| Business | Phone |
| Audits Div 321 E 12th St, Des Moines 50319 | (515) 281-5686 |
| Racing & Gaming Commission 717 E Court Ave B, Des Moines 50309 | (515) 281-7352 |
| Revenue & Finance Dept 1305 E Walnut St, Des Moines 50319 | (515) 281-3114 |
| Management Dept 1007 E Grand Ave 12, Des Moines 50319 | (515) 281-3322 |
| Management Dept Appeal Board Capitol Bldg 12, Des Moines 50319 | (515) 281-5512 |
| State Treasurer 1007 E Grand Ave 114, Des Moines 50319 | (515) 281-5368 |