How many employees work at Fermilab?
Fermi National Accelerator Laboratory has approximately 2,624 total employees worldwide as of March 2026, according to Revelio Labs workforce intelligence data. Fermilab’s total headcount has declined 7.6% from 2,839 employees in 2023 to 2,624 in 2026.
Is Fermilab hiring right now?
Yes, Fermilab is actively hiring. Fermilab had 135 active job postings in 2026, a 24.1% increase from 2025 — see job openings & hiring trends.
About Fermilab’s Workforce
Fermi National Accelerator Laboratory is a Research and Development company that employs 2,624 people worldwide as of March 2026. It is the 5th-largest by headcount among its peers. Founded in 1967, the company is headquartered in Batavia, Illinois.
Fermilab's workforce has declined 7.6% from 2023 to 2026, down 1.3% year over year in 2026. It fell to a low of 2,621 in 2025 Q4 before recovering. Its workforce is concentrated most in North America (97.8%), followed by Western Europe (0.4%) and East Asia (0.3%).
Fermilab's functional groups are Finance and Operations (49.0%), Engineering (28.7%), and Sales and Marketing (22.4%), with Sales and Marketing growing fastest (up 1.1%). The average salary is $104,032, ranging from a median of $104,000 in North America to $10,000 in South America.
Fermilab's active job postings rose 24.1% in 2026 to 135, with new postings per month cooling from 114 in 2023 to 62 in 2026. Overall employee sentiment is neutral but improving.
Sourced from Revelio Labs workforce data.
- Headquarters
- Batavia, Illinois
- Founded
- 1967
- Industry
- Research and Development
- Employees
- 2,624
- YoY
- -1.3% (-27)
As of March 2026
Fermilab workforce metrics
Unlock hiring rate, attrition rate, and 12 additional workforce metrics for Fermilab. Compare to peers, export the dataset, and access the full quarterly history.
Unlock MetricsFermilab Annual Employee Count (2023-2026)
- Fermilab had 2,624 employees in 2026, a 1.3% decline (-27) from 2025.
- Fermilab had 2,621 employees in 2025, a 1.7% decline (-60) from 2024.
- Fermilab had 2,681 employees in 2024, a 2.1% decline (-82) from 2023.
- Fermilab had 2,763 employees in 2023, a 1.1% increase (+288) from 2022.
Fermilab's total workforce has grown from 2,621 employees in 2025 to 2,624 in 2026. Fermilab's headcount peaked at 2,906 in 2024 before declining in 2025 and recovering through 2026.
Fermi National Accelerator Laboratory quarterly employee count
| Year | Qtr | Employees | YoY Change | YoY % |
|---|---|---|---|---|
| 2026 | Q1 | 2,624 | -27 | -1.3% |
| 2025 | Q4 | 2,621 | -60 | -1.7% |
| 2025 | Q3 | 2,629 | -135 | -3.2% |
| 2025 | Q2 | 2,744 | -162 | -3.1% |
| 2025 | Q1 | 2,651 | -143 | -2.9% |
| 2024 | Q4 | 2,681 | -82 | -2.1% |
| 2024 | Q3 | 2,764 | +15 | -0.6% |
| 2024 | Q2 | 2,906 | +67 | -1.8% |
| 2024 | Q1 | 2,794 | +286 | +1.1% |
| 2023 | Q4 | 2,763 | +288 | +1.1% |
| 2023 | Q3 | 2,749 | +308 | +1.0% |
| 2023 | Q2 | 2,839 | +335 | +2.7% |
See Fermilab's complete headcount history, including quarterly breakdowns.
Get the DataFermilab Employee Count by Region (2026)
North America accounts for the largest share of Fermilab's global workforce with approximately 98% of total employees, followed by Western Europe and East Asia.
Fermilab employees by region
| Region | Employees | % of Total |
|---|---|---|
| North America | 2,521 | 97.8% |
| Western Europe | 11 | 0.4% |
| East Asia | 7 | 0.3% |
| Southern Europe | 7 | 0.3% |
| Northern Europe | 6 | 0.2% |
| South Asia | 6 | 0.2% |
| South America | 5 | 0.2% |
| Sub-Saharan Africa | 5 | 0.2% |
| Central and Western Asia | 5 | 0.2% |
| Central America and the Caribbean | 2 | 0.1% |
Drill into city-level data, hiring trends by region, and historic geographic shifts.
Unlock Geographic DataFermilab Employee Count by Department (2026)
Fermilab's employee groups are Finance and Operations (49.0%), Engineering (28.7%), and Sales and Marketing (22.4%).
Fermilab employees by department
| Department | Employees | % of Total |
|---|---|---|
| Finance and Operations | 1,278 | 49.0% |
| Engineering | 748 | 28.7% |
| Sales and Marketing | 584 | 22.4% |
Compare Fermilab's department mix to industry peers.
See Full DataFermilab Employee Salary by Region (2026)
Fermilab's average employee salary is $104,032 globally. Employees in North America receive the highest compensation. Pay is lowest in South America, at a median of $10,000.
Fermilab median employee salary by region (USD)
| Region | Median Salary |
|---|---|
| North America | $104,000 |
| Western Europe | $102,000 |
| Northern Europe | $65,000 |
| Southern Europe | $53,000 |
| South America | $10,000 |
Unlock salary by role, level, and city — and compare to Fermilab's industry peers.
Unlock Salary DataFermilab Job Openings and Hiring Trends (2023-2026)
- Fermilab had 135 active job postings in 2026, a 24.1% increase (+38) from 2025.
- Fermilab had 97 active job postings in 2025, a 47.1% increase (+37) from 2024.
- Fermilab had 60 active job postings in 2024, a 99.6% decline (-119) from 2023.
- Fermilab had 179 active job postings in 2023, a 21.7% increase from 2022.
- Hiring velocity in 2026: 62 new roles/month, up from 47 in 2025 and 54 in 2024.
Fermilab's active job postings rose 24.1% in 2026 to 135, with new postings per month cooling from 114 in 2023 to 62 in 2026.
Track new postings per month, role-level demand, and hiring velocity vs. peers.
Unlock Hiring DataFermilab Employee Sentiment (2026)
Revelio Labs tracks employee sentiment across Fermilab's workforce based on public professional data. Overall sentiment is neutral and has improved year over year in 2026.
Overall
Unlock the full sentiment breakdown by department, tenure, and trend over time.
Unlock SentimentSimilar Companies
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Frequently Asked Questions About Fermilab
- How fast is Fermilab growing?
- In 2026, Fermilab's headcount shrank 1.3% to 2,624 employees, down from 2,651 in 2025.
- See the full headcount history
- Where are Fermilab employees located?
- Most Fermilab employees are based in North America (97.8% of headcount), followed by Western Europe and East Asia.
- Explore where the workforce is based
- What is the average salary at Fermilab?
- The average employee salary at Fermilab is approximately $104k per year.
- Analyze the salary distribution
- How many new job postings does Fermilab open per year?
- In Q1 2026, Fermilab opened 187 new job postings. In 2025, Fermilab opened 567 new job postings — about 47 per month.
- Track hiring trends by role
- When was Fermilab founded and where is it headquartered?
- Fermilab was founded in 1967 and is headquartered in Batavia, Illinois.
- Compare Fermilab to industry peers
Speak with a workforce expert about Fermilab.
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