| Relationships | Role | Relationship Start | Relationship End |
| Associated Banc-Shares, Inc. | Parent | 4/6/1996 | 3/19/1998 |
| Greater Columbia Bancshares, Inc. | Parent | 6/30/1985 | 4/5/1996 |
| Greater Columbia Bancshares, Inc. | Parent | 6/30/1984 | 6/29/1985 |
| Asbc Investment Corp-Portage | Subsidary | 4/10/1996 | 3/19/1998 |
| Portage Investments, Inc. | Subsidary | 12/27/1990 | 4/10/1996 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Associated Bank South Central | Buyer | 974,831 | Pooling of Interests | Discontinued | 3/20/1998 |
| The First National Bank Of Columbus | Seller | 61,946 | Discontinued | 3/1/1994 | |
| Peoples State Bank | Seller | 34,636 | Discontinued | 4/1/1992 | |
| Arlington State Bank | Seller | 8,946 | Discontinued | 1/1/1987 |