| Business | Phone |
| Niemi Property Svc Inc 2906 W Central Park Ave # 1, Davenport 52804 | (563) 388-9292 |
| Pcg/Maintenance Svc 1203 Jersey Ridge Rd 105, Davenport 52803 | (563) 324-4024 |
| Ryan Properties Inc 220 N Main St # 525, Davenport 52801 | (563) 322-9222 |
| Signature Management Co 1607 W 12th St, Davenport 52804 | (563) 322-2718 |