| Business | Phone |
| Columbia Engineering & Svc 2763 Meadow Church Rd 100, Duluth 30097 | (770) 925-0357 |
| Busbee Surveying Co 3348 Duluth Highway 120, Duluth 30096 | (770) 497-9866 |
| Carter Land Surveyors & Plnnrs 2780 Peachtree Industrial Blvd, Duluth 30097 | (770) 495-9793 |
| Grant Shepherd & Assoc 3751 Venture Dr 205, Duluth 30096 | (770) 418-9823 |
| Gresham Planning & Development 2256 Buford Hwy, Duluth 30097 | (770) 623-8596 |