For more than 30 years, Jonathan has been at the vanguard of the rediscovery of Modern British Art from his gallery in London's Park Walk, Chelsea.

In 2018 Jonathan was joined by his two sons Adam and Benjamin when the business relocated to a mews house in a private square in Clapham, where they may be visited by appointment only. 

The company continues to trade from its extensive inventory of paintings and sculpture as well as representing the estates of a number of leading twentieth century Modern British artists, such as, Ivon Hitchens, Kenneth Armitage and Ceri Richards alongside St. Ives artists Roger Hilton, John Wells and Bryan Wynter.