Exhibit 21.1 MICROSTRATEGY INCORPORATED SUBSIDIARIES Aventine, Incorporated MicroStrategy-FSC, Inc. (Delaware) (Barbados) MicroStrategy Administration Corporation MicroStrategy GmbH in Liquidation (Delaware) (Austria) MicroStrategy Management Corporation MicroStrategy Iberica, S.A.U. (Delaware) (Spain) MicroStrategy Services Corporation MicroStrategy International Limited (Delaware) (Bermuda) Strategy.com Incorporated MicroStrategy International II Limited (Delaware) (Bermuda) MicroStrategy Australia Pty. Ltd. MicroStrategy Italy S.r.l. (Australia) (Italy) MicroStrategy Benelux B.V. MicroStrategy Korea Co., Ltd. (Netherlands) (Korea) MicroStrategy Brasil Ltda. MicroStrategy Limited (Brazil) (United Kingdom) MicroStrategy Brasil Ltda. Sucursal Argentina MicroStrategy Mexico, S. de R.L. de C.V. (Argentina) (Mexico) MicroStrategy Canada Incorporated MicroStrategy Schweiz AG in Liquidation (Canada) (Switzerland) MicroStrategy Deutschland GmbH Strategy.com International Limited (Germany) (Bermuda) MicroStrategy France SARL (France)