| # | Name | Location | Applications |
|---|---|---|---|
| 1. | Bl lncorporated | 🇺🇸 Boulder, CO, United States | 1 |
| 2. | BLL Consulting, Inc. | 🇺🇸 River Forest, IL, United States | 1 |
| 3. | BÖLLHOFF VERBINDUNGSTECHNIK GmbH | 🇩🇪 Bielefeld, Germany | 11 |
| 4. | BÖLLHOFF VERBINDUNGSTECHNIK GMBH | 🇩🇪 Bielefeld, North Rhine-Westphalia, Germany | 1 |