| # | Name | Location | Applications |
|---|---|---|---|
| 1. | R.F KEEPER LTD | 🇮🇱 Rosh Ha'ain, Israel | 4 |
| 2. | RF Kettle Company, LLC | 🇺🇸 Fletcher, NC, United States | 6 |
| 3. | RF KINETICS INC. | 🇨🇦 Amherstburg, Ontario, Canada | 3 |
| 4. | RFK Engineering Solutions, LLC | 🇺🇸 Bethesda, MD, United States | 1 |