How many employees work at ManTech International?

ManTech International Corp. has 11,999 employees, according to Revelio Labs workforce intelligence data. The YoY growth rate is -2.9%.

Data source: Revelio Labs Coverage: Global workforce Latest update: September 2025

About ManTech International

ManTech is more than a technology company. We are a company dedicated to service, and we consider our work a part of the public trust. The people of ManTech are privileged to work for the security of the United States, the welfare of our service members and veterans, the protection of our communities, and the cause of better health care. We have served the nation for more than 50 years, and in that time we have continually changed and grown to provide the technology that government needs to meet new challenges. We seek people with the same strong ethic of service, creativity, energy, and dedication to serving our country. We are comprised of more than 9,800 talented employees around the world. Nearly half of our employees are veterans. Many others come from the Intelligence Community, Homeland Security and federal civilian agencies. We understand our customers’ challenges because we know their world firsthand. When Federal managers and military leaders face tough challenges in cyber, data collection & analysis, enterprise IT or systems and software engineering, they turn to ManTech to get the job done right. These professionals trust ManTech and stay with us for years because we understand their needs and tackle their most complex challenges head on. They know that reaching their goal is our ultimate objective.

As of September 2025

ManTech International
workforce metrics

Headcount

12k

Avg. Salary

$117.3k

Tenure

5.9yr

Growth Rate

-2.9%

Hiring Rate

Attrition Rate

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Employee Headcount

Interactive chart of ManTech International annual worldwide employee count from 2023 to 2025.

  • ManTech International total number of employees in 2025 was 11,941.248, a 2.9% decline from 2024.
  • ManTech International total number of employees in 2024 was 12,009.987, a 3.3% decline from 2023.
  • ManTech International total number of employees in 2023 was 12,376.009, a 2.4% increase from 2022.

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Employee Geographic Breakdown

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Employee Role Breakdown

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Employee Compensation

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Active Job Postings

Interactive chart of ManTech International annual active job postings from 2023 to 2025.

  • ManTech International active job postings in 2025 was 8,082, a 20.0% decline from 2024.
  • ManTech International active job postings in 2024 was 7,151, a 5.4% increase from 2023.
  • ManTech International active job postings in 2023 was 6,773, a 67.5% decline from 2022.

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Employee Sentiment

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