SEI INVESTMENTS CO

SEI Investments Company delivers financial technology, operational infrastructure, and asset management solutions that integrate investment advice, portfolio administration, and asset management functions. The firm operates across four primary business segments: Investment Managers, Private Banks, Investment Advisors, and Institutional Investors, alongside a segment dedicated to new business ventures. Its offerings include front-to-back office technology platforms, business process outsourcing, fund administration, custody, regulatory compliance, and customized investment strategies such as model portfolios, collective investment trusts, and exchange-traded funds. SEI serves a diverse client base comprising investment managers, private banks, registered investment advisors, broker-dealers, institutional investors, family offices, and individual high-net-worth clients.

The company is headquartered in Oaks, Pennsylvania. It employs over 5,000 workers across service centers and operational facilities situated in the United States, the United Kingdom, Ireland, Canada, continental Europe, India, and South Africa.

Summary of the business section of Sei Investments's latest annual report, written by StockData.

“Actually paid” adjusts reported pay for changes in the value of equity awards. Shareholder return assumes $100 invested at the start of the measurement period, as disclosed by the company.

“Our talented workforce is the key to our ability to serve our clients globally. At December 31, 2025, we had 4,997 full-time and 32 part-time employees.”