| Business | Phone |
| K M Armstrong Assoc Inc 1111 The Plz, Charlotte 28205 | (704) 366-1776 |
| Mc Gavran Engineering 841 Baxter St # 104, Charlotte 28202 | (704) 347-4906 |
| United Engineering Group Inc 5624 Executive Center Dr # 200, Charlotte 28212 | (704) 945-3340 |
| Teeter Engineering Group 4059 Yancey Rd # A, Charlotte 28217 | (704) 376-2999 |
| Progressive Engineering Inc 4700 Lebanon Rd # D, Charlotte 28227 | (704) 545-7327 |
| Rdh Consultants Inc 222 Westinghouse Blvd # 505, Charlotte 28273 | (704) 588-6538 |
| Siemens Westinghouse 4424 Taggart Creek Rd # 105, Charlotte 28208 | (704) 391-3660 |
| Haas & Kennedy Engineers Pc 212 N Mcdowell St # 100, Charlotte 28204 | (704) 333-6590 |
| Ite 2115 Rexford Rd, Charlotte 28211 | (704) 364-2306 |