Oliver Haarmann is a founding partner of Searchlight Capital, a private equity firm.
He also sits as chairman of the board of Hunter Boot Ltd, the clothes retailer, and is also a board member of Ocean Outdoor, a boutique media company. Before founding Searchlight, Haarmann was a partner at KKR of London, a capital investment management firm. 
- Donated £7,508.50 on 13 April 2016 to Britain Stronger in Europe, the lead pro-EU campaign in the UK's EU membership referendum on 23 June 2016. 
Recorded by the Electoral Commission:
|Date||Name of donor||Amount||Donated to|
|13/04/2016||Mr Oliver Haarmann||£7,508.50||Britain Stronger in Europe|
|03/05/2016||Mr Oliver Haarmann||£12,000.00||Britain Stronger in Europe|