| Business | Phone |
| Carpenters Local Union 195 1001 Boyce Memorial Dr, Ottawa 61350 | (815) 433-1541 |
| Cwa 18 Bona Terra Dr, Ottawa 61350 | (217) 892-5558 |
| Glass Workers Local 19 519 W Madison St, Ottawa 61350 | (815) 434-0799 |
| Ibew 1001 Boyce Memorial Dr, Ottawa 61350 | (815) 434-1240 |
| Painters International Union 1001 Boyce Memorial Dr, Ottawa 61350 | (815) 431-9538 |
| Pipe Fitters # 597 1301 Canal St, Ottawa 61350 | (815) 431-2626 |
| Sheet Metal Workers Local 417 W Madison St, Ottawa 61350 | (815) 433-1047 |
| Uaw Pat Greathouse Ctr 1000 E Center St, Ottawa 61350 | (815) 433-2500 |