| Business | Phone |
| Inspec-Sol Ltd 626 Cataraqui Woods Dr #9, Kingston K7P 1T8 | (613) 389-9812 |
| Malroz Engineering Inc 168 Montreal St, Kingston K7K 3G4 | (613) 548-3446 |
| Oakleaf Environmental Svc Inc 611 Tanner Dr, Kingston K7M 8Y2 | (613) 384-4003 |
| Wesa 4 Cataraqui St, Kingston K7K 1Z7 | (613) 531-2725 |
| Xcg Consultants Ltd 33 Earl St, Kingston K7L 2G4 | (613) 542-5888 |
| Cleghorn & Assoc 33 Earl St, Kingston K7L 2G4 | (613) 530-3600 |
| Drain-All 1450 Mcadoo's Lane, Kingston K7L 4V4 | (613) 549-7995 |
| Earthworks Technologies Inc 650 Cataraqui Woods Dr, Kingston K7P 2Y4 | (613) 634-0307 |