| Business | Phone |
| Abas Computing Ltd 50 Thorny Brae Dr, Thornhill L3T 3G6 | (905) 731-5040 |
| Akanda Innovations Inc 175 Commerce Valley Dr W, Thornhill L3T 7P6 | (905) 886-4166 |
| Alan Wassyng Consulting Ltd 56 Huntington Park Dr, Thornhill L3T 7G5 | (905) 731-4053 |
| Gms Computing 239 Franklin Ave, Thornhill L4J 7L5 | (905) 771-6458 |
| Gimps Computing Svc 80 Inverlochy Blvd #202, Thornhill L3T 4P3 | (905) 579-3794 |
| Superlative Computer Cnsltng 94 Robinwood Trail, Thornhill L4J 6K7 | (905) 660-3003 |
| Sigma Star Research Corp 23 Almond Ave, Thornhill L3T 1K9 | (416) 221-1299 |
| Hugh Wilson & Assoc Consultant 4 Longbridge Rd, Thornhill L4J 1L5 | (905) 764-5312 |
| I-Support 11 Roman Rd, Thornhill L3T 4J8 | (905) 889-8877 |
| Idealogical Systems Inc 9 Blue Spruce Lane, Thornhill L3T 3W8 | (905) 707-8811 |
| Integrated Visual Systems 216 York Hill Blvd, Thornhill L4J 2P6 | (905) 731-5122 |
| Keysoft International Ltd 184 Steeles Ave E, Thornhill L3T 1A5 | (905) 889-2173 |
| Mancunian Computer Accounting 19 German Mills Rd, Thornhill L3T 4H4 | (905) 731-2303 |
| Marshall H Goodman Software 22 Sycamore Dr, Thornhill L3T 5V5 | (905) 764-3731 |
| Matison Consulting Group Inc 16 Waterloo Crt, Thornhill L3T 6L9 | (905) 707-3377 |
| Mc Kenzie-Sanders Comms Ltd 138 Willowbrook Rd, Thornhill L3T 5L3 | (905) 886-6380 |
| Newstream Systems Inc 63 Gretman Cres, Thornhill L3T 5L9 | (905) 882-1029 |
| Pister Group 55 Ramblewood Lane, Thornhill L4J 6R8 | (905) 886-9470 |
| Pragmatic Computer Solutions 115 Millcroft Way, Thornhill L4J 6P5 | (905) 882-0230 |
| S G Consultants 900 Steeles Ave W #512, Thornhill L4J 8C2 | (905) 660-7997 |
| S R Consulting 16 Parsons Pl, Thornhill L4J 7B2 | (905) 669-6269 |
| Simpson, Paul 7089 Yonge St, Thornhill L3T 2A7 | (905) 889-7232 |
| Siroky Group 300 John St #506, Thornhill L3T 5W4 | (905) 889-0555 |
| Steltrex Systems Corp 338 Steeles Ave E, Thornhill L3T 1A8 | (905) 771-8798 |
| World Connect Inc 66 Centre St, Thornhill L4J 1E9 | (905) 731-4184 |
| Centrelink Limited 4 Framingham Dr, Thornhill L3T 4H3 | (905) 764-2834 |
| Cherniak Software Dev Corp 10 Commerce Valley Dr E #400, Thornhill L3T 7N7 | (905) 771-7011 |
| Dbtek Solutions 3 Alexis Rd, Thornhill L3T 6Z2 | (905) 764-0282 |
| Dfc Intl Computing Inc 52 Mowatt Crt, Thornhill L3T 6V5 | (905) 731-6449 |
| Dynamic Alliances 35 Heatherton Way, Thornhill L4J 3E7 | (905) 763-1372 |
| Freedman & Assoc 49 Joshua Crt, Thornhill L4J 8B6 | (905) 771-6040 |
| G D Consultants 37 German Mills Rd, Thornhill L3T 4H4 | (905) 882-6051 |
| Gavcor Computer Svc Inc 1118 Centre St #206, Thornhill L4J 7R9 | (905) 882-4513 |