What Pacific Architects and Engineers does

Pacific Architects and Engineers, now operating under the legal entity Amentum Services, Inc. and listed on NYSE under ticker AMTM, is a global government services and advanced engineering contractor founded in 1955 and headquartered in Chantilly, Virginia. The company serves the U.S. Department of Defense (Army, Air Force, Navy/Marine Corps, Special Operations), the Department of Energy and national laboratories (Lawrence Livermore, Idaho, Savannah River), NASA (notably prime contractor for the Exploration Ground Systems Program supporting Artemis), the Department of Homeland Security and USCIS, as well as allied governments including the UK Ministry of Defence, EDF Energy, and the TEPCO/Mitsubishi consortium. Approximately 50,000 employees deliver services across more than 70 countries and all seven continents. Revenue is generated primarily through multi-year, contract-based professional services negotiated directly with federal and allied government agencies; specific pricing is not publicly disclosed.

The company's capabilities are organized into six service lines: Mission Modernization & Sustainment (global logistics, RDT&E, C5ISR, UAS/CUAS, aviation/naval engineering, intelligence infrastructure, nuclear deterrence, medical/disaster response), Space Systems (ground systems, spaceflight hardware, orbital operations, satellite payloads with proprietary AESA radar), Digital Transformation (DevSecOps, cloud, cybersecurity, digital engineering), Sustainability & Environment (remediation, PFAS eradication, radioactive waste management including the proprietary SIAL conditioning technology), Advanced Energy Solutions (nuclear lifecycle, renewables, lab operations), and Data Analytics and Cyber (all-source intelligence, cyber operations, integrated biometrics, business process analytics). Notable proprietary technologies include SIAL room-temperature conditioning of radioactive waste, AESA radar for satellite payloads, and harsh-environment robotics originally developed in nuclear reactor settings.

The go-to-market is enterprise field sales through direct relationships with government procurement offices, leveraging IDIQ contracts and dedicated contracting vehicles and joint ventures. Customer concentration is overwhelmingly governmental across U.S. federal, NASA, DOE, DHS, and allied defense and nuclear agencies. The company is structured for long-cycle, mission-critical program delivery rather than commercial product distribution, with capabilities executed at dedicated sites including Kennedy Space Center, the UK nuclear deterrent estate, Fukushima cleanup operations, and 130+ USCIS biometrics locations.

Name

Pacific Architects and Engineers

Legal name

Amentum Services, Inc.

Website

https://pae.com

Company type

Public

Founded year

1955

Operating status

Operating

Headcount range

5,001–10,000 employees

Short description

Pacific Architects and Engineers, operating as Amentum (NYSE: AMTM), is a global government services contractor founded in 1955, delivering advanced engineering, digital, nuclear, space, and logistics support to U.S. federal agencies and allied governments across 70+ countries with approximately 50,000 employees.

Ownership category

akta.pro rank

Product category

Government and Defense Services

NAICS

Engineering Services (541330), Architectural, Engineering, and Related Services (5413), Computer Systems Design Services (541512), Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing (334511), Guided Missile and Space Vehicle Manufacturing (336414)

SIC

Services-Engineering Services (8711), Services-Computer Integrated Systems Design (7373), Services-Engineering, Accounting, Research, Management (8700), Search, Detection, Navagation, Guidance, Aeronautical Sys (3812), Guided Missiles & Space Vehicles & Parts (3760)

akta.pro primary industry

Systems Engineering & Technical Program Management (BPAHAIAI)

akta.pro secondary industries

Production Design & Detailed Engineering (3D CAD, Drawings, BOM, Nesting) (IMAJAGAK), Marine Systems Engineering (Piping, HVAC, Fuel, Ballast, Firefighting) (IMAJAGAD), Civil & Structural Engineering Consulting (BPAHAIAA)

Keywords

• Defense logistics services
• Mission sustainment operations
• Government contractor services
• Facilities management
• National security solutions

Headquarters

HQ city

Arlington

HQ country

United States

HQ region

North America

Offices9 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Government Defense Contracts: Amentum provides advanced engineering and technology solutions to U.S. Department of Defense branches including Army, Air Force, Navy/Marine Corps, and Special Operations. Contracts include mission modernization, sustainment, C5ISR systems, UAS/CUAS engineering, aviation engineering, naval engineering, and advanced test/training services.
2. Intelligence and National Security Contracts: Supports national security and intelligence operations including counter-intelligence solutions, cyber operations, and critical infrastructure protection for government agencies.
3. Space Programs: NASA Artemis program support including Exploration Ground Systems, Space Launch System, Orion crew capsule, ground systems at Kennedy Space Center, and orbital operations for tracking man-made objects in space.
4. Nuclear Energy and Environmental Services: Comprehensive nuclear lifecycle solutions including nuclear engineering and design, operational support, life extension, radioactive waste management, environmental remediation, and decommissioning. Includes support for UK nuclear deterrent operations.
5. Digital Transformation Services: DevSecOps software development, information analytics, cybersecurity, cloud solutions, critical infrastructure networks, and digital engineering for government and commercial clients.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels7 records

Core offering

Pacific Architects and Engineers provides outsourced advanced engineering, logistics, and mission-support services to the U.S. government and allied nations, with primary emphasis on defense readiness, peacekeeping, and national security programs. Offerings span supply chain and logistics management, research/development/test/evaluation (RDT&E), C5ISR systems, UAS/CUAS, aviation/naval/land engineering, space systems support (including NASA ground systems), nuclear operations and remediation, environmental remediation, intelligence and biometrics, and digital transformation services delivered under multi-year contracts.

Product overview

Amentum (parent of Pacific Architects and Engineers) offers a multi-platform integrated service architecture with six core service lines: Mission Modernization & Sustainment (covering defense logistics, RDT&E, C5ISR, UAS, aviation, naval, nuclear deterrence, and medical response), Space Systems (NASA Artemis, ground systems, orbital operations, satellite payloads), Digital Transformation (DevSecOps, cloud, cybersecurity), Sustainability & Environment (remediation, PFAS, radioactive waste), Advanced Energy Solutions (nuclear, renewables), and Data Analytics and Cyber (intelligence, biometrics, cyber operations). These platforms operate independently and in integration to deliver comprehensive engineering and technology solutions to government and commercial clients worldwide.

Differentiator

Problem solved

Functional benefit

Brands

• SIAL: SIAL technology, developed by Amentum, allows on-site, room temperature conditioning of various standard and problematic radioactive waste streams including resins.

Products and services

• Mission Modernization & Sustainment Integrated defense mission support covering global logistics and supply chain management, RDT&E, C5ISR systems engineering and sustainment, UAS/CUAS engineering, aviation engineering, land vehicle and equipment sustainment, naval engineering and deterrent sustainment, advanced test/training/aerial systems, intelligence infrastructure solutions, national security and nuclear deterrence, and medical and disaster response for U.S. and allied defense customers.
• Space Systems Full-spectrum space capability spanning ground systems (e.g., NASA's Exploration Ground Systems Program prime contract at Kennedy Space Center supporting Artemis), space ports, spaceflight hardware (SLS and Orion technical leadership), orbital operations (tracking/cataloging man-made objects in space), exploration science, and satellite payloads featuring proprietary AESA radar technology.
• Digital Transformation Technology modernization services for government and allied clients including DevSecOps software development and engineering, information analytics, critical infrastructure and advanced networks, cybersecurity, digital engineering, cloud solutions, agile delivery, and AI-driven business process analytics.
• Sustainability & Environment Environmental solutions including environmental remediation and decommissioning, site assessment and characterization, environmental consulting, environmental risk assessment, regulatory compliance/permitting/licensing, PFAS eradication, environmental site restoration, and radioactive waste management and radiation protection (including proprietary SIAL conditioning).
• Advanced Energy Energy sector services including renewable energy solutions (fusion power), energy consulting, commissioning/operational support/life extension, research/laboratory/energy test bed operations, nuclear engineering and design, nuclear energy programs, and regulatory/site licensing/permitting for civil nuclear and renewable programs.
• Data Analytics and Cyber Intelligence and cybersecurity services including all-source intelligence collection and analytics, counter-intelligence, continuous cyber monitoring and threat analytics, offensive/defensive cyber operations, full-spectrum cyber training, advanced intelligence communication solutions, managed bandwidth and network solutions, integrated biometrics, and business process analytics for government and commercial clients.

Quantifiable outcome

• Supports Artemis Program with development, integration, and operations of flight vehicle components including assembly, integration, testing, launch, and recovery
• +3 more outcomes

Named customers13 records

Segments7 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability7 records

Feature3 records

Partnerships

Eight partnerships are on record, tiered flagship, core, major and standard.

• NASAflagshipStrategic or Co-development PartnerAmentum serves as prime contractor for NASA's Exploration Ground Systems Program at Kennedy Space Center, supporting the Artemis Program with development, integration, and operations of flight vehicle components including assembly, integration, testing, launch, and recovery. Also provides technical leadership on Space Launch System (SLS) rocket and Orion crew capsule programs.
• U.S. Department of DefensecoreStrategic or Co-development PartnerLong-standing strategic partner providing advanced engineering, technology solutions, and mission support across all DOD branches including Army, Air Force, Navy & Marine Corps, and Special Operations Commands. Has provided RDT&E capabilities to DOD for more than 65 years.
• U.S. Department of EnergycoreStrategic or Co-development PartnerStrategic partner operating at Lawrence Livermore National Laboratory and Idaho National Laboratory for the U.S. Department of Energy, providing nuclear deterrence, counterterrorism, and defense research applications. Also supports Savannah River Site operations.
• UK Ministry of DefencecoreStrategic or Co-development PartnerAmentum operates on every site crucial to the UK's independent nuclear deterrent. Supports UK civil nuclear power programs through Generic Design Assessments (GDAs) for new nuclear build including Gigawatt Nuclear and Advanced/Small Modular Reactors.
• EDF EnergymajorStrategic or Co-development PartnerSupports Hinkley Point C nuclear power station construction in the UK, providing technical expertise in nuclear engineering and construction management for one of the world's most significant energy infrastructure projects.
• Tokyo Electric Power Company Holdings (TEPCO) / Mitsubishi Heavy IndustriesmajorStrategic or Co-development PartnerCombining innovative engineering and deep nuclear knowledge to create equipment needed to advance the Fukushima cleanup. Amentum designed specialized equipment for the Fukushima Daiichi nuclear cleanup operations.
• U.S. Army Corps of Engineers (USACE)coreStrategic or Co-development PartnerProvides comprehensive site assessment and characterization services to support environmental remediation and compliance for USACE projects across various military installations and civil works projects.
• Federal Aviation AdministrationstandardStrategic or Co-development PartnerProvides site assessment and characterization services to support environmental compliance for FAA facilities and operations.

Scale indicators5 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• SAIC: Federal IT and engineering services provider serving DOD, intelligence, space, and civilian agencies — directly overlaps with Amentum in systems engineering, digital transformation, and mission support.
• KBR: Government services and engineering company with strong DOD logistics, sustainment, and science/space business — directly overlaps in mission support and government solutions.
• Booz Allen Hamilton: Federal consulting and engineering services firm with deep DOD, intelligence, and civilian agency relationships — competing head-to-head for advisory, digital, cyber, and engineering task orders.
• Parsons Corporation: Engineering and defense services company with critical infrastructure, defense, and intelligence customers — competes for federal engineering and systems integration work.
• CACI International: Federal services company specializing in C5ISR, intelligence, cyber, and space systems engineering — directly comparable in customer set and technical capabilities.
• Leidos: Large federal services and engineering prime serving DOD, intelligence, civil, and health agencies with mission solutions, IT, and engineering services — directly comparable to Amentum across virtually every customer segment.
• Jacobs Solutions: Engineering services firm with significant federal, nuclear, space, and environmental remediation work — directly comparable in advanced engineering, nuclear lifecycle, and environmental services.
• ManTech International: Federal services firm specializing in intelligence, cyber, and defense engineering — directly comparable in cleared talent and mission-focused solutions.

Emerging players

• Tetra Tech: Engineering and consulting firm specializing in water, environment, and sustainable infrastructure — directly comparable in environmental remediation and federal civilian work, smaller in defense.

Broad incumbents

• ICF International: Professional services firm serving federal civilian, energy, and environment clients — comparable in energy and environmental remediation but less concentrated in DOD/space.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks7 records

Key highlights7 records

Customer concentration

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Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Subsidiaries1 record

Funding overview

Funding rounds1 record

Investors2 records

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M&A3 records

Investments

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

Frequently asked questions about Pacific Architects and Engineers