Exhibit 21.1
| Subsidiaries of Hologic |
Jurisdiction of Incorporation or Organization | |
| Beijing Hologic Technology Co., Ltd. |
China | |
| BioLucent, LLC |
Delaware | |
| Cytyc Corporation |
Delaware | |
| Direct Radiography Corp. |
Delaware | |
| Gen-Probe Incorporated |
Delaware | |
| Hologic Asia, Limited |
Hong Kong | |
| Hologic (China) Enterprise Management Consulting Co., Ltd. |
China | |
| Hologic Hitec-Imaging GmbH |
Germany | |
| Hologic International Holdings B.V. |
Netherlands | |
| Hologic Investment Corp. |
Massachusetts | |
| Hologic Latin America Ltda. |
Brazil | |
| Interlace Medical, Inc. |
Delaware | |
| Navigation Three Limited |
Hong Kong | |
| R2 Technology Canada, Inc. |
Canada | |
| Sentinelle Medical Inc. |
Canada | |
| Suros Surgical Systems, Inc. |
Delaware | |
| Third Wave Technologies, Inc. |
Delaware | |
| TCT International Co., Ltd. |
British Virgin Islands | |
| Hologic España S.A. |
Spain | |
| Hologic France S.A. |
France | |
| Hologic N.V. |
Belgium | |
| Sentinelle Medical USA Inc. |
Nevada | |
| Third Wave Agbio, Inc. |
Delaware | |
| Hologic Japan, Inc. |
Japan | |
| Beijing Century Aikang Technology Co., Ltd. |
China | |
| Cruiser, Inc. |
Delaware | |
| Cytyc Limited Liability Company |
Delaware | |
| Cytyc Development Company, LLC |
Delaware | |
| Cytyc International, Inc. |
Delaware | |
| Cytyc Prenatal Products Corp. |
Delaware | |
| Cytyc Securities Corporation |
Massachusetts | |
| Cytyc Surgical Products III, LLC |
Delaware | |
| SST Merger Corp. |
Delaware | |
1
| Subsidiaries of Hologic |
Jurisdiction of Incorporation or Organization | |
| Hologic Limited Partnership |
Massachusetts | |
| Cytyc Surgical Products, Limited Partnership |
Massachusetts | |
| Cytyc Surgical Products II, Limited Partnership |
Massachusetts | |
| Cytyc Interim, Inc. |
Delaware | |
| Hologic Surgical Products Costa Rica, S.A. |
Costa Rica | |
| Cytyc Cayman Limited |
Cayman Islands | |
| Hologic Asia Pacific Limited |
Hong Kong | |
| Hologic Netherlands B.V. |
Netherlands | |
| Hologic Canada Limited |
Canada | |
| Hologic (Australia) Pty Ltd. |
Australia | |
| Hologic Deutschland, GmbH |
Germany | |
| Hologic Europe Middle East and Africa, S.A. |
Switzerland | |
| Hologic France SARL |
France | |
| Hologic Iberia, S.L. |
Spain | |
| Hologic Italia S.r.l. |
Italy | |
| Hologic (UK) Limited |
England and Wales | |
| Hologic Suisse SA |
Switzerland | |
| Gen-Probe International, Inc. |
Delaware | |
| Gen-Probe Prodesse, Inc. |
Wisconsin | |
| Gen-Probe Sales & Service, Inc. |
Delaware | |
| Gen-Probe Australia Pty Ltd. |
Australia | |
| Gen-Probe Czech Republic s.r.o. |
Czech Republic | |
| Gen-Probe Denmark ApS |
Denmark | |
| Gen-Probe Italia S.r.l. |
Italy | |
| Gen-Probe Life Sciences Ltd. |
United Kingdom | |
| Gen-Probe Netherlands B.V. |
Netherlands | |
| Gen-Probe Sweden AB |
Sweden | |
| Gen-Probe UK Limited |
United Kingdom | |
| Food DNA Services Limited |
United Kingdom | |
| Tepnel Biosystems Limited |
United Kingdom | |
| Tepnel Diagnostics Limited |
United Kingdom | |
| Tepnel Medical Limited |
United Kingdom | |
| Tepnel Scientific Services Limited |
United Kingdom | |
| Wildlife DNA Services Limited |
United Kingdom | |
| Molecular Light Technology Limited |
United Kingdom | |
2
| Subsidiaries of Hologic |
Jurisdiction of Incorporation or Organization | |
| Bioanalysis Limited |
United Kingdom | |
| Gen-Probe Cardiff Ltd. |
United Kingdom | |
| Beijing TCT Jinbai Technologies Co., Ltd. |
China | |
| Huaxia Likang (Beijing) Technology Co., Ltd. |
China | |
| Jiangsu Kang Ke Medical Devices Co., Ltd. |
China | |
| Zheng Zhou Yong Run Medical Devices Co., Ltd. |
China | |
| TCT Medical (Beijing) Clinical Test Institute |
China | |
| Hangzhou Zuanbai Technology Co., Ltd |
China | |
| Mingwood Biotechnology Co., Ltd. |
China | |
| Century Likang (Beijing) Co., Ltd. |
China | |
| Beijing TCT Medical Technology Co., Ltd. |
China | |
3