| # | Name | Location | Applications |
|---|---|---|---|
| 1. | T-DRILL OY | 🇫🇮 Laihia, Finland | 3 |
| 2. | TDR Systems, Inc. | 🇺🇸 Waldorf, MD, United States | 1 |
| 3. | TDR Systems, Inc. t/a CHUTES International | 🇺🇸 Waldorf, MD, United States | 1 |
| 4. | TDR SYSTEMS, INC. t/a CHUTES INTERNATIONAL MANUFACTURING, LLC | 🇺🇸 Waldorf, MD, United States | 1 |