| Business | Phone |
| Avan Systems Engineering Inc Des Moines 50311 | (515) 279-2400 |
| Mid-State Distributing Co 2600 Bell Ave, Des Moines 50321 | (515) 244-7231 |
| Brunia-Johnson Electric Supply 524 Se 5th St, Des Moines 50309 | (515) 244-5166 |
| Graybar Electric Co 600 E 4th St, Des Moines 50309 | (515) 243-8611 |
| Consolidated Elec Distrib 1901 E University Ave, Des Moines 50316 | (515) 265-8121 |
| Crescent Electric Supply Co 313 Sw 5th St, Des Moines 50309 | (515) 283-2331 |
| Integrated Systems & Controls 3816 36th St 204, Des Moines 50310 | (515) 289-1654 |
| Van Meter Industrial 1751 Guthrie Ave, Des Moines 50316 | (515) 262-9609 |
| Wesco Distributing Inc 2301 Fleur Dr, Des Moines 50321 | (515) 244-8611 |