# Ameresco

> Ameresco is a publicly traded energy infrastructure company that designs, finances, builds, owns and operates systems ranging from efficient HVAC and street lighting to solar, battery storage, microgrids and renewable natural gas. Its signature move is financial as much as technical: structure upgrades so future energy savings or long-term power purchases can cover much of the cost, giving governments, schools, hospitals, utilities, data centers and industrial customers a route around constrained capital budgets.

- **Founded:** 2000
- **Headquarters:** Framingham, United States
- **Founders:** George Sakellaris (Founder and CEO)
- **Team size:** More than 1,600 employees as of December 31, 2025
- **Products:** Energy efficiency and building modernization, Power infrastructure and distributed energy, Energy savings performance contracts, Power purchase and energy service agreements, Operations and maintenance
- **Notable:** Delivered more than $18.1 billion in energy solutions and sourced or raised about $7.0 billion in project financing from inception through 2025, according to its 2025 Form 10-K., Contracted more than 5 GW of energy resources since its founding, according to 2026 company releases., Reported more than 140 million cumulative metric tons of avoided CO2e through owned assets and customer projects by the end of 2025.

## Products & services

- **Energy efficiency and building modernization** — Audits, designs and installs HVAC, lighting, building-envelope, water-efficiency, automation and control upgrades intended to reduce energy and operating costs.
- **Power infrastructure and distributed energy** — Develops and integrates solar, battery storage, microgrids, cogeneration, geothermal, hydropower, wind and other on-site or utility-scale resources.
- **Energy savings performance contracts** — Structures infrastructure improvements so measured or agreed energy and operating savings can fund project costs over a contract term.
- **Power purchase and energy service agreements** — Finances and may own energy assets while customers purchase power or energy services under long-term contracts.
- **Operations and maintenance** — Provides multi-year operation, maintenance, repair, monitoring and performance verification for customer and Ameresco-owned systems.
- **Renewable fuels** — Develops and operates landfill-gas, biogas and renewable natural gas facilities and sells electricity or processed RNG.
- **AssetPlanner** — Enterprise asset-management software and advisory services for capital planning, maintenance management and energy optimization.
- **Energy supply management** — Provides procurement, rate analysis, hedging strategy, invoice data analysis and renewable-energy sourcing.

## Achievements

- Delivered more than $18.1 billion in energy solutions and sourced or raised about $7.0 billion in project financing from inception through 2025, according to its 2025 Form 10-K.
- Contracted more than 5 GW of energy resources since its founding, according to 2026 company releases.
- Reported more than 140 million cumulative metric tons of avoided CO2e through owned assets and customer projects by the end of 2025.
- Guaranteed more than $2.8 billion in savings through federal ESPC and utility energy service projects nationwide.
- Reached a record $6.73 billion total project backlog at June 30, 2026.
- Received Frost & Sullivan's 2026 North America Technology Innovation Leadership recognition in microgrids.
- Kūpono Solar was named a 2026 Environment+Energy Leader Awards winner.
- Named to Fortune's 2025 Change the World list for the Kūpono energy infrastructure project in Hawaii.

## Latest updates

- **2026-08** — Reported Q2 revenue of $515.5 million and a record $6.73 billion project backlog, including $1.2 billion of new data-center power-infrastructure awards during the quarter.
- **2026-07** — Ameresco SUNEL Energy SA announced EPC and long-term O&M work for a 58 MWp solar facility in Arad County, Romania.
- **2026-07** — Louis Maltezos won a Gold Stevie Award in the Executive of the Year - Energy Technology category.
- **2026-06** — Received Frost & Sullivan's North America Technology Innovation Leadership recognition for resilient microgrid infrastructure.
- **2026-05** — Closed the Neogenyx Fuels joint venture with HASI to develop renewable-natural-gas and advanced-biofuel assets.
- **2026-04** — Released its 2025 Impact Report, reporting approximately 18 million metric tons of CO2e avoided during 2025.

## Links

- Website: https://www.ameresco.com
- LinkedIn: https://www.linkedin.com/company/ameresco
- Twitter/X: https://twitter.com/Ameresco
- YouTube: https://www.youtube.com/@Ameresco
- Facebook: https://facebook.com/Ameresco

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Profile page: https://yespress.io/ameresco
Published by YesPress — https://yespress.io
Last updated: 2026-08-13