| Relationships | Role | Relationship Start | Relationship End |
| Bancsecurity Corporation | Parent | 7/18/1988 | 8/31/1999 |
| Blackhawk Bancorporation | Parent | 10/26/1982 | 7/17/1988 |
| K-S Banco Inc | Parent | 12/31/1981 | 10/25/1982 |
| K-S Banco Inc | Parent | 12/31/1980 | 12/30/1981 |
| K-S Banco Inc | Parent | 12/31/1979 | 12/30/1980 |
| K-S Banco Inc | Parent | 3/12/1973 | 12/30/1979 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| F&M Bank-Iowa Central | Buyer | 469,960 | Pooling of Interests | Discontinued | 9/1/1999 |
| American Federal Savings Association Of Iowa | Seller | 474,763 | Failure | 2/9/1991 |