Company Insights
Published on
April 22, 2026

How Many People Work at Gilead Sciences? Headcount and Employee Trends

Total Employees
17600
7.2% from last year
0
New Hires (YTD)
128
5% of total workforce
Departments
19
650 in Engineering
Locations
456
5,012 in New York, NY
  • Gilead Sciences, headquartered in Foster City, California, is a leading biopharmaceutical company known for its innovative treatments in HIV and oncology, particularly with its recent focus on CAR-T therapies for cancer.
  • In 2026, Gilead made significant moves by acquiring Arcellx for $7.8 billion to gain full control of the anito-cel CAR-T therapy and Tubulis GmbH for $3.15 billion, marking a $16 billion investment in just 60 days.
  • Key partnerships include Gilead's collaboration with Kite, which is focused on developing the anito-cel therapy for multiple myeloma, enhancing their oncology pipeline.
  • Gilead's ideal buyers are healthcare providers and institutions looking for advanced cancer therapies, as the company addresses the critical need for effective treatments in relapsed and refractory multiple myeloma.

Gilead Sciences Headcount Breakdown by Department

Gilead Sciences employs a diverse workforce across 19 departments, with Operations leading at 1,184 employees, followed by the Executive department with 972. Information Technology also plays a significant role, housing 838 employees. The balance across departments indicates a strong emphasis on operational efficiency and technological support, essential for a pharmaceutical company. Other departments, such as Community and Social Services and Engineering, further contribute to the company's holistic approach to healthcare solutions.

Operations
1184
Executive
972
Information Technology
838
Community And Social Services
653
Engineering
525
Health Services
461
Finance
230
Legal
205
Sales
203
Other
2578

Gilead Sciences Employees by Location

The workforce is primarily concentrated in California, with San Mateo housing the largest group at 1,941 employees. Other notable locations include San Dimas and South San Francisco, with 209 and 127 employees, respectively. The 'Other' category accounts for a significant portion of the workforce, indicating a distributed presence across various regions. This geographic distribution underscores Gilead's commitment to accessibility and local engagement in its operations.

San Mateo, CA
1941
San Dimas, CA
209
South San Francisco, CA
127
San Francisco, CA
110
New York, NY
84
Seattle, WA
79
Oceanside, CA
64
Fremont, CA
62
San Diego, CA
29
Other
4481
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