Tokyo Stock Exchange: 4523

How many employees does Eisai have?

Eisai Co., Ltd. (4523) has approximately 10,875 total employees worldwide as of June 2026, according to Revelio Labs workforce intelligence data. Eisai’s total headcount has declined 8.0% from 11,816 employees in 2023 to 10,875 in 2026.

Data source: Revelio LabsCoverage: Global workforce, 2023–2026Published August 2026

Is Eisai hiring right now?

Yes, Eisai is actively hiring. Eisai had 330 active job postings in 2026, a 44.4% increase from 2025 — see job openings & hiring trends.

About Eisai’s Workforce

Eisai Co., Ltd. (4523) is a Pharmaceuticals company that employs 10,875 people worldwide as of June 2026. It is the 9th-largest by headcount among its peers. Founded in 1936, the company is headquartered in Tokyo, Japan and trades on the Tokyo Stock Exchange.

Eisai's workforce has declined 8.0% from 2023 to 2026, down 3.3% year over year in 2026. It fell to a low of 10,875 in 2026 Q2 before recovering. Its workforce is concentrated most in East Asia (35.2%), followed by North America (24.3%) and South Asia (14.6%).

Eisai's functional groups are Finance and Operations (43.5%), Engineering (29.3%), and Sales and Marketing (27.2%). The average salary is $78,878, ranging from a median of $150,000 in North America to $9,000 in South Asia, down 1.9% year over year in 2026.

Eisai's active job postings rose 44.4% in 2026 to 330, with new postings per month cooling from 311 in 2023 to 216 in 2026. Overall employee sentiment is neutral but improving.

Sourced from Revelio Labs workforce data.

Ticker
Tokyo Stock Exchange: 4523
Headquarters
Tokyo, Japan
Founded
1936
Industry
Pharmaceuticals
Employees
10,875
YoY
-3.3% (-367)

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Eisai Annual Employee Count (2023-2026)

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Interactive chart of Eisai annual worldwide employee count from 2023 to 2026.
  • Eisai had 10,875 employees in 2026, a 3.3% decline (-367) from 2025.
  • Eisai had 11,105 employees in 2025, a 3.7% decline (-431) from 2024.
  • Eisai had 11,536 employees in 2024, a 2.3% decline (-276) from 2023.
  • Eisai had 11,812 employees in 2023, a 0.9% increase (+103) from 2022.

Eisai's total workforce has declined from 11,816 employees in 2023 to 10,875 in 2026. Eisai's headcount peaked at 11,859 in 2024.

Eisai Co., Ltd. quarterly employee count

YearQtrEmployeesYoY ChangeYoY %
2026Q210,875-367-3.3%
2026Q110,935-474-4.2%
2025Q411,105-431-3.7%
2025Q311,075-601-5.1%
2025Q211,242-529-4.5%
2025Q111,409-450-3.8%
2024Q411,536-276-2.3%
2024Q311,676-140-1.2%
2024Q211,771-35-0.3%
2024Q111,859+178+1.5%
2023Q411,812+103+0.9%
2023Q311,816+249+2.2%

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Eisai Employee Count by Region (2026)

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East Asia accounts for the largest share of Eisai's global workforce with approximately 35% of total employees, followed by North America and South Asia.

Eisai employees by region

RegionEmployees% of Total
East Asia3,79735.2%
North America2,62124.3%
South Asia1,57714.6%
Northern Europe9408.7%
Southeast Asia7456.9%
Western Europe4844.5%
Southern Europe2972.8%
Arab States1081.0%
Eastern Europe720.7%
Pacific Islands490.5%

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Eisai Employee Count by Department (2026)

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Eisai's employee groups are Finance and Operations (43.5%), Engineering (29.3%), and Sales and Marketing (27.2%).

Eisai employees by department

DepartmentEmployees% of Total
Finance and Operations4,69643.5%
Engineering3,16329.3%
Sales and Marketing2,94127.2%

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Eisai Employee Salary by Region (2026)

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Eisai's average employee salary is $78,878 globally. Employees in North America receive the highest compensation, with median pay approximately 1.9x the global average. Pay is lowest in South Asia, at a median of $9,000.

Eisai median employee salary by region (USD)

RegionMedian Salary
North America$150,000
Central and Western Asia$145,000
Western Europe$100,000
Northern Europe$89,000
Pacific Islands$76,000
Arab States$62,000
Southern Europe$61,000
East Asia$41,000
Eastern Europe$39,000
South America$33,000
North Africa$27,000
Sub-Saharan Africa$23,000
Central America and the Caribbean$22,000
Southeast Asia$11,000
South Asia$9,000

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Eisai Job Openings and Hiring Trends (2023-2026)

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Interactive chart of Eisai annual active job postings from 2023 to 2026.
  • Eisai had 330 active job postings in 2026, a 44.4% increase (-11) from 2025.
  • Eisai had 341 active job postings in 2025, a 10.8% increase (+35) from 2024.
  • Eisai had 306 active job postings in 2024, a 20.1% increase (+56) from 2023.
  • Eisai had 250 active job postings in 2023, a 33.9% decline from 2022.
  • Hiring velocity in 2026: 216 new roles/month, up from 141 in 2025 and 173 in 2024.

Eisai's active job postings rose 44.4% in 2026 to 330, with new postings per month cooling from 311 in 2023 to 216 in 2026.

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Eisai Employee Sentiment (2026)

Revelio Labs tracks employee sentiment across Eisai's workforce based on public professional data. Overall sentiment is neutral and has improved year over year in 2026.

Overall

NegativePositive

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Frequently Asked Questions About Eisai

How fast is Eisai growing?
In 2026, Eisai's headcount shrank 3.3% to 10,875 employees, down from 11,242 in 2025.
See the full headcount history
Where are Eisai employees located?
Most Eisai employees are based in East Asia (35.2% of headcount), followed by North America and South Asia.
Explore where the workforce is based
How many people work at Eisai in East Asia?
About 3,797 people work at Eisai in East Asia, its largest region.
See headcount by region
What is the average salary at Eisai?
The average employee salary at Eisai is approximately $78.9k per year.
Analyze the salary distribution
How many new job postings does Eisai open per year?
Through Q2 2026, Eisai opened 1,294 new job postings. In 2025, Eisai opened 1,688 new job postings — about 141 per month.
Track hiring trends by role
When was Eisai founded and where is it headquartered?
Eisai was founded in 1936 and is headquartered in Tokyo, Japan.
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