He worked for York Plc, Scottish Equitable and CIO before founding his own business, Neptune Investment Management in 2002.
The firm enjoyed strong early performance and pioneered a move to encourage UK and European investors to allocate assets towards rapidly-evolving emerging markets.
In the later years of the business concerns were raised about staff turnover, fund performance and family promotions within the organisation.
[3][4][5] Geffen remained with Liontrust in a Head of Global Equity role, although the Neptune brand was ultimately dropped.
Geffen owned the likes of Wonderful Charm a two time Grade 2 winner including the Persian War at Chepstow.