| Business | Phone |
| Operating Engineers Local 49 1521 24th Ave S, Grand Forks 58201 | (701) 775-3969 |
| North Dakota Public Employees 311 S 4th St # 202, Grand Forks 58201 | (701) 775-2061 |
| Northern Valley Labor Council 1714 1/2 N Washington St, Grand Forks 58203 | (701) 772-7404 |
| Ibew 1714 N Washington St, Grand Forks 58203 | (701) 775-7601 |