| Business | Phone |
| Hrm Technologies Inc 6428 Rte Transcanadienne, Saint-Laurent H4T 1X4 | (514) 636-1162 |
| Raytron Limited 2775 Rue Sabourin, Saint-Laurent H4S 1M9 | (514) 331-5100 |
| Sederta Inc 5055 Rue Levy, Saint-Laurent H4R 2N9 | (514) 338-8749 |
| Specialty Sensor Technologies 4513 Rue Dobrin, Saint-Laurent H4R 2L8 | (514) 337-4554 |