| Business | Phone |
| Gerhard Technical Svc 1822 Southview Dr, Sudbury P3E 2M3 | (705) 522-8242 |
| Klohn-Crippen Consultants Ltd 1351c Kelly Lake Rd #7, Sudbury P3E 5P5 | (705) 522-1367 |
| On-Site Svc Ltd 325 Regent St, Sudbury P3C 4E1 | (705) 675-5922 |
| Testmark Laboratories Ltd 22 Brady St, Sudbury P3E 6E1 | (705) 669-0123 |
| Wesa 764 Notre Dame Ave, Sudbury P3A 2T4 | (705) 525-6075 |
| Wintergreen Ecological Svc 885 Regent St, Sudbury P3E 5M4 | (705) 674-7981 |
| Earth Care Environmental Prdct 61 Perttula Rd, Sudbury | (705) 523-1241 |