[2] Through its subsidiaries and partnerships in which the company has significant interests, SEI manages, advises or administers $1 trillion in hedge funds, private equity, mutual funds and pooled or separately managed assets.

[3] SEI has corporate headquarters in Oaks, Pennsylvania with offices in Indianapolis, Toronto, London, Dublin, The Netherlands, Hong Kong, South Africa, India, Luxembourg and Dubai.

In the 1990s SEI launched a wealth management operating platform for independent, fee-based investment advisors.

[citation needed] In 1994, SEI was an early investor of LSV Asset Management and currently still holds a significant stake in the firm.

[6] In 2012 SEI was sued by investors in connection with the financial crimes committed by Allen Stanford.