| Business | Phone |
| Afscme Local 2984 231 N 13th St, Marshalltown 50158 | (641) 752-2778 |
| Ufcw Local 1149 302 N 2nd St, Marshalltown 50158 | (641) 752-0464 |
| United Auto Workers 411 Iowa Ave W, Marshalltown 50158 | (641) 752-0685 |
| United Food & Commercial Wrkrs 8 N 1st Ave, Marshalltown 50158 | (641) 752-0464 |