| Business | Phone |
| Intertechnology Limited 5777 Ch Saint-Francois, Saint-Laurent H4S 1B6 | (514) 333-0930 |
| Kayteck Instruments 100 Boul Deguire, Saint-Laurent H4N 1N4 | (514) 338-1750 |
| Original Solutions Inc 7355 Rte Transcanadienne, Saint-Laurent H4T 1T3 | (514) 856-9555 |
| Tektronix Canada Inc 4929 Place Olivia, Saint-Laurent H4R 2V6 | (514) 331-4334 |
| Testforce Systems Inc 9450 Rte Transcanadienne, Saint-Laurent H4S 1R7 | (514) 856-0970 |
| Electro Meters Ltee 970 Montee De Liesse, Saint-Laurent H4T 1W7 | (514) 336-3020 |