| Business | Phone |
| International Longshoremen's 6031 Us Highway 20, Portage 46368 | (219) 764-9715 |
| International Longshoremen's Port Of Indiana, Portage 46368 | (219) 787-9189 |
| Sheet Metal Workers Local 20 6450 Ameriplex Dr # A, Portage 46368 | (219) 764-1900 |
| United Steelworkers Of America 2519 Portage Mall, Portage 46368 | (219) 762-4433 |
| United Steelworkers-America 2576 Portage Mall, Portage 46368 | (219) 763-2121 |
| United Transportation Union 2764 Willowdale Rd, Portage 46368 | (219) 764-4105 |