How many employees does MANTECH have?

MANTECH has 10,443 employees on LinkedIn, down 3% over the last 12 months.

Where is MANTECH headquartered?

MANTECH is headquartered in Herndon, United States.

Who are MANTECH's competitors?

Companies similar to MANTECH include QinetiQ, Peraton, Booz Allen Hamilton, GovCIO and Noblis.

What technologies does MANTECH use?

MANTECH's website uses WordPress Multisite, Avature, YouTube, WordPress and Bootstrap and 21 more.

mantech.com

MANTECH competitors and similar companies

10,443 employees on LinkedIn, down 3% in 12 months. 10 similar companies, with why each one matches.

About MANTECH

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.

Headquarters: Herndon, United States
Employees on LinkedIn: 10,443
Headcount, last 12 months: -3%
Industry: Information Technology
Founded: 1968
Open jobs: 811

Data last updated October 3, 2026

How MANTECH sells and hires

Hiring

Very high hiring pace
Leadership roles open in engineering, finance and sales
6+ open roles each in finance, customer relations, design, engineering, HR, legal, product and sales
2-5 open roles each in marketing and quality control

Companies similar to MANTECH

Found by Ocean's lookalike search, with what each company has in common with MANTECH.

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
- Same size: 5,001-10,000 employees
Peraton
peraton.com

Peraton is a leading national security company delivering mission-critical technologies and IT solutions to protect the U.S. and its allies.

United States · 13,578 employees on LinkedIn
- Both in Information Technology
- Both hiring an engineering leader
- Both based in United States
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
- Both based in United States
GovCIO
govcio.com

GovCIO combines extensive federal experience, cutting-edge IT solutions, and a customer-first approach to government IT modernization.

United States · 3,177 employees on LinkedIn
- Both in Information Technology
- Both hiring fast
- Both based in United States
- Both use Flickity
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
Amentum
amentum.com

Amentum is a global leader in advanced engineering and innovative technology solutions, trusted by the United States and its allies to address their most...

United States · 38,094 employees on LinkedIn
- Both in Information Technology
- Both hiring an engineering leader
- Both based in United States
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
- Both based in United States
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
- Both based in United States
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
- Both based in United States
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
- Both based in United States

Technologies MANTECH uses

WordPress Multisite
Avature
YouTube
WordPress
Bootstrap
Unpkg
jQuery UI
Boomerang
Max Mega Menu
Google Tag Manager
HTTP/3
Google Font API
Flickity
jQuery
Akamai mPulse
RSS
HSTS
phpRS
SiteLock
Twitter Emoji (Twemoji)
Akamai
PHP
jsDelivr
Parse.ly
Vimeo
MySQL

Questions about MANTECH

How many employees does MANTECH have?: MANTECH has 10,443 employees on LinkedIn, down 3% over the last 12 months.
Where is MANTECH headquartered?: MANTECH is headquartered in Herndon, United States.
Who are MANTECH's competitors?: Companies similar to MANTECH include QinetiQ, Peraton, Booz Allen Hamilton, GovCIO and Noblis.
What technologies does MANTECH use?: MANTECH's website uses WordPress Multisite, Avature, YouTube, WordPress and Bootstrap and 21 more.
When was MANTECH founded?: MANTECH was founded in 1968.