| Relationships | Role | Relationship Start | Relationship End |
| Bmo Harris Bank National Association | Parent | 7/6/2011 | 5/31/2012 |
| Marshall & Ilsley Corporation | Parent | 1/2/2010 | 7/5/2011 |
| M&I Llc | Parent | 6/30/2007 | 1/1/2010 |
| M&I Llc | Parent | 2/12/1973 | 6/29/2007 |
| Tch Mi Holding Company, Inc. | Subsidary | 12/3/2008 | 5/31/2012 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Bmo Asset Management Corp. | Buyer | Discontinued | 6/1/2012 | ||
| Heritage Investment Advisors Inc | Seller | Discontinued | 7/10/1985 |