| # | Name | Location | Applications |
|---|---|---|---|
| 1. | I.R.S. S.P.A. | 🇮🇹 CAMPAGNOLA EMILIA (RE), Italy | 1 |
| 2. | I.R.S. S.p.A. | 🇮🇹 Campagnola Emilia (Reggio Emilia), Italy | 1 |
| 3. | I.R.S. S.P.A. | 🇮🇹 Campagnola Emilia, Italy | 1 |
| 4. | IR SCIENTIFIC INC. | 🇨🇦 Halifax, Canada | 1 |
| 5. | IR Systems International | 🇺🇸 Charlotte, NC, United States | 3 |
| 6. | IR Systems International | 🇺🇸 Huntersville, NC, United States | 3 |
| 7. | IRSPEC CORPORATION | 🇯🇵 Tsukuba-shi,, Japan | 1 |
| 8. | IRSTEA | 🇫🇷 , France | 1 |
| 9. | IRSWEEP AG | 🇨🇭 Stäfa, Switzerland | 7 |