| Business | Phone |
| Allan Crawford Assoc Ltd 5835 Coopers Ave, Mississauga L4Z 1Y2 | (905) 890-2010 |
| Altecon Data Communications 7510 Bath Rd, Mississauga L4T 1L2 | (905) 677-6500 |
| Rycom Cci Inc 226 Britannia Rd E, Mississauga L4Z 1S6 | (905) 502-6616 |
| Tellabs 2400 Meadowvale Blvd, Mississauga | (905) 858-2058 |
| Charles Industries Of Canada 3262 Bloomfield Dr, Mississauga L5N 6X8 | (905) 785-6805 |