Ameresco Government Contracts
Ameresco Inc ยท UEI DKL8RJPGE4R3
Ameresco government contracts totaled $927M from FY2024 to FY2026, across 0 contract awards. In FY2026, obligations were $309M, down 42.8% from FY2025. Its largest customer was the General Services Administration ($400M). Most of its contract dollars were in engineering services (NAICS 541330).
Key figures
In FY2026, contract obligations were $309,484,198 across 0 awards with activity that year, a change of -42.8% from $541,219,451 in FY2025. From FY2024 to FY2026, obligations totaled $926,551,918 across 0 awards.
- Obligated in FY2026
- $309M
- Awards in FY2026
- 0
- Change vs FY2025
- -42.8%
- Total, FY2024 to FY2026
- $927M
Note: FY2026 ended on Sep 30, 2026. The Department of Defense publishes contract data with a 90-day delay, so FY2026 totals may still rise as late reports arrive.
Ameresco federal contracts by year
Ameresco federal contract obligations per fiscal year (October to September). The table below lists the same numbers.
| Fiscal year | Obligated | Awards | Change |
|---|---|---|---|
| FY2026 | $309,484,198 | 0 | -42.8% |
| FY2025 | $541,219,451 | 0 | +613.6% |
| FY2024 | $75,848,268 | 0 | n/a |
About Ameresco's federal contracts
Ameresco's federal contract obligations rose 308% from FY2024 ($75.8M) to FY2026 ($309M), peaking in FY2025. FY2026 closed recently, and Defense Department contracts are reported up to 90 days late, so its total may still rise.
Ameresco works for at least 7 federal agencies. The largest customer is the General Services Administration with 43% of its contract dollars, followed by the Department of Veterans Affairs (29%).
Its main line of government work is engineering services (NAICS 541330), 100% of its federal contract dollars.
The states with the most Ameresco contract work are Alabama, Indiana and District of Columbia; Alabama alone accounts for 27%.
Which agencies award Ameresco contracts
Federal agencies ranked by contract dollars obligated to Ameresco Inc.
| # | Agency | Obligated | Share |
|---|---|---|---|
| 1 | General Services Administration | $400,369,389 | 43.2% |
| 2 | Department of Veterans Affairs | $265,490,279 | 28.7% |
| 3 | Department of Defense | $225,212,766 | 24.3% |
| 4 | Department of the Interior | $17,362,710 | 1.9% |
| 5 | Department of Agriculture | $9,948,874 | 1.1% |
| 6 | National Archives and Records Administration | $4,570,232 | 0.5% |
| 7 | Department of Justice | $3,597,668 | 0.4% |
Ameresco contracts by industry (NAICS)
The industry codes on Ameresco's contracts with the government, ranked by dollars.
| # | Industry | Obligated | Share |
|---|---|---|---|
| 1 | Engineering ServicesNAICS 541330 | $925,218,831 | 99.9% |
| 2 | Power and Communication Line and Related Structures ConstructionNAICS 237130 | $3,342,618 | 0.4% |
| 3 | Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)NAICS 541715 | $1,860,051 | 0.2% |
Where Ameresco contract work is performed
States ranked by contract dollars, using the place of performance on each award.
| # | State | Obligated | Share |
|---|---|---|---|
| 1 | Alabama | $247,691,038 | 26.7% |
| 2 | Indiana | $217,262,240 | 23.4% |
| 3 | District of Columbia | $128,456,910 | 13.9% |
| 4 | Colorado | $111,902,165 | 12.1% |
| 5 | Virginia | $59,408,294 | 6.4% |
| 6 | Texas | $28,091,762 | 3.0% |
| 7 | South Carolina | $26,140,460 | 2.8% |
| 8 | New Jersey | $22,124,866 | 2.4% |
| 9 | Maryland | $20,601,058 | 2.2% |
| 10 | Maine | $18,855,109 | 2.0% |
Companies similar to Ameresco
Other federal contractors whose largest industry is also Engineering Services (NAICS 541330), ranked by total contract dollars.
| # | Contractor | Obligated |
|---|---|---|
| 1 | Serco Inc | $3,916,221,255 |
| 2 | Bae Systems Technology Solutions & Services Inc. | $3,826,671,430 |
| 3 | Hii Mission Technologies Corp | $3,505,480,208 |
| 4 | International Business Machines Corporation | $2,879,784,273 |
| 5 | Northrop Grumman Systems Corporation | $2,374,088,547 |
Recent Ameresco contract awards
The latest Ameresco contract awards, newest first. Each award ID links to its record on USAspending.gov.
| Start date | Agency and description | Amount | Record |
|---|---|---|---|
| Apr 24, 2026 | Department of DefenseCONTRACT TRANSFERRED FROM PD2 OF W9133L14F0008 AND FUNDING INCREASED BY $982,707.00 FROM $8,336,870.79 TO $9,319,577.79. TOTAL CONTRACT $20 852 504.79. | $982,707 | W9133L26FA027 |
| Sep 26, 2025 | National Archives and Records AdministrationNARA ESPC THROUGH AMERESCO DOE CONTRACT DE-EE0008027 COPY OF DE-EE0008027/88310324F00050 | $4,570,232 | 88310325F00226 |
| Sep 23, 2025 | Department of DefenseIMPLEMENTATION OF A DETAILED FEASIBILITY STUDY AT NAVAL RESEARCH LABORATORY | $51,715,735 | W912DY25F0329 |
| Jun 11, 2025 | Department of DefenseGUARANTEED MINIMUM | $1,000 | W912DY25F0301 |
| Jan 16, 2025 | General Services AdministrationENERGY SAVINGS PERFROMANCE CONTRACT, NATIONAL DEEP ENERGY RETROFIT PROGAM ROUND 7, R11 PROJECT 2 FOR IMPLEMENTATION OF ENERGY CONSERVATION MEASURES AT THE VETERAN'S AFFAIRS BUILDING AND LAFAYETTE BUIL | $1,602,120 | 47PM0725F0030 |
| Jan 16, 2025 | General Services AdministrationENERGY SAVINGS PERFORMANCE CONTRACT, NATIONAL DEEP ENERGY RETROFIT PROGRAM ROUND 7, REGION 5 FOR IMPLEMENTATION OF ENERGY CONSERVATION MEASURES AT THE BEAN FEDERAL CENTER, INDIANAPOLIS AND 24 OTHER BU | $217,262,240 | 47PF0025F0227 |
| Dec 30, 2024 | General Services AdministrationENERGY SAVINGS PERFORMANCE CONTRACT, NATIONAL DEEP ENERGY RETROFIT PROGRAM ROUND 6, REGION 8 FOR IMPLEMENTATION OF ENERGY CONSERVATION MEASURES AT THE DENVER FEDERAL CENTER AND THE US COURTHOUSE IN DO | $111,902,165 | 47PJ0025F0066 |
| Dec 9, 2024 | Department of DefenseESTCP PROJECT EW24-7997 VEHICLE-TO-EVERYTHING (V2X) TECHNOLOGY TO REDUCE ON-SITE AND GRID PEAK ELECTRIC DEMAND AND REDUCE ENERGY COSTS AT DOD INSTALLATIONS | $14,217 | W912HQ25C0012 |
| Oct 21, 2024 | Department of DefenseESTCP PROJECT EW24-8122 DIGITAL ADDITIVE MANUFACTURING PROCESS FOR CUSTOMIZABLE AND COST-EFFECTIVE PANELIZED EXTERIOR WALL INSULATION RETROFIT AT DETROIT ARSENAL | $1,845,834 | W912HQ25C0002 |
| Nov 17, 2023 | General Services AdministrationNDER 1 - EXERCISE YEAR 9 & CONVERT NON INTERFACE CONTRACT GS-P-11-14-MK-0021 FROM PDN PJ TO EP INTERFACE | $9,780,411 | 47PM0624F0022 |
| Aug 25, 2023 | Department of DefenseESPC STANDALONE CONTRACT TO REPLACE DACA87-97-D-0068-0006. | $11,649,238 | W912DY23C0013 |
| Dec 15, 2022 | General Services AdministrationENERGY SAVINGS PERFORMANCE CONTRACT, NATIONAL DEEP ENERGY RETROFIT PROGRAM ROUND 5, REGION 7 FOR IMPLEMENTATION OF ENERGY CONSERVATION MEASURES MULTIPLE LOCATIONS IN LOUISIANA AND TEXAS. | $18,831,685 | 47PH1123F0001 |
| Sep 29, 2022 | Department of DefenseDESIGN-BUILD (D/B) CONSTRUCTION PROJECT OF A MICROGRID AT FORT CAMPBELL, KY | $19,490,074 | W912QR22C0042 |
| Oct 18, 2021 | Department of DefenseENERGY SAVINGS PERFORMANCE CONTRACT (ESPC) FOR JOINT BASE MCGUIRE-DIX LAKEHURST (JBMDL) | $27,772,636 | SP060422F8000 |
| Sep 29, 2021 | Department of DefenseENERGY SAVINGS PERFORMANCE CONTRACT | $17,030,431 | SP060421F8005 |
| Jun 3, 2021 | Department of DefenseAWARD OF AN ENERGY SAVINGS PERFORMANCE CONTRACT (CANNON AFB ESPC) | $0 | SP060421F8004 |
| Apr 26, 2021 | Department of DefenseFULL FACILITY REVITALIZATION B200, FORT TOTTEN, NY | $35,030,546 | W912QR21C0018 |
| Sep 28, 2020 | Department of DefenseRENEWABLE ENERGY SYSTEM INSTALLATION&FACILITY ENERGY IMPROVEMENTS - OAHU | $14,412,130 | N6247820C4002 |
| Aug 25, 2020 | Department of DefenseFT IRWIN RENEWABLE ENERGY SERVICES | $224,480 | W9124J20C0014 |
| Jul 31, 2020 | Department of DefenseX004 REPAIR ROOF AND INTERIOR LIBRARY, IPAC, HRO B298 | $18,953,184 | N6247020F5602 |
| Jul 31, 2020 | Department of DefenseFLO - B1016 REPAIR BLDG ENVELOPE&INTERIOR FINISHES | $26,160,038 | N6247020F5599 |
| Dec 12, 2019 | Department of DefenseENERGY SAVINGS PERFORMANCE CONTRACT FOR NORFOLK NAVAL SHIP YARD, PORTSMOUTH, VIRGINIA. | $75,315,725 | N3943020F9901 |
| Nov 29, 2019 | Department of Veterans AffairsVETERANS INTEGRATED SERVICE NETWORK (VISN) 7 ENERGY SAVINGS PERFORMANCE CONTRACT (ESPC) | $364,707,235 | 36E77620F0003 |
| Nov 7, 2019 | Department of DefenseENERGY SAVINGS PERFORMANCE CONTRACT FOR ENERGY CONSERVATION MEASURES AT PORTSMOUTH NAVAL SHIPYARD, KITTERY, MAINE | $31,229,342 | N3943020F9904 |
| Oct 31, 2019 | Department of Veterans AffairsVETERANS INTEGRATED SERVICE NETWORK (VISN) 5 ENERGY SAVINGS PERFORMANCE CONTRACT (ESPC) | $21,244,463 | 36E77620F0002 |
Subcontracting opportunities with Ameresco
Large prime contractors such as Ameresco buy goods and services from smaller firms for parts of their government contracts. If you work in the same industries or states, Ameresco is a possible teaming partner: read its recent contract awards above, then contact its small business or supplier diversity office with your capability statement.
Explore government contracts related to Ameresco
- Government engineering contracts
- Government power and communication line and related structures construction contracts
- Government research and development in the physical, engineering, and life sciences (except nanotechnology and biotechnology) contracts
- General Services Administration contracts
- Department of Veterans Affairs contracts
- Department of Defense contracts
- Department of the Interior contracts
- Department of Agriculture contracts
- Government contracts in Alabama
- Government contracts in Indiana
- Government contracts in District of Columbia
- Government contracts in Colorado
- Government contracts in Virginia
Frequently asked questions
- How much does Ameresco make from government contracts?
- Ameresco Inc received $927M in federal contract obligations from FY2024 to FY2026, across 0 contract awards. In FY2026 alone it received $309M. Figures are federal contract obligations reported on USAspending.gov.
- Which agency spends the most with Ameresco?
- The General Services Administration obligated $400M to Ameresco from FY2024 to FY2026, 43% of its federal contract dollars.
- What does Ameresco do for the government?
- By contract dollars, Ameresco's largest federal contract industries are engineering services (NAICS 541330), power and communication line and related structures construction (NAICS 237130) and research and development in the physical, engineering, and life sciences (except nanotechnology and biotechnology) (NAICS 541715).
- Where does Ameresco perform its government contracts?
- By place of performance, the most Ameresco contract dollars went to work in Alabama ($248M), Indiana ($217M) and District of Columbia ($128M).
- Are Ameresco's government contracts growing?
- Ameresco's federal contract obligations rose 308% from FY2024 ($75.8M) to FY2026 ($309M), peaking in FY2025. FY2026 closed recently, and Defense Department contracts are reported up to 90 days late, so its total may still rise.
- How can a small business subcontract with Ameresco?
- Look at the agencies and industries Ameresco works in on this page, then contact its small business or supplier diversity office with a capability statement. Large prime contractors often have to meet small business subcontracting goals, and you will need a free SAM.gov registration.