| Relationships | Role | Relationship Start | Relationship End |
| Southgate Banking Corporation | Parent | 5/9/1986 | 2/12/1993 |
| Serco Investment Company | Parent | 12/31/1970 | 8/1/1978 |
| Southgate Financial Center, Inc. | Subsidary | 12/31/1970 | 2/12/1993 |
| Sg Company | Subsidary | 8/25/1988 | 2/12/1993 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Bank Iv, National Association | Buyer | 4,597,631 | Discontinued | 2/13/1993 |