| Business | Phone |
| Peleton Photonic Systems 2355 St Laurent Blvd, Ottawa K1G 4L2 | (613) 737-6700 |
| Optical Communication Products 2527 Baseline Rd, Ottawa K2C 0E3 | (613) 596-5006 |
| Photon Advanced Technologies 1525 Carling Ave, Ottawa K1Z 8R9 | (613) 792-4104 |
| BTI Systems 2191 Thurston Dr, Ottawa K1G 6C9 | (613) 688-4769 |
| Cablecom International Network 855 Industrial Ave #10, Ottawa K1G 4L4 | (613) 738-2998 |
| Chorum Technologies 2299 Edwin Cres, Ottawa K2C 1H8 | (613) 828-0888 |
| Dafocom Solutions Inc 2000 Thurston Dr #7, Ottawa K1G 4K7 | (613) 739-7953 |
| Dowslake Microsystems Corp 1050 Baxter Rd, Ottawa K2C 3P1 | (613) 829-3147 |