| # | Name | Location | Applications |
|---|---|---|---|
| 1. | RTB GmbH & Co. KG | 🇩🇪 Bad LIppspringe, Germany | 1 |
| 2. | RTB GmbH & Co. KG | 🇩🇪 Bad Lippspringe, Germany | 1 |
| 3. | RTB Innovations LLC | 🇺🇸 Mount Joy, PA, United States | 2 |
| 4. | RTBRICK INC. | 🇮🇳 Bangalore, India | 1 |
| 5. | RtBrick Inc. | 🇺🇸 Princeton, NJ, United States | 3 |