Irwin Mitchell has added private wealth specialist Berkeley Law to its growing list of subsidiary businesses as the firm looks to take advantage of the Mayfair-based boutique’s roster of high-net-worth clients.

Berkeley, which was set up in 2010, is the sixth business Irwin Mitchell has acquired since gaining an Alternative Business Structure (ABS) licence two years ago. The previous acquisition was a tie up with FTSE 250 insurer esure in August.