| # | Name | Location | Applications |
|---|---|---|---|
| 1. | H.R.T. II, LLC | 🇺🇸 Maple Heights, OH, United States | 1 |
| 2. | HR TEXTRON INC. | 🇺🇸 Santa Clarita, CA, United States | 40 |
| 3. | HR Textron, Inc. | 🇺🇸 Santa Clara, CA, United States | 3 |
| 4. | HRT Investors Pty Ltd | 🇦🇺 Bolgart, Australia | 1 |
| 5. | HÄRTEREI REESE BOCHUM GMBH | 🇩🇪 Bocum, Germany | 1 |