How many employees work at Eisai?
Eisai Co., Ltd. (4523) has approximately 10,558 total employees worldwide as of March 2026, according to Revelio Labs workforce intelligence data. Eisai’s total headcount has declined 5.3% from 11,150 employees in 2023 to 10,558 in 2026.
Is Eisai hiring right now?
Yes, Eisai is actively hiring. Eisai had 471 active job postings in 2026, a 68.8% increase from 2025 — see job openings & hiring trends.
About Eisai’s Workforce
Eisai Co., Ltd. (4523) is a Pharmaceuticals company that employs 10,558 people worldwide as of March 2026. It is the 9th-largest by headcount among its peers. Founded in 1941, the company is headquartered in Tokyo, Japan and trades on the Tokyo Stock Exchange.
Eisai's workforce has declined 5.3% from 2023 to 2026, down 1.0% year over year in 2026. It fell to a low of 10,558 in 2026 Q1 before recovering. Its workforce is concentrated most in East Asia (34.3%), followed by North America (28.0%) and South Asia (13.5%).
Eisai's functional groups are Finance and Operations (42.5%), Engineering (30.1%), and Sales and Marketing (27.4%). The average salary is $81,024, ranging from a median of $145,000 in North America to $9,000 in South Asia, down 1.7% year over year in 2026.
Eisai's active job postings rose 68.8% in 2026 to 471, with new postings per month cooling from 319 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
- 1941
- Industry
- Pharmaceuticals
- Employees
- 10,558
- YoY
- -1.0% (-347)
As of March 2026
Eisai workforce metrics
Unlock hiring rate, attrition rate, and 12 additional workforce metrics for Eisai. Compare to peers, export the dataset, and access the full quarterly history.
Unlock MetricsEisai Annual Employee Count (2023-2026)
- Eisai had 10,558 employees in 2026, a 1.0% decline (-347) from 2025.
- Eisai had 10,651 employees in 2025, a 1.0% decline (-355) from 2024.
- Eisai had 11,006 employees in 2024, a 1.1% decline (-176) from 2023.
- Eisai had 11,182 employees in 2023, a 0.3% increase (+122) from 2022.
Eisai's total workforce has declined from 11,150 employees in 2023 to 10,558 in 2026. Eisai's headcount peaked at 11,207 in 2024.
Eisai Co., Ltd. quarterly employee count
| Year | Qtr | Employees | YoY Change | YoY % |
|---|---|---|---|---|
| 2026 | Q1 | 10,558 | -347 | -1.0% |
| 2025 | Q4 | 10,651 | -355 | -1.0% |
| 2025 | Q3 | 10,640 | -458 | -1.7% |
| 2025 | Q2 | 10,777 | -377 | -1.6% |
| 2025 | Q1 | 10,905 | -302 | -1.8% |
| 2024 | Q4 | 11,006 | -176 | -1.1% |
| 2024 | Q3 | 11,098 | -70 | -0.7% |
| 2024 | Q2 | 11,154 | +4 | -0.7% |
| 2024 | Q1 | 11,207 | +148 | +0.3% |
| 2023 | Q4 | 11,182 | +122 | +0.3% |
| 2023 | Q3 | 11,168 | +214 | +0.9% |
| 2023 | Q2 | 11,150 | +68 | +0.9% |
See Eisai's complete headcount history, including quarterly breakdowns.
Get the DataEisai Employee Count by Region (2026)
East Asia accounts for the largest share of Eisai's global workforce with approximately 34% of total employees, followed by North America and South Asia.
Eisai employees by region
| Region | Employees | % of Total |
|---|---|---|
| East Asia | 3,589 | 34.3% |
| North America | 2,936 | 28.0% |
| South Asia | 1,416 | 13.5% |
| Northern Europe | 783 | 7.5% |
| Southeast Asia | 765 | 7.3% |
| Western Europe | 404 | 3.9% |
| Southern Europe | 260 | 2.5% |
| Arab States | 103 | 1.0% |
| Eastern Europe | 63 | 0.6% |
| Pacific Islands | 45 | 0.4% |
Drill into city-level data, hiring trends by region, and historic geographic shifts.
Unlock Geographic DataEisai Employee Count by Department (2026)
Eisai's employee groups are Finance and Operations (42.5%), Engineering (30.1%), and Sales and Marketing (27.4%).
Eisai employees by department
| Department | Employees | % of Total |
|---|---|---|
| Finance and Operations | 4,389 | 42.5% |
| Engineering | 3,113 | 30.1% |
| Sales and Marketing | 2,830 | 27.4% |
Compare Eisai's department mix to industry peers.
See Full DataEisai Employee Salary by Region (2026)
Eisai's average employee salary is $81,024 globally. Employees in North America receive the highest compensation, with median pay approximately 1.8x the global average. Pay is lowest in South Asia, at a median of $9,000.
Eisai median employee salary by region (USD)
| Region | Median Salary |
|---|---|
| North America | $145,000 |
| Central and Western Asia | $111,000 |
| Western Europe | $105,000 |
| Northern Europe | $91,000 |
| Pacific Islands | $76,000 |
| Southern Europe | $60,000 |
| Arab States | $51,000 |
| East Asia | $41,000 |
| Eastern Europe | $40,000 |
| Central America and the Caribbean | $27,000 |
| Sub-Saharan Africa | $23,000 |
| South America | $22,000 |
| North Africa | $14,000 |
| Southeast Asia | $10,000 |
| South Asia | $9,000 |
Unlock salary by role, level, and city — and compare to Eisai's industry peers.
Unlock Salary DataEisai Job Openings and Hiring Trends (2023-2026)
- Eisai had 471 active job postings in 2026, a 68.8% increase (+152) from 2025.
- Eisai had 319 active job postings in 2025, a 14.1% increase (+42) from 2024.
- Eisai had 277 active job postings in 2024, a 13.5% increase (+35) from 2023.
- Eisai had 242 active job postings in 2023, a 32.2% decline from 2022.
- Hiring velocity in 2026: 216 new roles/month, up from 124 in 2025 and 163 in 2024.
Eisai's active job postings rose 68.8% in 2026 to 471, with new postings per month cooling from 319 in 2023 to 216 in 2026.
Track new postings per month, role-level demand, and hiring velocity vs. peers.
Unlock Hiring DataEisai 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
Unlock the full sentiment breakdown by department, tenure, and trend over time.
Unlock SentimentSimilar Companies
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Frequently Asked Questions About Eisai
- How fast is Eisai growing?
- In 2026, Eisai's headcount shrank 1.0% to 10,558 employees, down from 10,905 in 2025.
- See the full headcount history
- Where are Eisai employees located?
- Most Eisai employees are based in East Asia (34.3% of headcount), followed by North America and South Asia.
- Explore where the workforce is based
- What is the average salary at Eisai?
- The average employee salary at Eisai is approximately $81k per year.
- Analyze the salary distribution
- How many new job postings does Eisai open per year?
- In Q1 2026, Eisai opened 647 new job postings. In 2025, Eisai opened 1,484 new job postings — about 124 per month.
- Track hiring trends by role
- When was Eisai founded and where is it headquartered?
- Eisai was founded in 1941 and is headquartered in Tokyo, Japan.
- Compare Eisai to industry peers
Speak with a workforce expert about Eisai.
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