Leidos competitors and similar companies

1. 

   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
   • Both use Acquia Cloud Platform
2. 

   DXC Technology

   dxc.com

   DXC Technology helps global companies run their mission-critical systems and operations while modernizing IT, optimizing data architectures, and ensuring security and scalability across public, private and hybrid clouds.

   United States · 90,747 employees on LinkedIn

   • Both in Information Technology
   • Both hiring an engineering leader
   • Both based in United States
3. 

   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 a finance leader
4. 

   Tech Mahindra

   techmahindra.com

   We offer technology consulting and digital solutions to global enterprises across industries, enabling transformative scale at unparalleled speed.

   India · 155,528 employees on LinkedIn

   • Both in Information Technology
   • Both hiring an engineering leader
5. 

   Caci

   caci.com

   CACI International Inc is an information solutions and services provider, offering information solutions and services to its customers. The company's primary customers are agencies and departments of the U.S. government, which account for the vast majority of the firm's revenue. It provides information solutions and services supporting national security missions and government modernization for intelligence, defense, and federal civilian customers. Some of the services provided by the company are functional software development, data, and business analysis, IT operations support, naval architecture, and life cycle support intelligence among others. The company's operating segments are; Domestic operations and International operations. It derives key revenue from the Domestic segment.

   United States · 22,348 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 Acquia Cloud Platform
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. 

   Noblis

   noblis.org

   Discover the science, technology and engineering leader committed to enriching lives and making our nation safer for the best of reasons.

   United States · 1,228 employees on LinkedIn

   • Both in Information Technology
   • Both hiring fast
   • Both based in United States
8. 

   L3Harris Technologies

   l3harris.com

   In addition to its legacy software-defined radio franchise, L3Harris Technologies has, through a series of acquisitions, established franchises producing uncrewed aerial vehicles, sensors, avionics, space-based systems, missiles, and solid rocket motors. It is also adept at refitting civilian aircraft for military use, provides military and commercial training services, and maintains the US Federal Aviation Administration's communication infrastructure.

   United States · 31,534 employees on LinkedIn

   • Both in National Security
   • Both hiring an engineering leader
   • Same size: 10,001-50,000 employees
   • Both based in United States
9. 

   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
10. 

    HCL Technologies

    hcltech.com

    HCLTech - Global technology company, home to 223,000 people across 60 countries, supercharging progress for the world’s top enterprises by bringing together the best of technology and our people.

    India · 257,200 employees on LinkedIn

    • Both in Information Technology
    • Both hiring an engineering leader

Questions about Leidos

How many employees does Leidos have?

Leidos has 28,890 employees on LinkedIn, up 1% over the last 12 months.

Where is Leidos headquartered?

Leidos is headquartered in Reston, United States.

Who are Leidos' competitors?

Companies similar to Leidos include Jacobs, DXC Technology, QinetiQ, Tech Mahindra and Caci.

What technologies does Leidos use?

Leidos' website uses Cloudflare, jQuery, Swiftype, Drupal Multisite and Font Awesome and 15 more.

When was Leidos founded?

Leidos was founded in 1969.