How many employees work at SEI Investments?
SEI Investments Co. has 5,173 employees, according to Revelio Labs workforce intelligence data. The YoY growth rate is 5.9%.
Data source: Revelio Labs Coverage: Global workforce Latest update: December 2025
About SEI Investments
SEI (NASDAQ:SEIC) delivers technology and investment solutions that connect the financial services industry. With capabilities across investment processing, operations, and asset management, SEI works with corporations, financial institutions and professionals, and ultra-high-net-worth families to solve problems, manage change, and help protect assets—for growth today and in the future. As of March 31, 2023, SEI manages, advises, or administers approximately $1.3 trillion in assets. For more information, visit seic.com. Additional disclosures: https://seic.com/social
As of December 2025
SEI Investments
workforce metrics
Headcount
5.2k
Avg. Salary
$99.3k
Tenure
5.1yr
Growth Rate
5.9%
Hiring Rate
Attrition Rate
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Employee Headcount
Interactive chart of SEI Investments annual worldwide employee count from 2023 to 2025.
- SEI Investments total number of employees in 2025 was 5,172, a 5.9% increase from 2024.
- SEI Investments total number of employees in 2024 was 4,877, a 0.2% increase from 2023.
- SEI Investments total number of employees in 2023 was 4,866, a 1.8% increase from 2022.
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Employee Geographic Breakdown
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Active Job Postings
Interactive chart of SEI Investments annual active job postings from 2023 to 2025.
- SEI Investments active job postings in 2025 was 129, a 5.3% decline from 2024.
- SEI Investments active job postings in 2024 was 136, a 40.0% decline from 2023.
- SEI Investments active job postings in 2023 was 204, a 55.1% decline from 2022.
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Employee Sentiment
Sentiment Topics
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