Amentum Services, Inc.
Germantown, MD Doing business as Lear Siegler Service Part of Amentum Government Services Holdings Sub LLC
- UEI
- HE89E2BE5G54
- CAGE
- 08MB5
- Primary NAICS
- 493190 Other Warehousing and Storage
- SAM.gov registration
- Active through
Company facts
- FY2025 rankings
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Other NAICS codes in SAM.gov
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- 111421 Nursery and Tree Production
- 113210 Forest Nurseries and Gathering of Forest Products
- 213111 Drilling Oil and Gas Wells
- 213112 Support Activities for Oil and Gas Operations
- 213113 Support Activities for Coal Mining
- 213114 Support Activities for Metal Mining
- 213115 Support Activities for Nonmetallic Minerals (except Fuels) Mining
- 221310 Water Supply and Irrigation Systems
Show all 82
- 221320 Sewage Treatment Facilities
- 236118 Residential Remodelers
- 236210 Industrial Building Construction
- 236220 Commercial and Institutional Building Construction
- 237110 Water and Sewer Line and Related Structures Construction
- 237120 Oil and Gas Pipeline and Related Structures Construction
- 237130 Power and Communication Line and Related Structures Construction
- 237210 Land Subdivision
- 237310 Highway, Street, and Bridge Construction
- 237990 Other Heavy and Civil Engineering Construction
- 238220 Plumbing, Heating, and Air-Conditioning Contractors
- 238320 Painting and Wall Covering Contractors
- 238910 Site Preparation Contractors
- 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
- 336411 Aircraft Manufacturing
- 481211 Nonscheduled Chartered Passenger Air Transportation
- 481212 Nonscheduled Chartered Freight Air Transportation
- 483111 Deep Sea Freight Transportation
- 488190 Other Support Activities for Air Transportation
- 488210 Support Activities for Rail Transportation
- 488510 Freight Transportation Arrangement
- 488991 Packing and Crating
- 488999 All Other Support Activities for Transportation
- 493110 General Warehousing and Storage
- 513210 Software Publishers
- 531311 Residential Property Managers
- 531312 Nonresidential Property Managers
- 531390 Other Activities Related to Real Estate
- 541310 Architectural Services
- 541320 Landscape Architectural Services
- 541330 Engineering Services
- 541340 Drafting Services
- 541350 Building Inspection Services
- 541360 Geophysical Surveying and Mapping Services
- 541370 Surveying and Mapping (except Geophysical) Services
- 541380 Testing Laboratories and Services
- 541410 Interior Design Services
- 541430 Graphic Design Services
- 541490 Other Specialized Design Services
- 541511 Custom Computer Programming Services
- 541512 Computer Systems Design Services
- 541513 Computer Facilities Management Services
- 541519 Other Computer Related Services
- 541611 Administrative Management and General Management Consulting Services
- 541614 Process, Physical Distribution, and Logistics Consulting Services
- 541618 Other Management Consulting Services
- 541620 Environmental Consulting Services
- 541690 Other Scientific and Technical Consulting Services
- 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
- 541720 Research and Development in the Social Sciences and Humanities
- 541990 All Other Professional, Scientific, and Technical Services
- 561110 Office Administrative Services
- 561210 Facilities Support Services
- 561421 Telephone Answering Services
- 561520 Tour Operators
- 561599 All Other Travel Arrangement and Reservation Services
- 561611 Investigation and Personal Background Check Services
- 561612 Security Guards and Patrol Services
- 561730 Landscaping Services
- 561990 All Other Support Services
- 562211 Hazardous Waste Treatment and Disposal
- 562212 Solid Waste Landfill
- 562213 Solid Waste Combustors and Incinerators
- 562219 Other Nonhazardous Waste Treatment and Disposal
- 562910 Remediation Services
- 562998 All Other Miscellaneous Waste Management Services
- 611512 Flight Training
- 712120 Historical Sites
- 712190 Nature Parks and Other Similar Institutions
- 722310 Food Service Contractors
- 811198 All Other Automotive Repair and Maintenance
- 811210 Electronic and Precision Equipment Repair and Maintenance
- 811490 Other Personal and Household Goods Repair and Maintenance
- 813312 Environment, Conservation and Wildlife Organizations
- Corporate family
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-
Parent
Chantilly, VA
Q3VZNHTHXLT9
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Parent
Chantilly, VA
Q3VZNHTHXLT9
- SAM.gov registration date
- Physical address
- 20501 Seneca Meadows Pkwy #300, Germantown, MD 20876, USA
- Website
- amentum.com
- Founded
- 2020
- Employees
- 50K-100K
- Estimated annual revenue
- $10B+
- Industry
-
- Industrials
- Capital Goods
- Construction & Engineering
- Civil Engineering
- SIC code
- 87 Engineering & Management 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 | $0 |
| FY2026 | $68,208,559 |
| FY2025 | $86,298,650 |
| FY2024 | $90,463,149 |
| FY2023 | $76,020,917 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of the Army | $68,208,559 |
Contract awards
| Award | Agency | Obligated | Awarded |
|---|---|---|---|
| Ierw | MICC Fort Rucker | $647,931,131 |
Contract subawards
| Prime contractor | Prime award | Amount | Awarded |
|---|---|---|---|
| Cydecor Inc. | N0016421F3012 | $948,070 | |
| Cydecor Inc. | N0016421F3012 | $884,983 | |
| Cydecor Inc. | N0016421F3012 | $3,893,816 | |
| Cydecor Inc. | N0016421F3012 | $4,388,232 | |
| Cydecor Inc. | N0016421F3012 | $4,062,889 |
Latest 5 listed here. See the rest on GovTribe.
Similar vendors
| Vendor | Location | Primary NAICS |
|---|---|---|
| Clearplan LLC | Westborough, MA | 541330 Engineering Services |
| General Atomics Aero Services | San Diego, CA | 541330 Engineering Services |
| Engineering And Technical Services | Cape Canaveral, FL | 811210 Electronic and Precision Equipment Repair and Maintenance |
| Bisco Industries Inc. | Madison, AL | 423710 Hardware Merchant Wholesalers |
| Leidos Inc. | King of Prussia, PA | 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) |
About the company
Amentum Services, Inc., doing business as Lear Siegler Service, is a global technical and engineering services partner with specialties in defense, security, intelligence, energy, and environmental programs. As a corporate, for-profit entity, it has been registered in the System for Award Management (SAM) since 2016 to receive federal contract awards.
According to the federal award data, Amentum Services, Inc. has primarily served as a subcontractor, providing services such as management support, incremental funding support, and general services. Notable prime contractors it has partnered with include Cydecor Inc., ECS Federal, LLC, and Sev1Tech LLC. The subcontract award descriptions indicate that Amentum Services, Inc. has contributed to various projects spanning management, technical, and operational support services for federal agencies. While the specific details of the projects are not provided, the range of prime contractors and the broad service categories suggest that Amentum Services, Inc. possesses diverse capabilities to serve as a subcontractor across multiple industries and sectors within the federal contracting landscape.
Quick answers
Is Amentum Services, Inc. registered in SAM.gov?
Yes. Amentum Services, Inc.'s SAM.gov registration is active through November 24, 2026.
How much has Amentum Services, Inc. received in federal contracts?
Federal contracts obligated $86,298,650 to Amentum Services, Inc. in fiscal year 2025 and $320,991,276 in fiscal years 2023 through 2027.
How does Amentum Services, Inc. rank among federal contractors?
Amentum Services, Inc. ranked #1 in PSC U009, #3 in NAICS 611512 and #6 in NAICS 6115 in FY2025.
What is Amentum Services, Inc.'s most recent federal award?
Amentum Services, Inc.'s most recent federal contract award is Ierw (W9124G17C0005), from MICC Fort Rucker, on September 1, 2017.
On GovTribe
See Amentum Services, Inc.'s full federal record
- Federal contract awards
- Subcontracting relationships
- Funding analysis by agency, NAICS and set-aside
- Similar vendors