| Business | Phone |
| Hydraulic Component Svc Inc 2232 Se 14th St, Des Moines 50320 | (515) 243-0904 |
| Williams Wilbert Vault Works 3420 Sw 9th St, Des Moines 50315 | (515) 244-6533 |
| Vasco Sprinkler Co Des Moines 50309 | (515) 282-9399 |
| Visionary Services Inc 300 E Locust St 250, Des Moines 50309 | (515) 369-3545 |