| # | Name | Location | Applications |
|---|---|---|---|
| 1. | K Tube Technology LLC | 🇺🇸 San Jose, CA, United States | 2 |
| 2. | KTU Friedrichshafen GmbH | 🇩🇪 Friedrichshafen, Germany | 1 |
| 3. | KTURBO INC. | 🇰🇷 Chungbuk, South Korea | 1 |
| 4. | KTURBO, INC. | 🇰🇷 Cheongwon-gun, Chungbuk, South Korea | 2 |
| 5. | Kturbo, Inc. | 🇰🇷 Buyong-Myeon, Chengwon-Gun, Chungbuk, South Korea | 1 |