| # | Name | Location | Applications |
|---|---|---|---|
| 1. | P.T. ROM AND ASSOCIATES LLC | 🇺🇸 Elkton, MD, United States | 8 |
| 2. | P.T. ROM And Associates LLC | 🇺🇸 Elkon, MD, United States | 1 |
| 3. | PTR Baler and Compacter Company | 🇺🇸 Philadelphia, PA, United States | 1 |
| 4. | PTR BALER AND COMPACTOR COMPANY | 🇺🇸 Philadelphia, PA, United States | 5 |
| 5. | PTR Baler and Compactor Company | 🇺🇸 Philadelpiha, PA, United States | 1 |
| 6. | PTR Prazisionstechnik GmbH | 🇩🇪 Maintal, Germany | 1 |
| 7. | PTR Robots ApS | 🇩🇰 Odense, Denmark | 2 |
| 8. | PTR-Precision Technologies, Inc. | 🇺🇸 Enfield, CT, United States | 1 |