EXHIBIT 21 SUBSIDIARIES OF THE REGISTRANT ------------------------------ JURISDICTION OF ORGANIZATION NAME OR INCORPORATION ---- ---------------- SEI Investments Distribution Company Pennsylvania SEI Investments Management Corporation Delaware SEI, Inc. Canada (Federal) SEI Capital Limited Canada (Federal) Rembrandt Financial Services Company Pennsylvania SEI Investments Developments, Inc. Delaware SEI Investments Mutual Funds Services Delaware SEI Investments Fund Management Delaware SEI Trust Company Pennsylvania SEI Funds, Inc. Delaware SEI Investments, Inc. Delaware SEI Global Investments Corporation Delaware SEI Capital AG Switzerland Primus Capital Advisors Company Canada (Federal) SEI Advanced Capital Management, Inc. Delaware SEI Global Capital Investments, Inc. Delaware SEI Global Management (Cayman) Inc. Cayman Islands, B. W. I. SEI Global Asset Management Limited Ireland Fund Resources International Limited Ireland SEI Investments Argentina, S. A. Argentina SEI Global Holdings (Cayman) Inc. Cayman Islands, B. W. I. Latinvest Sociedad de Bolsa, S. A. Argentina Quadrum, S. A. Argentina Fortum, S. A. DE C.V. Mexico 131