EXHIBIT 21 LIST OF SUBSIDIARIES SUBSIDIARIES OF THE PERKIN-ELMER CORPORATION State or Jurisdiction Name of Incorporation Organization PKN Overseas Corporation (New York, USA) Perkin-Elmer (UK) Limited (UK) Perkin-Elmer (UK) Pension Trustees Limited (UK) Perkin-Elmer Limited (UK) Applied Biosystems Ltd. (UK) Spartan Ltd. (Channel Isles) Perkin-Elmer Pty Limited (Australia) Perkin-Elmer (Canada) Ltd. (Canada) Perkin-Elmer Sciex * (Canada) Photovac International, Incorporated (New York) Photovac Europa AS (Denmark) Perkin-Elmer Taiwan Corporation (Delaware,USA) Perkin-Elmer (Thailand) Limited (Thailand) Perkin-Elmer AG (Switzerland) Perkin-Elmer Japan Co. Ltd. (Japan) Perkin-Elmer SA (France) Perkin-Elmer (Sweden) AB (Sweden) Perkin-Elmer AB (Sweden) Perkin-Elmer OY (Finland) Perkin-Elmer Nederland BV (The Netherlands) Applied Biosystems, BV (The Netherlands) Perkin-Elmer Belgium NV (Belgium) Perkin-Elmer Sro (Czech Republic) Perkin-Elmer Hungaria Kft (Hungary) Perkin-Elmer Polska Spolka zoo (Poland) Spartan Ltd. + (Channel Isles) Listronagh Company (Ireland) Perkin-Elmer Instruments Asia Pte. Ltd. (Singapore) Perkin-Elmer Instruments Pte. Ltd. (Malaysia) Perkin-Elmer Holding GmbH (Germany) Bodenseewerk Perkin-Elmer GmbH (Germany) Perkin-Elmer GmbH (Austria) Note: Persons directly owned by subsidiaries of The Perkin- Elmer Corporation are indented and listed below their immediate parent. * 50% ownership + 49% ownership SUBSIDIARIES OF THE PERKIN-ELMER CORPORATION (cont'd) PKN Overseas Corporation Perkin-Elmer Italia SpA (Italy) Perkin-Elmer Hong Kong, Ltd. (Hong Kong) Perkin-Elmer Analytical and Biochemical Instruments (Beijing) Co., Ltd. (China) Perkin-Elmer International, Inc. (Delaware, USA) Analitica de Centroamerica, S.A. (Costa Rica) Perkin-Elmer Industria e Comercio Ltda. (Brazil) Perkin-Elmer Korea Corporation (Delaware, USA) Perkin-Elmer de Mexico SA (Mexico) Perkin-Elmer Overseas Ltd. (Cayman Islands) PECO Insurance Company Limited (Bermuda) Perkin-Elmer Caribbean Corporation (Delaware, USA) Perkin-Elmer China, Inc. (Delaware, USA) Perkin-Elmer FSC, Inc. (U.S.Virgin Islands) Perkin-Elmer Hispania SA (Spain) Hitachi Perkin-Elmer, Ltd. + (Japan) +49% ownership