| Business | Phone |
| Advanced Engineering 2020 Sherman Dr, Bismarck 58504 | (701) 226-0595 |
| Bartlett & West Engineers Inc 3456 E Century Ave, Bismarck 58503 | (701) 258-1110 |
| Building Systems Engineering 129 E Arikara Ave, Bismarck 58501 | (701) 255-3858 |
| North Central Consultants Ltd 107 W Main Ave # 350, Bismarck 58501 | (701) 258-7077 |
| Metzger Engineering 1118 W Avenue B, Bismarck 58501 | (701) 258-7227 |
| Midwest Testing Laboratory Inc 1805 Hancock Dr, Bismarck 58503 | (701) 258-2833 |
| K J Schwartz Engineering Inc 233 W Rosser Ave, Bismarck 58501 | (701) 222-0520 |
| Kadrmas Lee & Jackson 3237 E Broadway Ave, Bismarck 58501 | (701) 355-8400 |