Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| OUCU FINANCIAL CREDIT UNION, INC. | Athens, OH | 01-01-1955 | $485,123 | CU |
| RIVER VALLEY | Miamisburg, OH | 01-01-1949 | $470,939 | CU |
| Osgood Bank | Osgood, OH | 01-01-1915 | $470,272 | BK |
| FIRELANDS | Bellevue, OH | 01-01-1957 | $470,104 | CU |
| Buckeye State Bank | Powell, OH | 01-01-1885 | $466,560 | BK |
| CME | COLUMBUS, OH | 01-01-1935 | $449,627 | CU |
| Ohio State Bank | Bexley, OH | 04-22-2019 | $449,315 | BK |
| The Farmers Bank and Savings Company | Pomeroy, OH | 12-04-1904 | $441,669 | BK |
| CENTURY | Independence, OH | 01-01-1948 | $433,182 | CU |
| First National Bank in New Bremen | New Bremen, OH | 01-01-1934 | $432,738 | BK |
| UNIVERSAL 1 | Dayton, OH | 01-01-1937 | $418,322 | CU |
| The St. Henry Bank | St. Henry, OH | 01-05-1905 | $396,117 | BK |
| CANTON SCHOOL EMPLOYEES | Canton, OH | 01-01-1938 | $392,664 | CU |
| The First Citizens National Bank of Upper Sandusky | Upper Sandusky, OH | 12-01-1902 | $370,739 | BK |
| IH CREDIT UNION, INC. | SPRINGFIELD, OH | 01-01-1934 | $353,713 | CU |