| Relationships | Role | Relationship Start | Relationship End |
| Umpqua Holdings Corporation | Parent | 11/16/2002 | 11/16/2002 |
| Centennial Bancorp | Parent | 4/1/1982 | 11/15/2002 |
| Amvesco, Inc. | Subsidary | 12/31/1986 | 4/30/1987 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Umpqua Bank | Buyer | 24,730,514 | Acquisition | Discontinued | 11/17/2002 |
| Centennial Mortgage Co. | Seller | Pooling of Interests | Discontinued | 5/31/2001 | |
| Western Oregon Community Bank | Seller | 25,037 | Discontinued | 12/3/1994 | |
| Centennial Bank | Seller | 32,270 | Discontinued | 4/1/1982 |