How many employees work at National Nuclear Lab?

United Kingdom National Nuclear Laboratory Ltd. has 1,233 employees, according to Revelio Labs workforce intelligence data. The YoY growth rate is -1.1%.

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

About National Nuclear Lab

As the UK’s national laboratory for nuclear fission, NNL is harnessing nuclear science to help solve some of the world’s biggest challenges. Our purpose is ‘nuclear science to benefit society’ and we channel our work into four Focus Areas: Clean Energy, Health and Nuclear Medicine, Environmental Restoration and Security and Non-Proliferation. These strategic areas are the cornerstones of our ambition, shaping what we deliver to our customers and for UK society, and how we invest in our future. We are custodians of a unique set of facilities and capabilities that enable ground-breaking nuclear research and development, comprising four world-leading laboratories in North West England, a base in Wales and research sites at Risley in Cheshire, Stonehouse in Gloucestershire and Culham in Oxfordshire. We have a reputation as a home for stimulating, rewarding careers and are building a culture where everybody feels valued and can flourish. If you are looking for a role that enables you to put your skills and talents towards delivering sustainable solutions to the major challenges of the 21st century, visit: www.nnl.co.uk/careers/current-vacancies.

As of September 2025

National Nuclear Lab
workforce metrics

Headcount

1.2k

Avg. Salary

$74.7k

Tenure

4.9yr

Growth Rate

-1.1%

Hiring Rate

Attrition Rate

For even more metrics data,
reach out to our sales team.

Contact Sales

Employee Headcount

Interactive chart of National Nuclear Lab annual worldwide employee count from 2023 to 2025.

  • National Nuclear Lab total number of employees in 2025 was 1,236.053, a 1.1% decline from 2024.
  • National Nuclear Lab total number of employees in 2024 was 1,233.811, a 5.1% increase from 2023.
  • National Nuclear Lab total number of employees in 2023 was 1,175.257, a 0.7% decline from 2022.

Would you like to see the latest employee headcount data?

Contact Sales

Employee Geographic Breakdown

Would you like to see the latest employee geographic data?

Contact Sales

Employee Role Breakdown

Would you like to see the latest employee role breakdown data?

Contact Sales

Employee Compensation

Would you like to see the latest employee compensation data?

Contact Sales

Active Job Postings

Interactive chart of National Nuclear Lab annual active job postings from 2023 to 2025.

  • National Nuclear Lab active job postings in 2025 was 10, a 134.4% decline from 2024.
  • National Nuclear Lab active job postings in 2024 was 81, a 74.4% decline from 2023.
  • National Nuclear Lab active job postings in 2023 was 177, a 52.9% increase from 2022.

Would you like to see the latest active job postings data?

Contact Sales

Employee Sentiment

Sentiment Topics

Contact Sales
Contact Sales
Contact Sales
Contact Sales
Contact Sales
Contact Sales
Contact Sales
Contact Sales
Contact Sales
Contact Sales
Contact Sales
Contact Sales
Contact Sales
Contact Sales
Contact Sales
Contact Sales
Contact Sales
Contact Sales
Contact Sales
Contact Sales

Would you like to see the latest employee sentiment data?

Contact Sales