| Business | Phone |
| Western Plains Consulting Inc 120 N 3rd St # 260, Bismarck 58501 | (701) 221-3113 |
| Energy Recovery Systems 3163 Arizona Dr, Bismarck 58503 | (701) 323-0634 |
| Mc Cabe Consulting Inc 1800 E Capitol Ave # 353, Bismarck 58501 | (701) 222-1748 |
| Hpc Inc Environmental 107 W Main Ave # 350, Bismarck 58501 | (701) 255-6080 |