SOTERA HEALTH COMPANY Subsidiaries
Every subsidiary the company listed in Exhibit 21 of its annual reports, newest list first (6 lists). Names and jurisdictions are as filed.
- 2026-02-24: Subsidiary Companhia Brasileira de Esterilização; Jurisdiction Brazil.
- 2026-02-24: Subsidiary DEROSS Holding B.V.; Jurisdiction Netherlands.
- 2026-02-24: Subsidiary Nelson Laboratories, LLC; Jurisdiction Delaware.
- 2026-02-24: Subsidiary Nelson Laboratories Bozeman, LLC; Jurisdiction Delaware.
| Annual report filed | Subsidiary | Jurisdiction |
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| 2026-02-24 | Companhia Brasileira de Esterilização | Brazil |
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| 2026-02-24 | DEROSS Holding B.V. | Netherlands |
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| 2026-02-24 | Nelson Laboratories, LLC | Delaware |
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| 2026-02-24 | Nelson Laboratories Bozeman, LLC | Delaware |
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| 2026-02-24 | Nelson Laboratories Fairfield Holdings, LLC | Delaware |
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| 2026-02-24 | Nelson Laboratories Fairfield, Inc. | New Jersey |
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| 2026-02-24 | Nelson Laboratories Holdings, LLC | Delaware |
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| 2026-02-24 | Nelson Labs NV | Belgium |
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| 2026-02-24 | Nordion (Canada) Inc. | Canada |
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| 2026-02-24 | Nordion US Holdings LLC | Delaware |
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| 2026-02-24 | Nordion (US) Inc. | Delaware |
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| 2026-02-24 | Regulatory Compliance Associates Inc. | Delaware |
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| 2026-02-24 | REVISS Services (UK) Limited | United Kingdom |
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| 2026-02-24 | RSI Leasing, LLC | California |
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| 2026-02-24 | Sotera Health LLC | Delaware |
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| 2026-02-24 | Sotera Health Holdings, LLC | Delaware |
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| 2026-02-24 | Sotera Health Services, LLC | Delaware |
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| 2026-02-24 | Sterigenics Belgium Fleurus S.A. | Belgium |
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| 2026-02-24 | Sterigenics Belgium Petit Rechain S.A. | Belgium |
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| 2026-02-24 | Sterigenics Brasil Participaçãos EIRELI | Brazil |
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| 2026-02-24 | Sterigenics Costa Rica, S.R.L. | Costa Rica |
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| 2026-02-24 | Sterigenics Denmark A/S | Denmark |
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| 2026-02-24 | Sterigenics EO Canada, Inc. | Canada |
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| 2026-02-24 | Sterigenics France S.A.S. | France |
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| 2026-02-24 | Sterigenics Germany GmbH | Germany |
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| 2026-02-24 | Sterigenics Italy S.p.A. | Italy |
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| 2026-02-24 | Sterigenics NV | Belgium |
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| 2026-02-24 | Sterigenics Radiation Technologies, LLC | Delaware |
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| 2026-02-24 | Sterigenics Radiation Technologies Canada, Inc. | British Columbia |
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| 2026-02-24 | Sterigenics Radiation Technologies Holdings, LLC | Delaware |
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| 2026-02-24 | Sterigenics Radiation Technologies IN, Inc. | Indiana |
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| 2026-02-24 | Sterigenics, S. de R.L. de C.V. | Mexico |
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| 2026-02-24 | Sterigenics S.A.S. | France |
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| 2026-02-24 | Sterigenics Shanghai E-beam Ltd. | China |
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| 2026-02-24 | Sterigenics Shanghai ETO Ltd. | China |
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| 2026-02-24 | Sterigenics Thailand, Ltd. | Thailand |
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| 2026-02-24 | Sterigenics UK Limited | United Kingdom |
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| 2026-02-24 | Sterigenics U.S., LLC | Delaware |
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| 2026-02-24 | STR C.V. | Netherlands |
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| 2026-02-24 | Unidade de Esterilização Cotia LTDA | Brazil |
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