams underpins our ability to achieve our long-term target growth rates of 10% revenue and 20% adjusted EBITDA in the years ahead,” Mr. Sakellaris concluded.

Our 2025 guidance does not include the potential impact of a change in accounting principle related to sale-leaseback arrangements that continue to be assessed.

The Company’s Adjusted EBITDA and Non-GAAP EPS guidance excludes the impact of redeemable non-controlling interest activity, one-time charges, asset impairment charges, changes in contingent consideration, restructuring activities, as well as any related tax impact.

Conference Call/Webcast Information

The Company will host a conference call today at 4:30 p.m. ET to discuss third quarter 2025 financial results, business and financial outlook, and other business highlights. To participate on the day of the call, dial 1-888-596-4144, or internationally 1-646-968-2525, and enter the conference ID: 1676587, approximately 10 minutes before the call. A live, listen-only webcast of the conference call will also be available over the Internet. Individuals wishing to listen can access the call through the “Investors” section of the Company’s website at www.ameresco.com. If you are unable to listen to the live call, an archived webcast will be available on the Company’s website for one year.