Amentum Government Services Holdings Sub LLC

Chantilly, VA Part of Amentum Holdings LLC

Company facts

Self-certified in SAM.gov: For Profit Organization

Limited Liability Company
Entity structure: Corporate Entity (Not Tax Exempt)
Corporate family: Amentum Holdings LLC Parent Chantilly, VA LMHQY3226778

Amentum Government Services Holdings Sub LLC

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Amentum Government Services, Inc. Chantilly, VA W6T8K184C5V8

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Amentum Services, Inc. Huntsville, AL KAS5HG38F9B1

Amentum Services, Inc. Lakehurst, NJ QQLVBZRQV5K5

Amentum Services, Inc. Midwest City, OK SSXRWFY918M1

EG&G Amentum Services, Inc. · Germantown, MD KGNSK4VSH796

Lear Siegler Service Amentum Services, Inc. · Germantown, MD HE89E2BE5G54

URS Federal Technical Services Amentum Services, Inc. · Las Vegas, NV WEK2AL94M6H7
SAM.gov registration date: Apr 17, 2025
Physical address: 4800 Westfields Blvd #400, Chantilly, VA 20151, 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: LinkedIn

X

Crunchbase

Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated Jun 23, 2026.

Prime contractor	Prime award	Amount	Awarded
Beyond New Horizons, LLC TEST OPERATIONS AND SUSTAINMENT (TOS) II Support Contract, NFAC Test SLATE Data System Maintenance and Technical Support, refer to SOW. This is a multi-year…	FA910124CB002	$35,000	Apr 25, 2025

Yes. Amentum Government Services Holdings Sub LLC's SAM.gov registration is active through June 18, 2027.

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