Ameresco reported second-quarter revenue of $515.46 million, beating consensus by $52.51 million, as the energy infrastructure company's project backlog climbed 32% year-over-year to a record $6.73 billion. The stock jumped 29.84% in after-hours trading following the announcement on August 3.
The $6.73 billion backlog represents work Ameresco has won but not yet completed; a 32% annual growth rate means more than a year of revenue visibility in signed contracts alone.
Ameresco raised its full-year earnings-per-share guidance to $1.15 to $1.35, up from a prior range of $1.06 to $1.28. The midpoint of the new range, $1.25, represents a 9.3% increase from the midpoint of prior guidance. The company attributed the beat partly to data center demand, as power consumption for artificial intelligence infrastructure has driven urgent capacity expansion across the industry.
The company operates in an energy services market where large backlogs typically indicate contract visibility and pricing power. Ameresco competes with Xylem, Quanta Services and smaller regional firms on project wins and execution. Ameresco's current backlog-to-quarterly-revenue ratio stands at 12.9 times.
Data centers account for a growing share of Ameresco's addressable market as hyperscalers deploy new facilities. The company has benefited from federal infrastructure spending, state-level renewable mandates and corporate sustainability commitments. Power demand growth from AI workloads has compressed project timelines and raised contract values, pushing clients to lock in capacity expansion work faster than historical norms.
The 32% backlog growth outpaced the revenue beat by a factor of 2.7, meaning Ameresco is converting qualified demand into signed orders faster than it is completing them. Ameresco's stock has now captured the earnings beat and backlog expansion in a single session, leaving limited room for subsequent positive surprises unless the company delivers execution better than its own forecast or backlog growth accelerates further.
The SEC 8-K filing detailing the results is expected within two business days of the announcement. Investors should monitor whether Ameresco's next quarterly update sustains the backlog growth rate above 30% or shows a normalization toward mid-to-high single digits.
