Exhibit 21

Subsidiaries of the Registrant

1. Meridian Bioscience Corporation, an Ohio corporation

2. Meridian Life Science, Inc., a Maine corporation

3. Meridian Bioscience Europe, s.r.l., an Italian corporation

4. Meridian Bioscience Europe S.A., a Belgian corporation

5. Meridian Bioscience Europe B.V., a Dutch corporation

6. Meridian Bioscience Asia Pte. Ltd., a Singapore corporation

7. Meridian Bioscience UK Ltd., a United Kingdom corporation

8. Meridian Bioscience International Ltd., a United Kingdom corporation

9. Meridian Bioscience Beijing, LLC, a Wholly Foreign Owned Enterprise located in Beijing, China

10. Meridian Bioscience Canada, Inc., a Canadian corporation

11. Bioline Ltd., a United Kingdom corporation

12. Bioline Reagents Ltd., a United Kingdom corporation

13. Bioline GmbH, a German corporation

14. Bioline (Aust) Pty Ltd., an Australian corporation

15. Magellan Biosciences, Inc., a Delaware corporation

16. Magellan Diagnostics, Inc., a Delaware corporation