| Business | Phone |
| Agri-Waste Technology Inc 5400 Etta Burke Ct, Raleigh 27606 | (919) 859-0669 |
| Edwin Andrews & Assoc Po Box 30653, Raleigh 27622 | (919) 783-8395 |
| Soil & Environmental Consultants 11010 Raven Ridge Rd, Raleigh 27614 | (919) 846-5900 |
| Neal C Floyd Jr & Assoc 7908 Audubon Dr, Raleigh 27615 | (919) 870-7865 |
| Ksat 4126 Lake Lynn Dr, Raleigh 27613 | (919) 676-0025 |