| Business | Phone |
| First Federal Savings Bank 433 W Main St, Ottawa 61350 | (815) 434-2193 |
| First Federal Savings Bank 633 La Salle St, Ottawa 61350 | (815) 434-3500 |
| First National Bank-Md 2771 Columbus St, Ottawa 61350 | (815) 434-2265 |
| First National Bank-Md 300 W Madison St, Ottawa 61350 | (815) 434-1070 |
| First National Bank Of Ottawa 601 State St, Ottawa 61350 | (815) 434-0044 |
| First State Bank 1212 La Salle St, Ottawa 61350 | (815) 433-3727 |
| Old Second Bank-Yorkville 323 E Norris Dr, Ottawa 61350 | (815) 433-4433 |
| Ottawa Savings Bank 925 La Salle St, Ottawa 61350 | (815) 433-2525 |
| Union Bank 122 W Madison St, Ottawa 61350 | (815) 434-3900 |
| Union Bank Insurance Group 119 W Jefferson St, Ottawa 61350 | (815) 431-2900 |
| Unionbank 401 E Mckinley Rd, Ottawa 61350 | (815) 431-2773 |