How many employees work at Oak Ridge National Lab?
Oak Ridge National Laboratory has 6,554 employees, according to Revelio Labs workforce intelligence data. The YoY growth rate is 4.2%.
Data source: Revelio Labs Coverage: Global workforce Latest update: September 2025
About Oak Ridge National Lab
Oak Ridge National Laboratory is managed by UT-Battelle for the Department of Energy. Scientists and engineers at ORNL conduct basic and applied research and development to create scientific knowledge and technological solutions that strengthen the nation's leadership in key areas of science; increase the availability of clean, abundant energy; restore and protect the environment; and contribute to national security. ORNL also performs other work for the Department of Energy, including isotope production, information management, and technical program management, and provides research and technical assistance to other organizations.
As of September 2025
Oak Ridge National Lab
workforce metrics
Headcount
6.6k
Avg. Salary
$115.7k
Tenure
6.1yr
Growth Rate
4.2%
Hiring Rate
Attrition Rate
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Employee Headcount
Interactive chart of Oak Ridge National Lab annual worldwide employee count from 2023 to 2025.
- Oak Ridge National Lab total number of employees in 2025 was 6,623.419, a 4.2% increase from 2024.
- Oak Ridge National Lab total number of employees in 2024 was 6,363.192, a 8.2% increase from 2023.
- Oak Ridge National Lab total number of employees in 2023 was 5,874.145, a 10.1% increase from 2022.
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Employee Geographic Breakdown
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Active Job Postings
Interactive chart of Oak Ridge National Lab annual active job postings from 2023 to 2025.
- Oak Ridge National Lab active job postings in 2025 was 561, a 63.9% decline from 2024.
- Oak Ridge National Lab active job postings in 2024 was 913, a 42.6% decline from 2023.
- Oak Ridge National Lab active job postings in 2023 was 1,407, a 25.4% decline from 2022.
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Employee Sentiment
Sentiment Topics
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