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Eisai Overview

Eisai Co., Ltd. is a Japanese pharmaceutical company headquartered in Tokyo, Japan. It has some 10,000 employees, among them about 1,500 in research. Eisai is listed on the Tokyo Stock Exchange and is a member of the Topix 100 and Nikkei 225 stock indices.
The staff at Eisai come from unusually diverse demographic backgrounds. The company is 47.0% female and 42.0% ethnic minorities. Despite its diversity in other areas, Eisai employees are noticeably lacking in political diversity. It has an unusually high proportion of employees who are members of the Democratic Party, at 73.0%. Employees seem to enjoy working in an otherwise diverse workplace that is dominated by members of the Democratic Party. Eisai has great employee retention with staff members usually staying with the company for 5.2 years. The average employee at Eisai makes $88,087 per year. In comparison, some of its highest paying competitors, like Arbor Pharmaceuticals, Novartis, and Purdue Pharma L.P., pay $101,804, $97,022, and $95,163, respectively.
Eisai is an industry leader with 10,419 employees and an annual revenue of $5.8B that is headquartered in New Jersey.

The Organization’s Mission

We are fueled by our human health care (hhc) mission, we're an inspired team of innovators relentlessly pursuing ways to improve the lives of patients and their families.







Founded in



Woodcliff Lake, NJ


Organization Type


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The Team At Eisai

Key People
  • Haruo Naito (ceo)

What do people say about Eisai

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Eisai Rankings

Eisai is ranked #44 on the Best Pharmaceutical Companies to Work For in America list. Zippia's Best Places to Work lists provide unbiased, data-based evaluations of companies. Rankings are based on government and proprietary data on salaries, company financial health, and employee diversity.

Read more about how we rank companies.

Eisai Salaries

How much does Eisai pay?
The national average salary for an Eisai employee in the United States is $88,087 per year. Employees in the top 10 percent can make over $125,000 per year, while employees at the bottom 10 percent earn less than $61,000 per year.
Salary Score
Average Employee Earnings

Eisai Salaries By Job Title

While Eisai employees earn an average yearly salary of $88,087, different roles can command different wages. Some of the job titles with high salaries at Eisai are associate director of biostatistics, web developer, field trainer, and build-release engineer. A typical associate director of biostatistics salary at Eisai is $139,638 per year. Some of the other roles at Eisai are data entry clerk and administrative assistant. A worker with the title data entry clerk at Eisai earns an average salary of $35,382 per year.
Job Title
Average Salarydesc
Associate Director Of Biostatistics
Salary Range122k - 159k$140k$139,638
Web Developer
Salary Range104k - 115k$110k$109,511
Field Trainer
Salary Range98k - 109k$103k$103,469
Build-Release Engineer
Salary Range94k - 110k$102k$102,111
Sap-Sd Consultant
Salary Range91k - 114k$102k$102,006
Senior Programmer
Salary Range92k - 106k$99k$99,056
Specialty Representative
Salary Range95k - 102k$99k$98,960
Principal Research Economist
Salary Range83k - 113k$97k$97,296
Salary Range86k - 108k$97k$96,647
Clinical Data Manager
Salary Range87k - 103k$95k$95,363

Eisai Careers

On average, employees at Eisai stay with the company for 5.2 years. Employees most commonly join Eisai after leaving Novartis. When they leave Eisai, they most frequently get their next job at Novartis.

Average Length of Employment

5.2 years

Top Employers Before Eisai

14.6 %
11.5 %
10.3 %

Top Employers After Eisai

12.2 %
11.9 %
6.6 %

Eisai Employee Demographics

Diversity Score
We calculated the diversity score of companies by measuring multiple factors, including the ethnic background, gender identity, and language skills of their workforce.

Eisai Employees Education

Of the 10,419 employees at Eisai, 10.4% attended Florida State University. Employees at Eisai most frequently majored in Business, and most employees’ highest level of education is a Bachelors.

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Eisai Employee Political Affiliation

Eisai employees are most likely to be members of the Democratic Party. The largest donation made to a political party by an Eisai employee was by Jeffrey Liebman. Jeffrey Liebman donated $10,000 to the Democratic Party.

Employee Political Donations

NameascdescJob TitleascdescPartyascdescDonationascdesc
Jeffrey LiebmanMedical Writer
Jeffrey Liebman
Medical Writer
Medical Writer
Democratic Party
Democratic Party
$10,000Democratic Party
Douglas SnyderAttorney
Douglas Snyder
Democratic Party
Democratic Party
$4,000Democratic Party
Allen WaxmanAttorney
Allen Waxman
Democratic Party
Democratic Party
$3,000Democratic Party
Naomi de SilvaLawyer
Naomi de Silva
Democratic Party
Democratic Party
$3,000Democratic Party
Nicholas ChisholmScientist
Nicholas Chisholm
Democratic Party
Democratic Party
$2,800Democratic Party
Elizabeth SomersBiotechnology
Elizabeth Somers
Republican Party
Republican Party
$2,206Republican Party
Sandra BaileyQuality
Sandra Bailey
Democratic Party
Democratic Party
$2,000Democratic Party
YI MoMedical Director
Medical Director
Medical Director
Democratic Party
Democratic Party
$2,000Democratic Party
Marc LamphierScientist
Marc Lamphier
Democratic Party
Democratic Party
$1,350Democratic Party
Saad AnbariProgrammer
Saad Anbari
Democratic Party
Democratic Party
$1,000Democratic Party
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Eisai Employment Videos

Eisai Financial Performance

Performance Score
We calculated the performance score of companies by measuring multiple factors, including revenue, longevity, and stock market performance.


> $1B

Founded in


Organization type


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Eisai Competitors

Based on our research, similar companies to Eisai are Arbor Pharmaceuticals, Novartis, and Purdue Pharma L.P. The wages at Arbor Pharmaceuticals average higher than the other similar companies, where the median salary is $101,804 per year. The employees at Novartis earn an average yearly salary of $97,022 per year, and the salaries at Purdue Pharma L.P. average $95,163 per year.
Average Salarydesc

Arbor Pharmaceuticals

Salary Range88k - 116k$102k$101,804
Salary Range82k - 114k$97k$97,022
Purdue Pharma L.P.
Salary Range77k - 117k$95k$95,163
Sanofi US
Salary Range80k - 112k$95k$95,099
Takeda Pharmaceuticals U.S.A
Salary Range81k - 109k$95k$94,521


Salary Range77k - 114k$94k$94,337
Salary Range76k - 115k$94k$94,157
Daiichi Sankyo
Salary Range80k - 110k$94k$94,031

Organon Pharmaceuticals USA

Salary Range78k - 105k$91k$90,788
Endo International plc
Salary Range73k - 109k$90k$89,840

Frequently Asked Questions about Eisai

When was Eisai founded?

Eisai was founded in 1941.

How many Employees does Eisai have?

Eisai has 10,419 employees.

How much money does Eisai make?

Eisai generates $5.8B in revenue.

What industry is Eisai in?

Eisai is in the pharmaceutical industry.

What is Eisai's mission?

Eisai's mission statement is "We are fueled by our human health care (hhc) mission, we're an inspired team of innovators relentlessly pursuing ways to improve the lives of patients and their families."

What type of company is Eisai?

Eisai is a public company.

Who are Eisai's competitors?

Eisai competitors include Takeda Pharmaceuticals U.S.A, Eli Lilly and Company, Endo International plc, Abbott Laboratories, Purdue Pharma L.P., Organon Pharmaceuticals USA, Allergan, Pfizer, inVentiv Health, Upsher-Smith Laboratories, MedPointe Pharmaceuticals, Forest Pharmaceuticals, Daiichi Sankyo, Pharmacia, Aptalis Pharma US, Novartis, Sanofi US, Depomed, Ferndale Laboratories, Arbor Pharmaceuticals.

Who works at Eisai?

Haruo Naito (ceo)

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Updated July 8, 2021

Zippia gives an in-depth look into the details of Eisai, including salaries, political affiliations, employee data, and more, in order to inform job seekers about Eisai. The employee data is based on information from people who have self-reported their past or current employments at Eisai. While we have made attempts to ensure that the information displayed are correct, Zippia is not responsible for any errors or omissions, or for the results obtained from the use of this information. The data presented on this page does not represent the view of Eisai and its employees or that of Zippia.

Eisai may also be known as or be related to EISAI INC, Eisai, Eisai Co., Ltd., Eisai Inc, Eisai Inc. and Eisai US.