How many employees work at Institute Defense?

Institute for Defense Analyses has 1,758 employees, according to Revelio Labs workforce intelligence data. The YoY growth rate is -6.1%.

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

About Institute Defense

IDA (Institute for Defense Analyses) – a not-for-profit corporation headquartered in Alexandria, Virginia just outside Washington, DC – operates three Federally Funded Research and Development Centers (FFRDCs) in the public interest: the Systems and Analyses Center, the Science and Technology Policy Institute, and the Center for Communications and Computing. Sponsors rely on IDA for dispassionate, fact-based, and scientifically rigorous research and advice to inform their decisions. Since 1956, IDA’s basic mission has remained unchanged – bring the best scientific, technical, and analytic talent to bear on issues critical to U.S. National security, in a research environment free of commercial or shareholder interests where objectivity and the public interest are foremost. The work produced by IDA’s FFRDCs is characterized by unquestioned objectivity and high quality. Because of our unique relationship with our Government sponsors, IDA enjoys unusual access to highly classified and sensitive government and corporate proprietary information. We adhere to a strict regime for avoiding conflicts of interest. We are thus in the position of offering outsider perspectives on important issues with insider access to information. Our diverse mix of professionals possesses expertise in a broad range of technologies and systems combined with deep knowledge of costs, policies, operations, and organizational matters. IDA continually renews and evolves its staff, integrating those newly educated in the latest advances in research with seasoned veterans of acquisition management, policy-making, and operational leadership roles in government and defense-related organizations. The exceptional creativity, determination, and commitment to service that IDA researchers bring to their work are the foundation of IDA’s excellence.

As of December 2025

Institute Defense
workforce metrics

Headcount

1.8k

Avg. Salary

$130.2k

Tenure

6.6yr

Growth Rate

-6.1%

Hiring Rate

Attrition Rate

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Employee Headcount

Interactive chart of Institute Defense annual worldwide employee count from 2023 to 2025.

  • Institute Defense total number of employees in 2025 was 1,757, a 6.1% decline from 2024.
  • Institute Defense total number of employees in 2024 was 1,867, a 2.0% increase from 2023.
  • Institute Defense total number of employees in 2023 was 1,830, a 2.1% 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 Institute Defense annual active job postings from 2023 to 2025.

  • Institute Defense active job postings in 2025 was 34, a 34.1% decline from 2024.
  • Institute Defense active job postings in 2024 was 48, a 20.6% decline from 2023.
  • Institute Defense active job postings in 2023 was 59, a 71.7% decline from 2022.

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Employee Sentiment

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