Amentum Holdings, Inc. (NYSE: AMTM) is a global advanced engineering and technology solutions company serving U.S. federal customers across defense, intelligence, energy, space, and civilian missions, with allied work in the United Kingdom and Australia. The company was created from the spin-off of AECOM's Management Services business in 2020, and on September 27, 2024 completed a Reverse Morris Trust transaction with Jacobs Solutions to merge Jacobs' Critical Mission Solutions (CMS) and Cyber & Intelligence (C&I) businesses into Amentum. Post-merger Amentum reports approximately $14.4 billion in fiscal year 2025 revenue, a $47.1 billion backlog, ~53,000 employees in 80 countries, and is headquartered in Chantilly, Virginia. The business is organized around six capability areas — Mission Modernization & Sustainment, Space Systems, Digital Transformation, Sustainability & Environment, Advanced Energy Solutions, and Data Analytics & Cyber. Most delivery occurs under contract through classified, CAC-gated, or program portals; no public developer portal, OpenAPI, or REST API has been identified.
Amentum is profiled on the APIs.io network. Tagged areas include Federal Services, Defense IT, National Security, Intelligence, and Space Systems.
Amentum’s developer surface includes engineering blog, YouTube channel, and 13 more developer resources.
Regulatory Posture applies to this provider. Its tags matched the
Energy & Utilities regime, so
Regulatory Posture carries 15 points of the composite.
If this regime is wrong for your business, say so on your
provider repo — the
applicability map is public and we will correct it.
Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for
this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero:
never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and
several others — scorable at all.
The six quality facets above are damped to 85 points between them,
because the conditional facet above carries the other
15. That is why each facet's contribution is shown against a damped
maximum: raising a quality facet moves the composite by 85% of its nominal
weight, not 100%. The full arithmetic is at apis.io/rating/.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/amentum: open an issue to ask a question, or submit a pull request to add artifacts.
Submit an artifact on GitHub — free →Manage your own listing — the Influence plan, $499/mo →
Lifecycle engineering, operations, training, logistics, and sustainment support for U.S. and allied military, intelligence, and mission customers across air, land, sea, space, a...
Space Systems
Mission systems and ground operations for civil and national security space, including prime contracting on NASA's Exploration Ground Systems Program at Kennedy Space Center sup...
Digital Transformation
IT modernization, cloud migration, software engineering, data platforms, and managed services for defense, intelligence, and civilian agencies.
Sustainability & Environment
Environmental remediation, climate resilience, hazardous waste, and munitions response work for federal and state environmental missions.
Advanced Energy Solutions
Nuclear, clean energy, and energy infrastructure engineering, including Owner's Engineer roles for new Small Modular Reactor programs and support to national laboratories.
Data Analytics & Cyber
Mission cyber, intelligence analytics, AI/ML, and offensive and defensive cyber capabilities inherited from Jacobs' Cyber & Intelligence portfolio.
aid: amentum
name: Amentum
description: 'Amentum Holdings, Inc. (NYSE: AMTM) is a global advanced engineering and technology solutions company serving
U.S. federal customers across defense, intelligence, energy, space, and civilian missions, with allied work in the United
Kingdom and Australia. The company was created from the spin-off of AECOM''s Management Services business in 2020, and on
September 27, 2024 completed a Reverse Morris Trust transaction with Jacobs Solutions to merge Jacobs'' Critical Mission
Solutions (CMS) and Cyber & Intelligence (C&I) businesses into Amentum. Post-merger Amentum reports approximately $14.4
billion in fiscal year 2025 revenue, a $47.1 billion backlog, ~53,000 employees in 80 countries, and is headquartered in
Chantilly, Virginia. The business is organized around six capability areas — Mission Modernization & Sustainment, Space
Systems, Digital Transformation, Sustainability & Environment, Advanced Energy Solutions, and Data Analytics & Cyber. Most
delivery occurs under contract through classified, CAC-gated, or program portals; no public developer portal, OpenAPI, or
REST API has been identified.'
type: Index
deliveryModel:
model: saas
open_source: false
commercial: true
callable_host: false
label: Hosted service · you call their endpoint
confidence: medium
source:
- pricing
generated: '2026-08-28'
method: derived
accessModel:
pricing: unknown
onboarding: unknown
trial: false
try_now: false
public: false
label: Unknown
confidence: low
source: []
generated: '2026-07-22'
method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/amentum.png
tags:
- Federal Services
- Defense IT
- National Security
- Intelligence
- Space Systems
- Nuclear
- Energy
- Environmental Services
- Engineering Services
- Cyber
- Digital Transformation
- Government Contractor
url: https://raw.githubusercontent.com/api-evangelist/amentum/refs/heads/main/apis.yml
created: '2026-05-23'
modified: '2026-05-23'
specificationVersion: '0.23'
apis: []
common:
- type: DomainSecurity
url: security/amentum-domain-security.yml
- type: Website
url: https://www.amentum.com
- type: About
url: https://www.amentum.com/about-us
- type: Newsroom
url: https://www.amentum.com/news
- type: Blog
url: https://www.amentum.com/news
- type: Careers
url: https://www.amentumcareers.com
- type: InvestorRelations
url: https://investors.amentum.com
- type: SECFilings
url: https://investors.amentum.com/financials/sec-filings/
- type: Contact
url: https://www.amentum.com/contact-us
- type: LinkedIn
url: https://www.linkedin.com/company/amentum
- type: X
url: https://twitter.com/amentum_corp
- type: YouTube
url: https://www.youtube.com/@amentumcorp
- type: PrivacyPolicy
url: https://www.amentum.com/privacy-policy
- type: TermsOfService
url: https://www.amentum.com/terms-of-use
- type: Features
data:
- name: Mission Modernization & Sustainment
description: Lifecycle engineering, operations, training, logistics, and sustainment support for U.S. and allied military,
intelligence, and mission customers across air, land, sea, space, and cyber domains.
- name: Space Systems
description: Mission systems and ground operations for civil and national security space, including prime contracting
on NASA's Exploration Ground Systems Program at Kennedy Space Center supporting the Artemis program.
- name: Digital Transformation
description: IT modernization, cloud migration, software engineering, data platforms, and managed services for defense,
intelligence, and civilian agencies.
- name: Sustainability & Environment
description: Environmental remediation, climate resilience, hazardous waste, and munitions response work for federal and
state environmental missions.
- name: Advanced Energy Solutions
description: Nuclear, clean energy, and energy infrastructure engineering, including Owner's Engineer roles for new Small
Modular Reactor programs and support to national laboratories.
- name: Data Analytics & Cyber
description: Mission cyber, intelligence analytics, AI/ML, and offensive and defensive cyber capabilities inherited from
Jacobs' Cyber & Intelligence portfolio.
- type: Customers
data:
- name: U.S. Department of Defense
description: Army, Air Force, Navy & Marine Corps, and Special Operations Command across CONUS and forward-deployed locations.
- name: U.S. Intelligence Community
description: Mission systems, analytics, linguistics, and cyber programs for the intelligence enterprise.
- name: NASA
description: Prime contractor for NASA's Exploration Ground Systems Program at Kennedy Space Center, supporting the Artemis
program including Artemis II launch and recovery.
- name: U.S. Department of Energy
description: Engineering, operations, and environmental work at national laboratories including Lawrence Livermore National
Laboratory and Idaho National Laboratory.
- name: U.S. Department of Homeland Security
description: USCIS biometrics services at 130 USCIS locations across the United States and its territories.
- name: U.S. Allies
description: United Kingdom MoD (including Owner's Engineer role for the UK's first Small Modular Reactors), Australian
Defence Force, and other partner-nation programs.
- name: U.S. Civilian Agencies
description: State, civilian, and emergency response customers including a $425 million CAL FIRE aerial firefighting operations
support contract.
- type: Compliance
data:
- name: U.S. Government Security Clearance
description: Personnel hold U.S. government security clearances up to TS/SCI with polygraph as required by program. Personnel
security policies cover drug abstinence windows prior to clearance application.
- name: Federal Contracting
description: Operates under Federal Acquisition Regulation (FAR) and Defense FAR Supplement (DFARS) including cybersecurity,
supply chain, and accounting compliance for U.S. federal contracts.
- type: Subsidiaries
data:
- name: Amentum Technology, Inc.
description: Formerly Jacobs Technology Inc. / Jacobs Technology Group; renamed following the 2024 merger.
- name: Amentum Digital Infrastructure, Inc.
description: Formerly Jacobs Telecommunications Inc.; renamed following the 2024 merger.
- type: Headquarters
url: https://www.amentum.com/contact-us
maintainers:
- FN: Kin Lane
email: kin@apievangelist.com
Discovery needs no key. Ratings and market analysis are Pro.
Get an API key
Free tier, no form to fill in. Signing in shares your email address with us — we
store it to create your key and to recognise you if you sign in with another
provider. See our Privacy Policy and
Terms.
Kin Score
How this is scored →