SEI to Hold Investor Conference

Public Invited to Monitor Webcast

OAKS, PA -- (MARKET WIRE) -- 05/25/11 -- SEI Investments Company (NASDAQ: SEIC) will present a live webcast of its annual Investor Conference on Wednesday, June 1, 2011, 8:30 a.m. to approximately 1:00 p.m. (ET).

SEI's Investor Conference, attended by institutional investors and industry analysts, will feature presentations by SEI's top executives describing the company, its markets, and strategies for future growth.

The public is invited to view the presentation and listen to the webcast of the conference at www.seic.com/investors. The webcast may also be heard at www.earnings.com and numerous other financial services portals on the Internet. It will be available for replay shortly after the conference and will be archived for one year.

About SEI
SEI (NASDAQ: SEIC) is a leading global provider of investment processing, fund processing, and investment management business outsourcing solutions that help corporations, financial institutions, financial advisors, and ultra-high-net-worth families create and manage wealth. As of March 31, 2011, through its subsidiaries and partnerships in which the company has a significant interest, SEI manages or administers $429 billion in mutual fund and pooled assets or separately managed assets, including $179 billion in assets under management and $250 billion in client assets under administration. For more information, visit www.seic.com.

Investor Contact:
Murray Louis
SEI
+1 610 676-1932
mlouis@seic.com

Media Contact:
Dana Grosser
SEI
+1 610 676-2459
dgrosser@seic.com

Source: SEI

Released May 25, 2011