| Business | Phone |
| Hightech International Ltd 78 Milliken Meadows Dr, Markham L3R 0V5 | (905) 305-9060 |
| Jis Enterprises Inc 31 Burr Cres, Markham L3R 9B8 | (905) 948-8408 |
| Mega-Lab Mfg Co Ltd 90 Centurian Dr #B, Markham L3R 8C4 | (905) 305-0215 |
| Uthane Research 410 Hood Rd, Markham L3R 3X2 | (905) 940-2356 |
| Voltech International Co 7181 Woodbine Ave, Markham L3R 1A3 | (905) 305-1152 |
| Brodi Chemicals 250 Cochrane Dr #9, Markham L3R 8E5 | (905) 475-6084 |
| Cantol Limited 199 Steelcase Rd W, Markham L3R 2M4 | (905) 475-6141 |
| Clean Chem 25 Bodrington Crt, Markham L6G 1B6 | (905) 415-0026 |