How many employees work at Mevion Medical Systems?

Mevion Medical Systems, Inc. has approximately 289 total employees worldwide as of March 2026, according to Revelio Labs workforce intelligence data. Mevion Medical Systems’s total headcount has grown 4.0% from 278 employees in 2023 to 289 in 2026.

Data source: Revelio LabsCoverage: Global workforce, 20232026Published August 2026

Is Mevion Medical Systems hiring right now?

Yes, Mevion Medical Systems is actively hiring. Mevion Medical Systems had 43 active job postings in 2026, a 68.8% increase from 2025 see job openings & hiring trends.

About Mevion Medical Systems’s Workforce

Mevion Medical Systems, Inc. is a leading provider of proton therapy systems for use in radiation treatment for cancer patients. Mevion is privately held and based in Littleton, Massachusetts, with international offices in the United Kingdom and Japan and a joint venture in China. For more information, please visit www.mevion.com. About the MEVION S250 Series: The MEVION S250 Series is elegantly designed to deliver high-powered, efficient proton therapy treatments. Built upon the world’s only gantry-mounted proton accelerator and benefitting from Mevion’s patented direct beam technology, the MEVION S250 Series delivers on the therapeutic promise of proton therapy while enhancing beam quality, stability and uptime. The result is reduced system complexity, higher reliability and throughput, and lower capital and operating costs—making the MEVION S250 Series a compelling, financially viable solution for all cancer centers. The Series is comprised of: • MEVION S250, offering highly stable, next-generation volumetric delivery capabilities • MEVION S250i with HYPERSCAN technology, overcoming pencil beam scanning uncertainties by delivering robust Intensity Modulated Proton Therapy treatment at hyper-speed • MEVION S250mx, making proton therapy fully scalable, with two, three and four room designs that are inherently redundant and guarantee 100 percent facility uptime

Sourced from Revelio Labs workforce data.

Headquarters
Town of Littleton, Massachusetts
Founded
2004
Industry
Healthcare and Wellness Services
Employees
289
YoY
+4.3% (+24)

Unlock hiring rate, attrition rate, and 12 additional workforce metrics for Mevion Medical Systems. Compare to peers, export the dataset, and access the full quarterly history.

Unlock Metrics

Mevion Medical Systems Annual Employee Count (2023-2026)

Interactive chart of Mevion Medical Systems annual worldwide employee count from 2023 to 2026.
  • Mevion Medical Systems had 289 employees in 2026, a 4.3% increase (+24) from 2025.
  • Mevion Medical Systems had 281 employees in 2025, a 3.5% increase (+16) from 2024.
  • Mevion Medical Systems had 265 employees in 2024, a 1.0% decline (-2) from 2023.
  • Mevion Medical Systems had 267 employees in 2023, a 2.9% decline (-10) from 2022.

Mevion Medical Systems, Inc. quarterly employee count

YearQtrEmployeesYoY ChangeYoY %
2026Q1289+24+4.3%
2025Q4281+16+3.5%
2025Q3279+22+4.3%
2025Q2284+22+5.0%
2025Q1265+2+0.9%
2024Q4265-2-1.0%
2024Q3257-18-4.8%
2024Q2262-16-5.9%
2024Q1263-8-3.1%
2023Q4267-10-2.9%
2023Q3275+2-0.9%
2023Q2278-2-2.4%

See Mevion Medical Systems's complete headcount history, including quarterly breakdowns.

Get the Data

Mevion Medical Systems Employee Count by Region (2026)

Mevion Medical Systems employees by region

RegionEmployees% of Total
North America21976.0%
East Asia5218.1%
Western Europe51.9%
Southeast Asia31.2%
South Asia20.8%
Northern Europe20.8%
Arab States20.7%
Central and Western Asia10.3%
Central America and the Caribbean00.2%

Drill into city-level data, hiring trends by region, and historic geographic shifts.

Unlock Geographic Data

Mevion Medical Systems Employee Count by Department (2026)

Mevion Medical Systems employees by department

DepartmentEmployees% of Total
Finance and Operations15654.7%
Engineering7727.1%
Sales and Marketing5218.2%

Compare Mevion Medical Systems's department mix to industry peers.

See Full Data

Mevion Medical Systems Employee Salary by Region (2026)

Mevion Medical Systems median employee salary by region (USD)

RegionMedian Salary
North America$109,000
Western Europe$64,000
East Asia$49,000
Southeast Asia$15,000

Unlock salary by role, level, and city — and compare to Mevion Medical Systems's industry peers.

Unlock Salary Data

Mevion Medical Systems Job Openings and Hiring Trends (2023-2026)

Interactive chart of Mevion Medical Systems annual active job postings from 2023 to 2026.
  • Mevion Medical Systems had 43 active job postings in 2026, a 68.8% increase (+3) from 2025.
  • Mevion Medical Systems had 40 active job postings in 2025, a 90.9% increase (+25) from 2024.
  • Mevion Medical Systems had 15 active job postings in 2024, a 133.3% increase (+12) from 2023.
  • Mevion Medical Systems had 3 active job postings in 2023, a 140.0% decline from 2022.
  • Hiring velocity in 2026: 31 new roles/month, up from 15 in 2025 and 4 in 2024.

Track new postings per month, role-level demand, and hiring velocity vs. peers.

Unlock Hiring Data

Mevion Medical Systems Employee Sentiment (2026)

Overall

NegativePositive

Unlock the full sentiment breakdown by department, tenure, and trend over time.

Unlock Sentiment

Similar Companies

Frequently Asked Questions About Mevion Medical Systems

How fast is Mevion Medical Systems growing?
In 2026, Mevion Medical Systems's headcount grew 4.3% to 289 employees, up from 265 in 2025.
See the full headcount history
Where are Mevion Medical Systems employees located?
Most Mevion Medical Systems employees are based in North America (76.0% of headcount), followed by East Asia and Western Europe.
Explore where the workforce is based
What is the average salary at Mevion Medical Systems?
The average employee salary at Mevion Medical Systems is approximately $113.1k per year.
Analyze the salary distribution
How many new job postings does Mevion Medical Systems open per year?
In Q1 2026, Mevion Medical Systems opened 94 new job postings. In 2025, Mevion Medical Systems opened 182 new job postings — about 15 per month.
Track hiring trends by role
When was Mevion Medical Systems founded and where is it headquartered?
Mevion Medical Systems was founded in 2004 and is headquartered in Town of Littleton, Massachusetts.
Compare Mevion Medical Systems to industry peers

Speak with a workforce expert about Mevion Medical Systems.

Book a Demo

See something that doesn't look right? Reach out and our team will review it.