Amentum

What Amentum does

Amentum is a publicly traded (NYSE: AMTM) advanced engineering and technology solutions company headquartered in Chantilly, Virginia, with approximately 50,000 employees operating across 70+ countries. It provides six core capability lines — Mission Modernization & Sustainment, Space Systems, Digital Transformation, Sustainability & Environment, Advanced Energy Solutions, and Data Analytics & Cyber — serving primarily the U.S. federal government (DoD, DOE, NASA, DHS) and allied governments in defense, nuclear energy, space exploration, intelligence, and critical infrastructure programs.

The company's technology stack spans proprietary systems such as SIAL (on-site, room-temperature conditioning of radioactive waste), Model-Based Systems Engineering (MBSE) frameworks, the CG-SEA ground system for missile defense, and a newly built enterprise-wide AI operating model that integrates OpenAI, Google, Microsoft, and AWS tools across the workforce. Major contract vehicles include NASA's Exploration Ground Systems prime at Kennedy Space Center (Artemis, SLS, Orion), the UK nuclear deterrent sustainment program, Air Force RPA sustainment ($995M), and a portfolio of RDT&E and C5ISR programs delivered across 11 test ranges in 9 states.

Amentum generates revenue primarily through multi-year fixed-price and cost-reimbursement government services contracts, with approximately 80% of revenue from U.S. federal customers and the remaining 20% split between commercial industries and allied foreign governments including the UK and Australia. Go-to-market is direct enterprise sales supported by IDIQ contract vehicles (OASIS+, GSA, DIA SIA 3), strategic joint ventures (Litmus Nuclear with Cavendish Nuclear, Torus Defence Supply Chain with GXO/Accenture/Maersk, Ascend with Aerodyne Industries), and senior leadership engagement on major pursuits. FY2026 revenue is guided to $13.95-$14.30B with adjusted EBITDA of $1.10-$1.14B, supported by a record $47.8B backlog.

Name

Amentum

Legal name

Amentum Services, Inc.

Website

https://amentum.com

Company type

Public

Founded year

2014

Operating status

Operating

Headcount range

5,001–10,000 employees

Short description

Amentum is a publicly traded advanced engineering and technology solutions provider serving primarily the U.S. federal government and allied governments across defense, nuclear, space, intelligence, and critical infrastructure programs, with ~50,000 employees and a $47.8B backlog.

Ownership category

akta.pro rank

Product category

Government Technical & Engineering Services

NAICS

Scientific Research and Development Services (5417), Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing (336419), Space Research and Technology (92711)

SIC

Guided Missiles & Space Vehicles & Parts (3760), Services-Computer Programming, Data Processing, Etc. (7370), Search, Detection, Navagation, Guidance, Aeronautical Sys (3812)

akta.pro primary industry

Mechanical, Electrical & Piping Installation (MEP) (EUAKAAAG)

akta.pro secondary industries

In-Service Inspection (ISI) & NDE (ASME Code, Ultrasonics, Eddy Current) (EUAKABAF), Application Maintenance & Support (AMS) (BPAEAFAC)

Keywords

• Government engineering services
• Defense mission support
• Nuclear energy solutions
• Space systems engineering
• Advanced technology services

Headquarters

HQ city

Germantown

HQ country

United States

HQ region

North America

Offices6 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Infrastructure, Supply Chain, Marketing or Sales

Revenue model

1. U.S. Government Services: Approximately 80% of revenue from U.S. federal government contracts including DoD, DOE, NASA, DHS, and other agencies. Services include engineering, technology, mission-support, logistics, and operational support across defense, intelligence, space, and civilian domains.
2. International Government Services: Operations serving allied governments including UK Ministry of Defence, Australian Defence Force, and European government agencies for nuclear, defense, and infrastructure services.
3. Commercial Services: Approximately 20% of business serving commercial clients including telecommunications, energy, manufacturing, and infrastructure sectors. Commercial work can be applied and adapted for government contracts.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels5 records

Core offering

Amentum is a global engineering and technology solutions provider delivering mission-critical services across defense, space, intelligence, nuclear energy, and digital transformation. The company executes large multi-year government contracts encompassing systems engineering, RDT&E, C5ISR sustainment, space launch operations, nuclear facility support, environmental remediation, and AI-enabled logistics. Approximately 80% of revenue comes from U.S. federal agencies and 20% from allied foreign governments and commercial clients.

Product overview

Amentum is a global advanced engineering and technology solutions company providing integrated service offerings across six core capability areas: Mission Modernization & Sustainment, Space Systems, Digital Transformation, Sustainability & Environment, Advanced Energy Solutions, and Data Analytics & Cyber. The company operates primarily as a government services contractor, delivering solutions through major contract vehicles including NASA's Exploration Ground Systems Program (COMET, EGS), defense RDT&E programs, and international nuclear energy projects. The portfolio includes specialized sub-capabilities such as Global Logistics & Supply Chain Management, C5ISR, UAS/CUAS Engineering, and Naval Deterrent Sustainment, all designed to work together as integrated solutions for government and critical infrastructure clients.

Differentiator

Problem solved

Functional benefit

Products and services

• Global Logistics & Supply Chain Management Industry-leading Global Supply Chain Management (GSCM) organization delivering goods and services to challenging environments worldwide, leveraging AI-enabled demand planning, forecasting, and catalogue management to support U.S. and allied defense operations including Indo-Pacific logistics.
• Space Systems Services Full lifecycle aerospace capabilities including ground systems, spaceports, spaceflight hardware, orbital operations, exploration science, and satellite payloads for NASA, DoD, and commercial clients, anchored by Amentum's role as prime contractor for NASA's Exploration Ground Systems Program at Kennedy Space Center supporting the Artemis program.
• Digital Transformation Services Tailored software development, information analytics, critical infrastructure, advanced networks, cybersecurity, digital engineering, and cloud services for government and commercial clients, supported by an enterprise AI operating model built in partnership with OpenAI, Google, Microsoft, and AWS.
• Sustainability & Environment Services Environmental remediation, decommissioning, site assessment, consulting, risk assessment, regulatory compliance, PFAS eradication, and radioactive waste management using proprietary SIAL technology for on-site room-temperature conditioning of radioactive waste streams.
• Advanced Energy Solutions Renewable energy consulting, commissioning and operational support, nuclear engineering and design, and regulatory and site licensing for nuclear programs, including the UK's Small Modular Reactor (SMR) program, Hinkley Point C new build, and U.S. Department of Energy's ARPA-E SCALEUP Ready deep borehole disposal demonstration.
• Data Analytics & Cyber Services All-source intelligence collection, counter intelligence, continuous cyber monitoring, offensive and defensive cyber operations, full-spectrum cyber training, and advanced communication solutions for U.S. intelligence community and DoD customers.
• NASA Exploration Ground Systems Program Prime contract at NASA's Kennedy Space Center supporting the Artemis Program with development, integration, and operations of flight vehicle components including Space Launch System (SLS) rocket and Orion crew capsule assembly, integration, testing, launch, and recovery.
• C5ISR Systems Engineering & Sustainment Integrated solutions for command, control, communications, computers, combat systems, intelligence, surveillance, and reconnaissance, including the proprietary CG-SEA ground architecture, ensuring mission success in complex operational environments.
• UAS / C-UAS Engineering & Sustainment Unmanned Aerial Systems development, integration, and maintenance with counter-UAS capabilities including Left of Launch C-UAS solutions for U.S. and allied defense customers.
• Naval Deterrent Sustainment Key supplier to the UK naval nuclear propulsion program providing research, technology services, and nuclear safety advice for existing submarine reactors and future propulsion plant development, operating across all sites crucial to the UK's independent nuclear deterrent.

Quantifiable outcome

• Backlog of $47.8 billion provides long-term revenue visibility and growth pipeline
• +2 more outcomes

Named customers10 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability5 records

Feature5 records

Partnerships

13 partnerships are on record, tiered strategic, core and minor.

• Deep Isolation NuclearstrategicStrategic or Co-development Partner · 17 June 2026Amentum participates in consortium with Deep Isolation, Halliburton, NAC International, and Occlusion Nuclear Solutions for world's first full-scale deep borehole disposal demonstration at Cameron, Texas. Project supported by DOE's ARPA-E SCALEUP Ready program with up to $20M funding.
• AssystemstrategicStrategic or Co-development Partner · 17 June 2026Joint venture partner in ITER project participation through Korean Electric Power Technology for design, manufacturing, project management, and workforce training on fusion technology.
• OpenAIstrategicTechnology or Integration · 19 May 2026Amentum has been working with OpenAI for two years as part of enterprise AI strategy. Company matches AI tools to customer needs across its 50,000-person workforce.
• Cavendish Nuclear (Joint Venture Litmus Nuclear)coreStrategic or Co-development Partner · 1 April 2026Joint venture Litmus Nuclear awarded $406M contract to serve as owner's engineer for UK's first small modular reactor program at Wylfa. Contract supports Rolls-Royce SMR technology deployment for up to 14 years.
• Torus Defence Supply Chain Alliance (GXO, Accenture, Maersk)strategicStrategic or Co-development Partner · 12 March 2026Amentum, GXO Logistics, Accenture, and A.P.Moller – Maersk formed Torus Defence Supply Chain alliance to enhance UK defence sector's supply chain resilience. Alliance leverages partners' expertise in logistics, digital transformation, and military operations.
• Lockheed MartinminorImplementation/ SI/ Consulting Partner · 29 January 2026Lockheed Martin acquired Amentum's Rapid Solutions business for integration of advanced space and airborne mission capabilities.
• EDF (Électricité de France)coreStrategic or Co-development Partner · 27 January 2026Amentum won contracts worth up to $730M (£540M) from EDF expanding support for UK's existing nuclear fleet and Hinkley Point C new build programme. Includes ten-year Professional Services Agreement frameworks and five-year Project Management Resources framework deploying over 1,000 UK-based specialists.
• UnipartminorChannel Partner/ Reseller/ Distributor · 25 January 2026Unipart selected as supply chain partner for Rolls-Royce Small Modular Reactor nuclear programme operating as part of Amentum's team alongside Mace, Turner & Townsend, and Hochtief.
• ArcadisstrategicStrategic or Co-development Partner · 22 January 2026Arcadis secured position in Nexus-NL consortium led by Amentum Clean Energy for Dutch nuclear power plant project development. Contract carries maximum value of €180M over initial two-year term extendable to five years.
• Rolls-Royce SMRcoreStrategic or Co-development Partner · 20 January 2026Amentum selected as program delivery partner for first Rolls-Royce Small Modular Reactor deployments in UK and Czech Republic. Partnership covers integration, oversight, governance, construction management, and execution of SMR deployment for Wylfa site (up to 1.5GW) and Temelín region project (up to 3GW).
• GooglestrategicTechnology or IntegrationAI partnership for enterprise-wide AI operating model deployment across government services operations.
• MicrosoftstrategicTechnology or IntegrationAI partnership for enterprise solutions matching AI tools to customer needs.
• Amazon Web Services (AWS)strategicTechnology or IntegrationCloud and AI partnership for government and commercial client solutions.

Scale indicators11 records

Recent moves8 records

Expansion highlights5 records

Direct peers

• KBR, Inc. KBR is a direct peer offering government services, sustainable technology, and nuclear/scientific solutions across defense, space, and energy. Closely comparable to Amentum in mission areas, customer mix (U.S. DoD, NASA, allied governments), and nuclear EPC capabilities.
• Leidos Holdings, Inc. Leidos is a direct peer providing science and engineering solutions to U.S. and allied governments across defense, intelligence, civil, and health markets. Comparable in scale, government revenue mix, and integration of technology into mission-critical programs.
• SAIC (Science Applications International Corporation): SAIC is a direct peer delivering engineering, digital, and mission IT services primarily to U.S. federal customers including DoD, intelligence community, and civilian agencies. Overlapping capabilities in digital transformation, C5ISR, and systems engineering make it highly comparable.
• Booz Allen Hamilton Holding Corporation: Booz Allen Hamilton is a direct peer providing management and technology consulting to U.S. federal clients across defense, intelligence, and civil markets. Highly comparable in federal revenue concentration, advanced engineering services, and AI/digital capability focus.
• Parsons Corporation: Parsons is a direct peer delivering defense, intelligence, and critical infrastructure solutions including space, missile defense, and nuclear programs. Overlapping customer base (DoD, NASA, DOE) and capabilities in C5ISR, space systems, and federal engineering services.
• CACI International Inc. CACI is a direct peer providing expertise and technology to U.S. federal customers in defense, intelligence, and civilian agencies. Comparable in mission-focused engineering, IT modernization, and intelligence/cybersecurity services for government.
• Jacobs Solutions Inc. Jacobs Solutions is a direct peer in critical infrastructure consulting and advanced engineering; Amentum's Critical Mission Solutions and Cyber & Intelligence units were spun out of Jacobs in the September 2024 merger, making it the closest structural comparable.
• Bechtel Corporation: Bechtel is a direct peer in large-scale nuclear EPC, environmental remediation, and government infrastructure. Comparable in nuclear program delivery (decommissioning, SMR support) and federal market positioning for complex engineering projects.
• Fluor Corporation: Fluor is a direct peer in nuclear, energy, and government services EPC, including nuclear new build and DOE site management. Comparable in nuclear engineering, mission solutions, and federal environmental/energy program delivery.

Broad incumbents

• Northrop Grumman Corporation: Northrop Grumman is a broad incumbent defense prime that overlaps with Amentum across missile defense, C5ISR, space systems, and sustainment programs. Comparable as a major government services customer/partner, though its portfolio spans much broader aerospace and defense systems.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/amentum_corp
• Facebookfacebook.com/amentumcorp
• LinkedInlinkedin.com/company/amentumcorp

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Subsidiaries5 records

Funding overview

Funding rounds2 records

Investors1 record

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A4 records

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Amentum