| 2006 | - | Rights issue to fund international expansion |
| 2005 | - | Name change to Arbuthnot Banking Group, move to AIM |
| 2003 | - | Old Mutual Securities acquired and re-branded as Arbuthnot Securities. |
| 1990s | - | Ongoing development of brand and acquisitions, with Peoples Bank and Aitken Hume Bank being the most significant |
| 1991 | - | Arbuthnot Latham and Arbuthnot Fund Managers acquired by Secure Trust Banking Group |
| 1988 | - | Secure Trust Banking Group floated |
| 1985 | - | MBO of Secure Trust Banking Group by Henry Angest
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