| | | | | | | | |
| Name | | Jurisdiction |
| Accelerated Concepts, Inc. | | Florida, United States |
| Accelerated Concepts Pty Ltd. | | Australia |
| Ctek, Inc. | | California, United States |
| Digi International Canada Inc. | | Ontario, Canada |
| Digi International GmbH | | Germany |
| Digi International (HK) Ltd. | | Hong Kong |
| Digi International Kabushikikaisha | | Japan |
| Digi International Limited | | United Kingdom |
| Digi International Spain S.A. | | Spain |
| Digi m2m Solutions India Pvt. Ltd. | | India |
| Digi Wireless Singapore Pte. Ltd. | | Singapore |
| Digi SmartSense, LLC | | Delaware, United States |
| FreshTemp, LLC | | Pennsylvania, United States |
| Haxiot, Inc. | | Delaware, United States |
| ITK International Inc. | | Delaware, United States |
| Kick Wireless, Inc. | | Delaware, United States |
| SMART Temps, L.L.C. | | Indiana, United States |
| Opengear, Inc. | | Utah, United States |
| Opengear Limited | | England/Wales |
| Opengear Pty Ltd. | | Australia |
| VClipz, Inc. | | Delaware, United States |
| Ventus Global Communications, LLC | | Delaware, United States |
| Ventus Holdings, LLC | | Delaware, United States |
| Ventus IP Holdings, LLC | | Delaware, United States |
| Ventus Networks, LLC | | Connecticut, United States |
| Ventus Technologies, LLC | | Delaware, United States |
| Ventus Wireless Services CA, Inc. | | California, United States |
| Ventus Wireless Services, Inc. | | Delaware, United States |
| Ventus Wireless, LLC | | Delaware, United States |