Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| The Federal Savings Bank | Chicago, IL | 07-03-2000 | $1,225,235 | BK |
| First Bankers Trust Company, National Association | Quincy, IL | 10-23-1946 | $1,218,814 | BK |
| VIBRANT | Moline, IL | 01-01-1935 | $1,148,052 | CU |
| Bank of Pontiac | Pontiac, IL | 09-06-1947 | $1,123,645 | BK |
| ABBOTT LABORATORIES | Gurnee, IL | 01-01-0000 | $1,104,996 | CU |
| SELFRELIANCE | Chicago, IL | 01-01-1951 | $1,085,636 | CU |
| American Community Bank & Trust | Woodstock, IL | 03-13-2000 | $1,046,526 | BK |
| First Southern Bank | Marion, IL | 12-15-1937 | $1,043,916 | BK |
| 1ST MIDAMERICA | Bethalto, IL | 01-01-1934 | $1,034,492 | CU |
| Cornerstone National Bank & Trust Company | Palatine, IL | 10-16-2000 | $999,726 | BK |
| International Bank of Chicago | Chicago, IL | 10-26-1992 | $982,762 | BK |
| Belmont Bank & Trust Company | Chicago, IL | 06-14-2006 | $963,792 | BK |
| Servbank, National Association | Oswego, IL | 01-03-1994 | $932,297 | BK |
| First National Bank of Waterloo | Waterloo, IL | 06-12-1912 | $926,975 | BK |
| Farmers National Bank | Prophetstown, IL | 07-01-1902 | $903,411 | BK |