| Business | Phone |
| Avioimage Mapping Svc Inc 4455 Morris Park Dr # B, Charlotte 28227 | (704) 573-7080 |
| Sanborn Llc 2925 E Independence Blvd, Charlotte 28205 | (704) 347-4552 |
| Independent Mapping Consultant 8037 Corporate Center Dr # 300, Charlotte 28226 | (704) 540-0087 |