Company Insights
Published on
April 22, 2026

How Many People Work at Thermo Fisher Scientific? Headcount and Employee Trends

Total Employees
125000
7.2% from last year
0
New Hires (YTD)
585
5% of total workforce
Departments
19
650 in Engineering
Locations
1528
5,012 in New York, NY
  • Thermo Fisher Scientific Inc., headquartered in Waltham, Massachusetts, is a global leader in scientific instrumentation and biopharma services, reporting $44.56 billion in revenue for 2025 with a 4% year-over-year growth.
  • In 2025, the company launched innovative products such as the Thermo Scientific™ Orbitrap™ Astral™ Zoom mass spectrometer, contributing to a fourth quarter revenue increase of 7% to $12.21 billion.
  • Thermo Fisher serves a diverse customer base including academic institutions and pharmaceutical companies, facing challenges from cuts in U.S. academic research funding that may impact future sales.
  • The ideal buyer for Thermo Fisher's products includes research institutions and biopharma companies looking for advanced scientific solutions, particularly as they navigate funding pressures and seek innovative technologies to enhance their research capabilities.

Thermo Fisher Scientific Headcount Breakdown by Department

Thermo Fisher Scientific's workforce is organized into 19 departments, with Operations being the largest at 7,645 employees, followed by Information Technology with 4,924 and Community and Social Services at 3,597. This diverse departmental structure indicates a strong emphasis on operational efficiency and technological support, essential for a company in the scientific equipment industry. The presence of significant headcounts in Sales and Engineering further reflects the company's focus on product development and market outreach.

Operations
7645
Information Technology
4924
Community And Social Services
3597
Sales
2891
Engineering
2264
Executive
2063
Finance
1851
Human Resources
974
Marketing
876
Other
13555

Thermo Fisher Scientific Employees by Location

The company's workforce is distributed across 1,528 locations, with the largest concentration in Waltham, MA, housing 3,207 employees. Other notable locations include Carlsbad, CA, with 878 employees, and San Diego, CA, with 686 employees. The substantial headcount categorized as 'Other' suggests a significant remote or distributed workforce, indicating Thermo Fisher's ability to operate effectively across various geographic regions while maintaining a centralized operational hub.

Waltham, MA
3207
Carlsbad, CA
878
San Diego, CA
686
Pittsburgh, PA
483
Wilmington, NC
316
Wilmington, MA
315
Hillsboro, OR
314
Grand Island, NY
295
Fremont, CA
290
Other
23183
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