| Business | Phone |
| Barbara H Mulkey Engineering 414 Fayetteville Street Mall, Raleigh 27601 | (919) 836-4800 |
| James A Bridger 2100 Sutton Dr, Raleigh 27605 | (919) 833-1661 |
| Edens Engineering Pc 6521 Creedmoor Rd, Raleigh 27613 | (919) 844-1321 |
| Esi Inc 5540 Mcneely Dr # 201, Raleigh 27612 | (919) 861-0093 |
| Ross Linden Engineers Pc 710 W North St, Raleigh 27603 | (919) 832-5680 |
| Rightmyer & Assoc 2008 Lacebark Ln, Raleigh 27613 | (919) 676-2262 |
| Joel Hobby 417 N Boylan Ave, Raleigh 27603 | (919) 831-2588 |
| Nanolytics Inc 5905 Triangle Dr, Raleigh 27617 | (919) 782-1722 |
| Natural Systems Engineering 3719 Benson Dr, Raleigh 27609 | (919) 878-5444 |
| Networks Group Inc 2320 Wakefield Plantation Dr, Raleigh 27614 | (919) 419-0887 |
| Weston Solutions Inc 4917 Waters Edge Dr # 235, Raleigh 27606 | (919) 424-0002 |
| Volkert & Assoc Inc 5540 Centerview Dr # 403, Raleigh 27606 | (919) 854-0344 |
| Walker Parking Consultants 1011 National Guard Dr, Raleigh 27623 | (919) 840-0300 |
| Venture Engineering 314 W Millbrook Rd # 5, Raleigh 27609 | (919) 676-0303 |