EXHIBIT 21
Subsidiaries of Atrion Corporation
As of December 31, 2023
| Subsidiary | State of Incorporation | Ownership |
| Atrion Medical Products, Inc. | Delaware | 100% |
| Halkey-Roberts Corporation | Delaware | 100% |
| Quest Medical, Inc. | Texas | 100% |
| AlaTenn Pipeline Company LLC | Alabama | 100% |
| Atrion Leasing Company LLC | Alabama | 100% |