Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| Republic Bank of Chicago | Oak Brook, IL | 12-01-1964 | $2,826,978 | BK |
| Libertyville Bank & Trust Company, National Association | Libertyville, IL | 10-10-1995 | $2,690,486 | BK |
| Lakeside Bank | Chicago, IL | 04-01-1966 | $2,609,396 | BK |
| Beverly Bank & Trust Company, National Association | Chicago, IL | 04-01-2004 | $2,451,665 | BK |
| FCB Banks | Collinsville, IL | 07-09-1990 | $2,413,546 | BK |
| INB, National Association | Springfield, IL | 01-01-1905 | $2,326,040 | BK |
| Schaumburg Bank & Trust Company, National Association | Schaumburg, IL | 01-22-2001 | $2,206,464 | BK |
| I. H. MISSISSIPPI VALLEY | Moline, IL | 01-01-1936 | $2,167,977 | CU |
| Marquette Bank | Chicago, IL | 05-12-1945 | $2,139,211 | BK |
| State Bank of the Lakes, National Association | Antioch, IL | 01-01-1926 | $2,133,018 | BK |
| Signature Bank | Rosemont, IL | 08-04-2006 | $2,017,871 | BK |
| EMPEOPLE | Moline, IL | 01-01-1935 | $1,947,442 | CU |
| CREDIT UNION 1 | Lombard, IL | 01-01-1958 | $1,921,187 | CU |
| First Bank Chicago | Highland Park, IL | 07-16-1955 | $1,895,005 | BK |
| Blackhawk Bank & Trust | Milan, IL | 06-28-1961 | $1,825,402 | BK |