| Business | Phone |
| A & A Enterprises 3575 14th Ave, Markham L3R 0H6 | (905) 470-1014 |
| Access Links Communications 18 Crown Steel Dr, Markham L3R 9X8 | (905) 470-8240 |
| Amh Communications Inc 176 Carlton Rd, Markham L3R 1Z9 | (905) 477-6375 |
| Asuka Computer 3235 Highway 7, Markham L3R 3P3 | (905) 479-0333 |
| Hyper-Tech Computer Systems 2800 14th Ave #6, Markham L3R 0E4 | (416) 836-2883 |
| Info Pro Systems 9693 Kennedy Rd, Markham L6C 1A4 | (905) 887-9122 |
| Interprise Solutions Inc 164 Torbay Rd, Markham L3R 1G6 | (905) 475-9876 |
| Marcomm Inc 160 Gibson Dr, Markham L3R 3K1 | (905) 947-9995 |
| Metacomm Inc 85 Renfrew Dr, Markham L3R 0N9 | (905) 946-9445 |
| Ods Networks 60 Columbia Way, Markham L3R 0C9 | (905) 415-0384 |
| Perfisans Networks Corp 7828 Kennedy Rd, Markham L3R 5P1 | (905) 943-9996 |
| Piff Computer 220 Royal Crest Crt, Markham L3R 9Y2 | (905) 479-6525 |
| Plexxus Technology Inc 7351 Victoria Park Ave, Markham L3R 3A5 | (905) 479-1188 |
| Procom Technology 2900 John St, Markham L3R 5G3 | (905) 477-9277 |
| E3 Technologies 333 Denison St, Markham L3R 2Z4 | (905) 947-4333 |
| Systemcore Computer Inc 3950 14th Ave, Markham L3R 0A9 | (905) 513-1511 |
| Techwell Pc 3075 14th Ave, Markham L3R 0G9 | (905) 475-7570 |
| Epcd Group Inc 1020 Denison St, Markham L3R 3W5 | (905) 477-8722 |
| Zodiac Systems 7725 Birchmount Rd #25, Markham L3R 9X3 | (905) 479-9095 |
| Brains Ii Inc 165 Konrad Cres, Markham L3R 9T9 | (905) 946-8700 |
| Dynamic Solutions Corp 267 Idema Rd, Markham L3R 1B1 | (905) 946-8693 |
| Cat-Tec Inc 7030 Woodbine Avenue, Suite 500, Markham L3R 6G2 | (416) 840-6560 |
| Exacom Development Inc 220 Royal Crest Crt, Markham L3R 9Y2 | (905) 479-9166 |
| Comtech 500 Alden Rd, Markham L3R 5H5 | (905) 475-2451 |
| Coral Technologies 140 Renfrew Dr #104, Markham L3R 6B3 | (905) 940-9300 |
| Corporate Network Computer 3555 14th Ave #9, Markham L3R 0H5 | (905) 477-1114 |
| Datacom 57 Calderbridge Cres, Markham L3R 9M6 | (905) 415-8655 |
| End To End Networks 210 Cochrane Dr, Markham | (905) 415-8300 |
| Evron Computer Systems Corp 5 Denison St, Markham L3R 1B5 | (905) 477-0444 |
| Gak Networking Systems 7291 Victoria Park Ave, Markham L3R 3A4 | (905) 947-4550 |
| Twinbytes Inc. 37 Main Street N., Markham L3P 1X4 | (905) 471-5904 |