Amentum competitors and similar companies

1. 

   QinetiQ

   qinetiq.com

   QinetiQ is a global defence and security company delivering mission-critical solutions that protect lives and enable operational advantage. We combine deep technical expertise with bold innovation to solve complex challenges across land, sea, air, space and cyber.

   United Kingdom · 4,604 employees on LinkedIn

   • Both in Information Technology
   • Both hiring fast
2. 

   Fluor Corporation

   fluor.com

   Fluor, a leading engineering & construction company, provides engineering, procurement, construction (EPC), maintenance & project management services worldwide.

   United States · 36,687 employees on LinkedIn

   • Both hiring an engineering leader
   • Same size: 10,001-50,000 employees
   • Both based in United States
3. 

   Leidos

   leidos.com

   Leidos, a Fortune 500 digital and mission innovator, delivers solutions at the intersection of national security, health, and critical infrastructure. With a global workforce of approximately 47,000, we are carrying out our NorthStar 2030 strategy focusing on five growth engines where demand is expanding and our expertise sets us apart: space and maritime, energy infrastructure, digital modernization and cyber, mission software, and managed health.

   United States · 28,890 employees on LinkedIn

   • Both in Information Technology
   • Both hiring an engineering leader
   • Same size: 10,001-50,000 employees
   • Both based in United States
4. 

   Parsons Corporation

   parsons.com

   Parsons is a digitally enabled solutions provider and a leader in many diversified markets with a focus on national security, defense, and global infrastructure.

   United States · 20,850 employees on LinkedIn

   • Both in Information Technology
   • Both hiring an engineering leader
   • Same size: 10,001-50,000 employees
   • Both based in United States
   • Both use WordPress Block Editor, WP Engine and 1 more technology
5. 

   AtkinsRéalis

   atkinsrealis.com

   We are a world-class engineering services and nuclear organization. We connect people, data and technology to transform the world’s infrastructure and energy systems.

   Canada · 47,557 employees on LinkedIn

   • Both in Information Technology
   • Both hiring an engineering leader
   • Same size: 10,001-50,000 employees
6. 

   Booz Allen Hamilton

   boozallen.com

   We transform missions with tomorrow’s technologies to advance the country’s most critical civil, defense, and national security priorities.

   United States · 37,248 employees on LinkedIn

   • Both in Information Technology
   • Both hiring an engineering leader
   • Same size: 10,001-50,000 employees
   • Both based in United States
7. 

   MANTECH

   mantech.com

   Provider of information technology services intended to serve the United States defense, the intelligence community, and federal civilian agencies. The company provides full-spectrum cyber, encompassing defense, resilience, offense, analytics, and compliance, enabling clients to understand their needs and tackle their complex challenges head-on.

   United States · 10,443 employees on LinkedIn

   • Both in Information Technology
   • Both hiring an engineering leader
   • Both based in United States
8. 

   Akima

   akima.com

   Akima is a government contractor that advances missions with its 8(a) companies — IT, logistics, and more. Proudly Alaskan and an ANC.

   United States · 1,875 employees on LinkedIn

   • Both in Information Technology
   • Both hiring an engineering leader
   • Both based in United States
   • Both use WP Engine and WordPress Block Editor
9. 

   General Dynamics Information Technology

   gdit.com

   General Dynamics Information Technology (GDIT) is a global technology and professional services company that delivers consulting, technology, and mission services to every major agency across the U.S. government, defense, and intelligence community. With a workforce of 30,000 experts and consultants, GDIT harnesses the power of technology to create immediate value and deliver solutions at the edge of innovation. The company operates in over 30 countries worldwide, offering leading capabilities in digital modernization, artificial intelligence (AI), machine learning (ML), cloud computing, cyber defense, and application development. GDIT serves a diverse range of clients, primarily focusing on U.S. government agencies, including defense and intelligence sectors. The company’s business model revolves around providing tailored technology and consulting solutions that address the unique needs of its clients. GDIT generates revenue through long-term contracts and service agreements, ensuring a steady stream of income while fostering strong client relationships. The company’s mission is to create a safer, smarter world by leveraging deep expertise and advanced technology. GDIT’s commitment to innovation and excellence has earned it numerous awards and recognitions over its 50-year history. By continuously evolving and adapting to the ever-changing technological landscape, GDIT remains at the forefront of the industry, delivering cutting-edge solutions that outthink the threats of tomorrow. Keywords: consulting, technology, mission services, U.S. government, defense, intelligence, digital modernization, AI, cloud, cyber defense.

   United States · 26,752 employees on LinkedIn

   • Both in Information Technology
   • Both hiring an engineering leader
   • Same size: 10,001-50,000 employees
   • Both based in United States
10. 

    Jacobs

    jacobs.com

    Jacobs Solutions is a global provider of engineering, design, procurement, construction, and maintenance services as well as cyber engineering and security solutions. The firm serves industrial, commercial, and government clients in a wide variety of sectors, including water, transportation, healthcare, technology, and chemicals. Jacobs Solutions employs approximately 60,000 workers. The company generated $12 billion in revenue in fiscal 2025.

    United States · 66,983 employees on LinkedIn

    • Both in Information Technology
    • Both hiring an engineering leader
    • Both based in United States

Questions about Amentum

How many employees does Amentum have?

Amentum has 38,094 employees on LinkedIn, down 3% over the last 12 months.

Where is Amentum headquartered?

Amentum is headquartered in Chantilly, United States.

Who are Amentum's competitors?

Companies similar to Amentum include QinetiQ, Fluor Corporation, Leidos, Parsons Corporation and AtkinsRéalis.

What technologies does Amentum use?

Amentum's website uses Gutenberg, Priority Hints, Kadence WP Kadence, WordPress and SiteLock and 30 more.

When was Amentum founded?

Amentum was founded in 1955.