Companies
Thermo Fisher Scientific
Medical devicesWaltham, MassachusettsTMOAbout 125,000 employees
More about Thermo Fisher Scientific
Supplier of lab instruments, reagents, consumables, diagnostics and contract drug development and manufacturing services for science and healthcare customers
Revenue
$44.6B
Fiscal 2025, up about 4%
Employees
About 125,000
As of December 2025
Stock
TMO
New York Stock Exchange
Headquarters
Waltham, Massachusetts
CEO
Marc Casper
Since 2009
Main businessesLife Sciences Solutions, Analytical Instruments, Specialty Diagnostics, Laboratory Products and Biopharma Services
Current strategyExecuting its growth strategy and PPI Business System productivity program while deepening partnerships with pharma and biotech customers
Recent workforce changesClosing its Franklin, Massachusetts site by end of 2026, with up to 80 layoffs announced in February 2026
CompetitorsDanaher, Agilent Technologies, Merck KGaA
Related companiesDanaherAgilent TechnologiesRevvity
Checked October 11, 2026 · Sources: sec.gov, sec.gov (2), fiercepharma.com
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