Constellation Energy Solutions, LLC
Baltimore, MD Part of Constellation Newenergy Inc.
- UEI
- XVPREJLB2MY6
- CAGE
- 8EPG0
- Primary NAICS
- 541330 Engineering Services
- SAM.gov registration
- Active through
Company facts
- FY2025 rankings
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Its parent company, Constellation Newenergy Inc., ranks:
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Corporate family
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Parent
Constellation Newenergy Inc. · Baltimore, MD
MSHWEAFLKZ87
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- Gambrills, MD GZ17GEK1E5W7
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Parent
Constellation Newenergy Inc. · Baltimore, MD
MSHWEAFLKZ87
- SAM.gov registration date
- Physical address
- 1310 Point St Fl 8Th, Baltimore, MD 21231, USA
- Website
- constellation.com
- Founded
- 1816
- Employees
- 10K-50K
- Estimated annual revenue
- $10B+
- Industry
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- Utilities
- SIC code
- 49 Electric, Gas, & Sanitary Services
- Profiles
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $1,832,774 |
| FY2026 | $11,332,580 |
| FY2025 | $15,154,302 |
| FY2024 | $1,640,753 |
| FY2023 | $1,024,063 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of the Navy | $14,581,078 | |
| 2 | National Aeronautics and Space Administration | $1,832,774 | |
| 3 | Department of the Army | $1,120,724 |
Contract vehicles
Contract awards
Latest 5 listed here. See the rest on GovTribe.
Contract subawards
| Prime contractor | Prime award | Amount | Awarded |
|---|---|---|---|
| Weems Design Studio, Inc. | 75N91024F00011 | $60,028 | |
| Roche Diagnostics Corporation | 75N91020F00003 | $32,472 | |
| Philadelphia Facilities Management Corporation | INP14PC00048 | $12,778,066 |
Similar vendors
| Vendor | Location | Primary NAICS |
|---|---|---|
| CEG Solutions LLC | Arlington, VA | 541330 Engineering Services |
| Constellation Newenergy - Distributed Energy | Baltimore, MD | 541330 Engineering Services |
| Centrica Business Solutions Services, Inc. | Ballston Spa, NY | 238210 Electrical Contractors and Other Wiring Installation Contractors |
| Consolidated Edison | Valhalla, NY | 236220 Commercial and Institutional Building Construction |
| Ameresco Federal Solutions, Inc. | Framingham, MA | 541330 Engineering Services |
About the company
Constellation Energy Solutions, LLC is a for-profit limited liability company headquartered in Baltimore, Maryland, that specializes in energy efficiency and conservation services for federal facilities. The company is registered as a corporate entity and has been operating as a federal contractor since its SAM.gov registration in August 2019. Constellation Energy Solutions provides comprehensive energy savings performance contract (ESPC) services to federal agencies, enabling them to implement energy efficiency improvements without upfront capital costs while guaranteeing that energy improvements will generate sufficient cost savings to fund project costs over extended periods.
The company's federal contract portfolio demonstrates extensive experience across multiple ESPC vehicles and funding agencies. Constellation Energy Solutions has received significant delivery orders valued at $172.4 million for installing energy-efficient equipment and implementing energy conservation measures across federal facilities in Washington, DC under the Department of Energy's National Capital Region, with task orders extending to April 30, 2047. The company has also secured a $5.8 million task order from the General Services Administration Region 7 for energy conservation measures at land ports of entry in Texas, a $5.5 million delivery order from the Department of Energy's Federal Energy Management Program for energy conservation projects at federal buildings in Kentucky and Florida, and a $2.7 million task order from the U.S. Army Engineering Support Center Huntsville under ESPC III for the NATICK II project. Additionally, Constellation Energy Solutions completed an $86,791 Investment Grade Audit for NASA's Goddard Space Flight Center through a Multiple Award Schedule contract with the Shared Services Center. All prime contract awards were issued without set-aside restrictions, indicating open competition. The company has engaged multiple subcontractors including Rife International LLC, ECM Holding Group Inc., Pearl Street Systems LLC (doing business as Lumen Services), and I-Star Energy Solutions LLC for executing energy conservation work across GSA buildings. Constellation Energy Solutions has also served as a subcontractor to Leidos Biomedical Research Inc., performing work related to boiler repairs and lower pass tube replacement services.
Constellation Energy Solutions holds two significant federal contract IDVs that position it as a major provider of energy efficiency services government-wide. The company was awarded a $3 billion multiple-award Indefinite Delivery Contract on June 9, 2025, by the U.S. Department of the Army Corps of Engineers Engineering Support Center Huntsville under the Energy Savings Performance Contracts IV (ESPC IV) program, with a performance period extending to December 9, 2035. This IDV allows federal agencies to procure comprehensive ESPC services including distributed generation, renewable energy technologies, energy and water conservation, and related operations and maintenance without upfront capital costs. Constellation Energy Solutions also holds a $5 billion multiple-award IDIQ contract awarded by the Department of Energy's Federal Energy Management Program under the Energy Savings Performance Contract Generation 4 program, effective through August 2, 2028, with a five-year base period and five-year option period. Under this FEMP Generation 4 ESPC vehicle, the company is authorized to provide similar energy efficiency and conservation services to federal agencies across the country. Both IDVs require Constellation Energy Solutions to guarantee that energy improvements will generate sufficient cost savings to pay for projects over task order periods up to 25 years, with all future savings accruing to ordering agencies upon contract completion. These IDV awards provide Constellation Energy Solutions with significant vehicle capacity to support federal agencies' energy efficiency and sustainability objectives across multiple sectors.
Quick answers
Is Constellation Energy Solutions, LLC registered in SAM.gov?
Yes. Constellation Energy Solutions, LLC's SAM.gov registration is active through January 5, 2027.
Which contract vehicles does Constellation Energy Solutions, LLC hold?
Constellation Energy Solutions, LLC holds a place on 2 federal contract vehicles, including ESPC IV and MAS.
How much has Constellation Energy Solutions, LLC received in federal contracts?
Federal contracts obligated $15,154,302 to Constellation Energy Solutions, LLC in fiscal year 2025 and $30,984,473 in fiscal years 2023 through 2027.
How does Constellation Energy Solutions, LLC rank among federal contractors?
Constellation Energy Solutions, LLC's parent company, Constellation Newenergy Inc., ranked #6 in PSC B, #9 at the General Services Administration and #15 in PSC Y1JA in FY2025.
What is Constellation Energy Solutions, LLC's most recent federal award?
Constellation Energy Solutions, LLC's most recent federal contract award is Install energy conservation measures at NASA kennedy space center's wallops flight facility in wallops island, VA in… (80GSFC27F0001), from Goddard Space Center, on October 21, 2026.
On GovTribe
See Constellation Energy Solutions, LLC's full federal record
- Federal contract awards
- IDV awards
- Contract vehicles
- Subcontracting relationships
- Funding analysis by agency, NAICS and set-aside
- Similar vendors