Exhibit 21.1
List of Subsidiaries of Simon Property Group, Inc.
Subsidiary
Jurisdiction
Simon Property Group, L.P. The Retail Property Trust Simon Property Group (Illinois), L.P. Simon Property Group (Texas), L.P. M.S. Management Associates, Inc. Kravco Simon Investments, L.P. Premium Outlet Partners, L.P.
Indiana
Massachusetts
Illinois Texas
Delaware Delaware
Simon Property Group Administrative Services Partnership, L.P.
Pennsylvania Delaware Delaware Delaware Delaware Netherlands Luxembourg Luxembourg
SPG Mayflower, LLC
The Simon Realty Group, LLC
Simon Services, Inc.
Simon Global Development B.V. Simon MAC S.a.r.l. Simon International S.a.r.l.
List of Subsidiaries of Simon Property Group, L.P.
Subsidiary
Jurisdiction Massachusetts
The Retail Property Trust
Simon Property Group (Illinois), L.P. Simon Property Group (Texas), L.P. M.S. Management Associates, Inc. Kravco Simon Investments, L.P. Premium Outlet Partners, L.P.
Illinois Texas
Delaware Delaware
Simon Property Group Administrative Services Partnership, L.P.
Pennsylvania Delaware Delaware Delaware Delaware Netherlands Luxembourg Luxembourg
SPG Mayflower, LLC
The Simon Realty Group, LLC
Simon Services, Inc.
Simon Global Development B.V. Simon MAC S.a.r.l. Simon International S.a.r.l.
Omits names of subsidiaries that as of December 31, 2025 were not, in the aggregate, “significant subsidiaries.”
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