How many employees work at Eisai?
Eisai Co., Ltd. has 8,432 employees, according to Revelio Labs workforce intelligence data. The YoY growth rate is -4.7%.
Data source: Revelio Labs Coverage: Global workforce Latest update: December 2025
About Eisai
Eisai’s Corporate Concept is “to give first thought to patients and people in the daily living domain, and to increase the benefits that health care provides.” Under this Concept (also known as human health care (hhc) Concept), we aim to effectively achieve social good in the form of relieving anxiety over health and reducing health disparities. With a global network of R&D facilities, manufacturing sites and marketing subsidiaries, we strive to create and deliver innovative products to target diseases with high unmet medical needs, with a particular focus in our strategic areas of Neurology and Oncology. In addition, we demonstrate our commitment to the elimination of neglected tropical diseases (NTDs), which is a target (3.3) of the United Nations Sustainable Development Goals (SDGs), with working on various activities together with global partners.
As of December 2025
Eisai
workforce metrics
Headcount
8.4k
Avg. Salary
$93.7k
Tenure
5.2yr
Growth Rate
-4.7%
Hiring Rate
Attrition Rate
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Employee Headcount
Interactive chart of Eisai annual worldwide employee count from 2023 to 2025.
- Eisai total number of employees in 2025 was 8,428, a 4.7% decline from 2024.
- Eisai total number of employees in 2024 was 8,830, a 1.3% decline from 2023.
- Eisai total number of employees in 2023 was 8,949, a 2.4% increase from 2022.
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Employee Geographic Breakdown
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Active Job Postings
Interactive chart of Eisai annual active job postings from 2023 to 2025.
- Eisai active job postings in 2025 was 259, a 5.1% increase from 2024.
- Eisai active job postings in 2024 was 246, a 5.4% increase from 2023.
- Eisai active job postings in 2023 was 233, a 17.6% decline from 2022.
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Employee Sentiment
Sentiment Topics
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