EXHIBIT 21 Subsidiaries of the Registrant As of March 1, 2002, the following is a list of the parent (Registrant) and its active subsidiaries, together with their subsidiaries. Except as noted, all voting securities of the listed subsidiaries are 100% beneficially owned by the Registrant or a subsidiary thereof. The subsidiaries are arranged alphabetically by state and then country of incorporation or organization. - -------------------------------------------------------------------------------------------------------------------- State or Country of Incorporation Name of Parent Name of Company or Organization ==================================================================================================================== 1. PerkinElmer, Inc. Massachusetts N/A 2. Applied Surface Technology, Inc. California PerkinElmer, Inc. 3. CCS Packard, Inc. California Packard BioScience Company 4. PerkinElmer Detection Systems, Inc. California PerkinElmer, Inc. 5. Amplitudes, Incorporated Connecticut Packard BioScience Company 6. Advanced Bioconcepts, Inc. Delaware PerkinElmer Life Sciences, Inc. 7. Carl Consumable Products, LLC Delaware Packard Instrument Company, Inc. (51%) 8. Genomic Solutions Inc. Delaware PerkinElmer, Inc. (2%) 9. Lumen Technologies, Inc. Delaware PerkinElmer, Inc. 10. NEN Life Sciences, Inc. Delaware PerkinElmer, Inc. 11. Packard BioChip Technologies, LLC Delaware PBCT Corporation 12. Packard BioScience Company Delaware PerkinElmer, Inc. 13. Packard Holding, Inc. Delaware Packard BioScience Company 14. Packard Instrument Company, Inc. Delaware Packard BioScience Company 15. PBCT Corporation Delaware Packard BioScience Company 16. PerkinElmer Detection Systems, Inc. Delaware PerkinElmer, Inc. 17. PerkinElmer Instruments LLC Delaware PerkinElmer, Inc. 18. PerkinElmer Labworks, Inc. Delaware PerkinElmer, Inc. 19. PerkinElmer Life Sciences, Inc. Delaware NEN Life Sciences, Inc. 20. PerkinElmer Optoelectronics NC, Inc. Delaware Lumen Technologies, Inc. 21. PerkinElmer Optoelectronics SC, Inc. Delaware Lumen Technologies, Inc. 22. PerkinElmer Receivables Company Delaware PerkinElmer, Inc. 23. PKL LLC Delaware PerkinElmer Holdings, Inc. (49%) 24. Receptor Biology, Inc. Delaware PerkinElmer Life Sciences, Inc. 25. PerkinElmer Holdings, Inc. Massachusetts PerkinElmer, Inc. 26. PerkinElmer Automotive Research, Inc. Texas PerkinElmer Holdings, Inc. 27. Perkin-Elmer Argentina S.R.L Argentina PerkinElmer Holdings, Inc. 28. Packard BioScience Pty. Ltd. Australia Packard BioScience Holding, B.V. 29. Perkin Elmer Pty Ltd. Australia PerkinElmer Holdings, Inc. 30. Packard BioScience GesmbH Austria Packard BioScience Holding, B.V. 31. PerkinElmer Vertriebs GesmbH Austria Wellesley BV 32. Packard BioScience Benelux NV Belgium Packard BioScience Company (50.4%)(1) 33. PerkinElmer Belgium N.V. Belgium PerkinElmer Life Sciences, Inc. 34. PerkinElmer NV SA Belgium PerkinElmer Life Sciences, Inc. 35. NEN Life Science Products (Bermuda) Ltd. Bermuda PerkinElmer Life Sciences, Inc. 36. PerkinElmer do Brasil Ltda. Brazil PerkinElmer International CV (94.6%)(2) 37. Advanced Bioconcept Company Canada Advanced Bioconcepts, Inc. 38. Bragg Photonics, Inc. Canada PerkinElmer Canada Inc. (31%) 39. BioSignal Packard, Inc. Canada Packard BioScience Holding, B.V. 40. Canberra-Packard Canada Ltd. Canada Ontario Ltd. (962930) (60%)(3) 41. Ontario Ltd. (962930) Canada BioSignal Packard, Inc. 42. Ontario Inc. (962931) Canada BioSignal Packard, Inc. 43. PerkinElmer Canada Inc. Canada PerkinElmer, Inc. 44. PerkinElmer Canada Investments Inc. Canada PerkinElmer International CV 45. PerkinElmer Instruments International Ltd. Cayman Islands PerkinElmer International CV 46. PerkinElmer Sciex Instruments Canada PerkinElmer Canada, Inc. (50%) - -------- (1) Packard BioScience Holding, B.V. owns 49.6% (2) PerkinElmer Holdings, Inc. owns 5%. PerkinElmer Life Sciences, Inc. owns .4%. (3) Ontario Inc. (962931) owns 40%. Exhibit 21 - -------------------------------------------------------------------------------------------------------------------- State or Country of Incorporation Name of Parent Name of Company or Organization ==================================================================================================================== 47. PerkinElmer Optoelectronics Philippines, Inc. Cayman Islands PerkinElmer International CV 48. PerkinElmer Chile Limitada Chile PerkinElmer Holdings, Inc.(4) 49. PerkinElmer Shenzhen Industrial Ltd. China PerkinElmer Optoelectronics GmbH 50. Shanghai EG&G Reticon Optoelectronics Co. Ltd. China PerkinElmer, Inc. (50%) 51. Perkin Elmer de Centro America S.A. Costa Rica PerkinElmer Holdings, Inc. 52. Perkin-Elmer S.R.O. Czech Republic Wellesley BV 53. PerkinElmer A/S Denmark Wallac Oy 54. PerkinElmer Egypt Ltd. Egypt PerkinElmer International CV 55. PerkinElmer Oy Finland Wellesley BV 56. Wallac Finland Oy Finland Wallac Oy 57. Wallac Oy Finland PerkinElmer Oy 58. Packard Instrument SA France Packard BioScience Holding, B.V.(5) 59. PerkinElmer Life Sciences (France) SA France PerkinElmer Life Sciences, Inc. 60. PerkinElmer S.A.S. France PerkinElmer Benelux BV 61. NEN Life Science Products GmbH Germany PerkinElmer Life Sciences, Inc. 62. Packard BioScience GmbH Germany Packard BioScience Holding, B.V. 63. PerkinElmer GmbH & Co. KG Germany PerkinElmer Instruments GmbH (58%)(6) 64. PerkinElmer Holding GmbH Germany PerkinElmer, Inc. 65. PerkinElmer Instruments GmbH Germany PerkinElmer Holdings, Inc. 66. PerkinElmer Instruments International Ltd. & Co. KG Germany PerkinElmer International CV(7) 67. PerkinElmer Optoelectronics GmbH Germany PerkinElmer GmbH & Co KG 68. Wallac Distribution GmbH Germany PerkinElmer Instruments GmbH 69. Packard Pacific Limited Hong Kong Packard BioScience Company 70. PerkinElmer Limited Hong Kong PerkinElmer International CV(8) 71. Perkin Elmer Hungaria Kft Hungary Wellesley BV 72. PT. Fluid Sciences Batam Indonesia Fluid Sciences Singapore Pte. Ltd. 73. PT. PerkinElmer Batam Indonesia PerkinElmer Holdings, Inc. 74. Packard BioScience s.r.l. Italy Packard BioScience Holding, B.V. 75. Perkin Elmer Italia SpA Italy PerkinElmer Srl, Italy 76. PerkinElmer Life Sciences Italy Srl Italy PerkinElmer Life Sciences, Inc. 77. Perkin Elmer Srl Italy Wellesley BV 78. Packard Japan KK Japan Packard BioScience Holding, B.V. 79. Perkin-Elmer Japan Co., Ltd. Japan PerkinElmer Holdings, Inc. 80. PerkinElmer Life Sciences Japan KK Japan Wallac Oy 81. Perkin Elmer Yuhan Hoesa Korea Wellesley BV 82. Perkin Elmer Sdn. Bhd. Malaysia PerkinElmer International CV 83. Perkin Elmer de Mexico, S.A. Mexico PerkinElmer Holdings, Inc.(9) 84. Packard BioScience BV Netherlands Packard BioScience Holding, B.V. 85. Packard BioScience Holding, B.V. Netherlands Packard BioScience Company 86. PerkinElmer Benelux B.V. Netherlands Wellesley BV 87. PerkinElmer International C.V. Netherlands PerkinElmer Holdings, Inc. (99%)(10) 88. PerkinElmer Life Sciences Netherlands BV Netherlands PerkinElmer Life Sciences, Inc. 89. Wellesley B.V. Netherlands PerkinElmer International CV 90. Wallac Norge AS Norway Wallac Oy 91. EG&G Omni, Inc. Philippines PerkinElmer Holdings, Inc. 92. PerkinElmer Instruments (Philippines) Corporation Philippines PerkinElmer Holdings, Inc. 93. Perkin Elmer Polska Sp zo.o. Poland Wellesley BV 94. PerkinElmer Portugal Lda. Portugal Wellesley BV(1)1 95. PerkinElmer Rus Russia PerkinElmer Oy 96. Fluid Sciences Singapore Pte. Ltd. Singapore PerkinElmer Singapore Pte Ltd. 97. PerkinElmer Singapore Pte Ltd. Singapore PerkinElmer International CV 98. PerkinElmer South Africa (PTY) Ltd. South Africa PerkinElmer International CV 99. PerkinElmer Espana, S.L. Spain Wellesley BV - -------- (4) PerkinElmer Instruments LLC owns a de minimus share. (5) Packard Instrument Company, Inc. owns a de minimus share. (6) PerkinElmer Holding GmbH owns 2.3%, PerkinElmer Automotive Research, Inc. owns 39.7%. (7) PerkinElmer Instruments International, Ltd. owns a de minimus share. (8) Wellesley BV owns a de minimus share. (9) PerkinElmer, Inc. owns a de minimus share. (10) PerkinElmer, Inc. owns the remaining 1%. (11) PerkinElmer International CV owns a de minimus share. - -------------------------------------------------------------------------------------------------------------------- State or Country of Incorporation Name of Parent Name of Company or Organization ==================================================================================================================== 100. PerkinElmer Life Sciences (Spain) SL Spain PerkinElmer Life Sciences Netherlands BV 101. PerkinElmer Sverige AB Sweden Wallac Oy 102. Packard BioScience AG Switzerland Packard BioScience Holding, B.V. 103. PerkinElmer Life Sciences AG Switzerland PerkinElmer Life Sciences, Inc. 104. PerkinElmer (Switzerland) Ltd. Switzerland Wellesley BV 105. Wallac-ADL AG Switzerland Wallac Distribution GmbH 106. PerkinElmer Taiwan Corporation Taiwan PerkinElmer International CV 107. Perkin-Elmer Limited Thailand PerkinElmer International CV 108. Life Science Resources Limited United Kingdom PerkinElmer Holdings, Inc. 109. Packard BioScience Holding, Ltd. United Kingdom Packard Holding, Inc. 110. Packard BioScience, Ltd. United Kingdom Packard BioScience Holding, Ltd. 111. PerkinElmer Life Sciences - UK Ltd. United Kingdom PerkinElmer Life Sciences, Inc. 112. PerkinElmer Ltd. United Kingdom PerkinElmer (UK) Holdings Ltd. 113. PerkinElmer Services Ltd. United Kingdom PerkinElmer (UK) Holdings Ltd. 114. PerkinElmer Q-Arc Ltd. United Kingdom PerkinElmer (UK) Holdings Ltd. 115. PerkinElmer (UK) Holdings Ltd. United Kingdom Wellesley BV 116. PerkinElmer (UK) Ltd. United Kingdom PerkinElmer (UK) Holdings Ltd. 117. Receptor Biology UK Ltd. United Kingdom Receptor Biology, Inc. 118. ILC Light Source Foreign Sales Corporation U.S. Virgin Islands PerkinElmer Optoelectronics NC, Inc. 119. Optical Radiation Foreign Sales Corporation U.S. Virgin Islands PerkinElmer Optoelectronics SC, Inc. 120. PerkinElmer Exporters Ltd. U.S. Virgin Islands PerkinElmer Holdings, Inc.