Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| Main Street Bank Corp. | Wooster, OH | 01-01-1899 | $1,413,034 | BK |
| TELHIO | Columbus, OH | 01-01-1935 | $1,392,450 | CU |
| The Merchants National Bank | Hillsboro, OH | 12-25-1879 | $1,381,954 | BK |
| DIRECTIONS | Toledo, OH | 01-01-1953 | $1,345,410 | CU |
| Guardian Savings Bank | West Chester, OH | 01-01-1895 | $1,341,864 | BK |
| Signature Bank, National Association | Toledo, OH | 04-02-2002 | $1,268,477 | BK |
| The Richwood Banking Company | Richwood, OH | 07-01-1867 | $1,253,300 | BK |
| The Commercial and Savings Bank of Millersburg, Ohio | Millersburg, OH | 01-01-1879 | $1,218,285 | BK |
| Liberty Savings Bank, F.S.B. | Wilmington, OH | 09-14-1984 | $1,212,048 | BK |
| The Union Bank Company | Columbus Grove, OH | 11-21-1904 | $1,194,392 | BK |
| The Croghan Colonial Bank | Fremont, OH | 07-25-1888 | $1,183,222 | BK |
| Consumers National Bank | Minerva, OH | 09-01-1965 | $1,133,281 | BK |
| First State Bank | Winchester, OH | 01-01-1934 | $1,074,112 | BK |
| The Citizens National Bank of Bluffton | Bluffton, OH | 01-13-1920 | $1,051,735 | BK |
| The North Side Bank and Trust Company | Cincinnati, OH | 01-01-1892 | $1,047,602 | BK |