SEI Investments Co (NASDAQ: SEIC) is a financial technology and asset management company that provides technology outsourcing, investment operations, and asset management solutions to financial services firms. It earns money through two primary streams: technology and operations outsourcing fees (approximately 57% of FY2025 revenue) and asset management fees (approximately 38% of FY2025 revenue), with the remainder from professional services and ancillary offerings. SEI operates across four client-oriented segments: Investment Managers, Private Banks, Investment Advisors, and Institutional Investors. Headquartered in Oaks, Pennsylvania, SEI supports clients from service centers in the United States, United Kingdom, Ireland, Canada, continental Europe, India, and South Africa, with over 5,000 employees as of the FY2025 10-K filed 2026-02-23. The company manages, advises, or administers approximately $1.9 trillion in assets (FY2025) and counts 8 of the top 20 U.S. banks and 43 of the top 100 investment managers worldwide among its clients. Switching costs embedded in deep operational outsourcing relationships provide a structural retention advantage.

Revenue model

Technology and operations outsourcing fees (~57% of FY2025 revenue) and asset management fees (~38% of FY2025 revenue), with professional services and ancillary services making up the remainder. Fee-based recurring revenue tied to assets under management and platform usage.

Products and services

Financial technology platforms, trust-based custody, investment operations outsourcing, and investment management solutions delivered across four segments: Investment Managers, Private Banks, Investment Advisors, and Institutional Investors.

Customers and end markets

Financial institutions including banks (8 of top 20 U.S. banks as of FY2025 10-K), investment managers (43 of top 100 worldwide as of FY2025 10-K), private banks, registered investment advisors, and institutional investors such as pension funds and endowments.

Value-chain role

Middle and back-office outsourcing provider and investment manager for financial services firms. Sits between end-investors and financial institutions by handling technology infrastructure, custody, operations, and asset management.

Geographic exposure

Primary operations in the United States, with service centers in the United Kingdom, Ireland, Canada, continental Europe, India, and South Africa (as of FY2025 10-K filed 2026-02-23).

Source: SEC 10-K, filed 2026-02-23

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