Exhibit 21
List of Subsidiaries
(as of November 12, 2024)
| Name of Subsidiary | Jurisdiction of Incorporation or Organization | |
| Domestic | ||
| Domestic 400 Professional LLC | Delaware | |
| Cangene bioPharma LLC | Maryland | |
| Emergent Commercial Operations Frederick Inc. | Maryland | |
| Emergent Biodefense Operations Lansing LLC | Delaware | |
| Emergent Devices Inc. | Delaware | |
| Emergent Europe Inc. | Delaware | |
| Emergent International Inc. | Delaware | |
| Emergent Manufacturing Operations Baltimore LLC | Delaware | |
| Emergent Product Development Gaithersburg Inc. | Delaware | |
| Emergent Travel Health Inc. | Delaware | |
| International | ||
| Emergent Acquisition Unlimited Company | Ireland | |
| Emergent BioSolutions Canada Inc. | Ontario | |
| Emergent BioSolutions Ireland Limited | Ireland | |
| Emergent Netherlands B.V. | Netherlands | |
| Emergent Operations Ireland Limited | Ireland | |
| Emergent Sales and Marketing Australia Pty Ltd. | Australia | |
| Emergent Sales and Marketing France S.A.S. | France | |
| Emergent Sales and Marketing Germany GmbH | Germany | |
| Emergent Sales and Marketing Singapore Pte. Ltd. | Singapore | |
| Emergent BioSolutions UK Ltd. | England and Wales | |