Aon has acquired Wimbledon-based Needham Johnson, a broker that specialises in high net worth and fine art and antiques, for an undisclosed sum.

The firm will be merged within Aon Artscope and Aon Private Clients, and will be based at Devonshire House under the leadership of Jeremy Cary.

“The acquisition is highly complementary to our already successful Private Client/Artscope business but without doubt, the specialist skills and expertise of David Needham and Andrew Johnson will strengthen the business further,” said Peter Friend, chairman of Aon's Affinity Division.