SEI South Africa Appoints Managing Director

JOHANNESBURG, Sept. 6, 2010 – SEI Investments (South Africa) Limited, a subsidiary of SEI Investments Company (NASDAQ:SEIC) (“SEI”), has appointed Giles Mokoka as Managing Director and head of its South African operation based in Johannesburg. Giles will report to Patrick Disney, Managing Director of SEI’s Institutional Group in the EMEA region.

Giles brings considerable experience in asset management to the role at SEI. He joins the company after establishing his own consulting business working with boutique asset managers to establish opportunities within the investment industry. Prior to starting the consulting business, Giles was involved in new business development at RMB Asset Management, where he was responsible for managing consultant relationships and growing RMB’s institutional business. Giles’ career in institutional asset management also includes both business development and sales roles at Old Mutual Asset Management and experience in servicing institutional clients within Investec Asset Management’s fund management team based in Cape Town. Giles has an MBA from the Graduate School of Business at The University of Cape Town.

Commenting on the appointment, Patrick Disney, Managing Director, SEI’s Institutional Group in the EMEA region said:

“I am delighted to welcome Giles to SEI. Our South African operation is integral to SEI’s global business and this appointment reflects both our commitment to, and optimism for, the region. Giles brings significant institutional asset management experience to the role and I look forward to working with him to build our business in the region.”

Commenting on his appointment to SEI, Giles Mokoka said:

“I am very excited to be joining SEI. As a recognized leader in delivering global solutions, SEI has a significant opportunity in South Africa, and the region as a whole. I am thrilled to have the opportunity to lead the office.”

About SEI South Africa

SEI founded its South African business in 1995 and has an established office in Melrose Arch, Johannesburg, offering a fully staffed team with wide-ranging expertise. Since its first mandate in 1997, SEI has met the needs of South African offshore investors looking for a world class partner with the resources and experience to add value to their global investment strategies through a manager-of-managers program. SEI’s goal is to build solutions that are structurally appropriate for South African retirement/pension funds and to provide clients with the highest level of service and information to effectively run their retirement fund investments. SEI South Africa is one of the only offshore managers in South Africa to provide a fully staffed South African office as well as draw on investment expertise from more than 100 SEI investment professionals around the world.

About SEI’s Institutional Group

SEI’s Institutional Group delivers integrated healthcare, retirement and nonprofit investment solutions to more than 500 global institutional clients (of which 340 are U.S. based) in six different countries. SEI enables clients to meet financial objectives, reduce business risk, and fulfill their due diligence requirements through implemented fiduciary management strategies for defined benefit plans, defined contribution plans, endowments, foundations and other balance sheet assets. For more information, visit http://www.seic.com/enSA/institutional-investors.htm.

About SEI

SEI (NASDAQ:SEIC) is a leading global provider of outsourced asset management, investment processing and investment operations solutions. The company’s innovative solutions help corporations, financial institutions, financial advisors, and affluent families create and manage wealth. As of June 30, 2010, through its subsidiaries and partnerships in which the company has a significant interest, SEI administers $380 billion in mutual fund and pooled assets and manages $149 billion in assets. SEI serves clients, conducts or is registered to conduct business and/or operations, from numerous offices worldwide. For more information, visit http://www.seic.com/enSA/index.htm.