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Working At Sei

Zippia Score 4.6

Sei overview

The staff at Sei come from unusually diverse demographic backgrounds. The company is 29.2% female and 37.4% ethnic minorities. Sei employees are more likely to be members of the Republican Party than the Democratic Party, with 62.3% of employees identifying as members of the Republican Party. But those numbers could change quickly because the turnover rate at Sei is relatively high. Employees at Sei stay with the company for an average of 2.7 years before leaving. The average employee at Sei makes $71,530 per year. Pay at Sei is significantly lower than some of its highest paying competitors, like Populus Group, McKinsey & Company, and The Standard, which pay $108,458, $104,149, and $84,594, respectively.
Based in the United States, Sei is a key player in the professional industry with 3,250 employees and an annual revenue of $750.0M.


Professional Services





Founded in






Organization Type


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The team at Sei

Key People
  • Diana Seiler (CEO)

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Sei Salaries

How much does Sei pay?
The national average salary for a Sei employee in the United States is $71,530 per year. Employees in the top 10 percent can make over $126,000 per year, while employees at the bottom 10 percent earn less than $40,000 per year.
Salary Score
Average Employee Earnings

Sei Salaries By Job Title

The average employee at Sei earns a yearly salary of $71,530 per year, but different jobs can earn drastically different salaries. Some of the job titles with high salaries at Sei are Development Manager, Investment Advisor, Principal Consultant, and Business Leader. A worker with the title Development Manager salary at Sei can earn an average yearly salary of $134,221. Some of the other roles at Sei are Security Guard and Security Officer. A worker with the title Security Guard at Sei earns an average salary of $28,952 per year.

Sei careers

On average, employees at Sei stay with the company for 2.7 years. Employees most commonly join Sei after leaving Vanguard Group. When they leave Sei, they most frequently get their next job at JPMorgan Chase.

Average Length of Employment
The Standard3.5 years
FIS2.9 years


2.7 years
Abacus1.9 years
Top Employers Before Sei
Walmart7.6 %
Citi7.0 %
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Top Employers After Sei
AT&T6.0 %
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Sei Financial Performance

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


$100M - $1B

Founded in


Organization type


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Sei Subsidiaries

Subsidiaries to Sei include Sumitomo Electric Wiring Systems and JUDD WIRE. Employees at the parent company, Sei, earn $71,530. In comparison, the salaries at Sumitomo Electric Wiring Systems and JUDD WIRE are $68,955 and $45,927.

Sei Competitors

Some of the competitors of Sei are Populus Group, McKinsey & Company Inc., and The Standard. The average salaries at Populus Group rank the highest, with their employees earning an average salary of $108,458 per year. The employees at McKinsey & Company Inc. earn an average yearly salary of $104,149 per year, and the salaries at The Standard average $84,594 per year.

Frequently Asked Questions about Sei

How many Employees does Sei have?

Sei has 3,250 employees.

How much money does Sei make?

Sei generates $750.0M in revenue.

What industry is Sei in?

Sei is in the professional services industry.

What type of company is Sei?

Sei is a private company.

Who are Sei's competitors?

Sei competitors include The Standard, Abacus, FIS, Axiom, BLUELINE ADVANCED SERV, Sutherland Global Services Inc., Corporate Services, ACS Inc., TSR Inc., DCS, Kforce, CCI, ALPS, Spherion, McKinsey & Company Inc., Stream Realty Partners, Howroyd-Wright Employment Agency Inc., BCS, Criteria, Populus Group.

Who works at Sei?

Diana Seiler (CEO)

What is Sei's website?

You can find the Sei website at

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You can find out what it is like to work at Sei, also known as SEI, Sei and Sei Corp Inc.

Zippia gives an in-depth look into the details of Sei, including salaries, political affiliations, employee data, and more, in order to inform job seekers about Sei. The employee data is based on information from people who have self-reported their past or current employments at Sei. 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 Sei and its employees or that of Zippia.