The acquisition is expected to increase Irwin Mitchell assets under management to £1.2bn.

Andrews Gwynne is an independent private wealth management firm, founded in 1979, providing bespoke discretionary portfolios with tailored financial advice.

Mark Smith, current partner at Andrews Gwynne, will join Irwin Mitchell Asset Management as head of the team and will report directly to CEO Richard Potts.

Irwin Mitchell said the deal will strengthen its Financial Planning expertise as well as adding specialist investment management capacity and capability.

Richard Potts, CEO of Irwin Mitchell Asset Management, said: “The addition of the Andrews Gwynne team gives us the opportunity to attract more clients from outside of Irwin Mitchell who come direct for our wealth management and investment planning services – as well as adding capacity and capability for existing Irwin Mitchell clients.”

The acquisition is the latest of several for the legal and financial services provider.

In May last year the firm acquired Cheshire-based Chartered Financial Planning firm TWP Wealth for an undisclosed sum. The deal brought in £100m in assets under management.

Irwin Mitchell also recently opened two new offices in Cardiff and Liverpool.

The law firm, one of the largest in the UK, launched its wealth management service in 2000 to provide Financial Planning and investment management to personal injury clients receiving large settlements.

From 2017 Irwin Mitchell Asset Management widened its remit from focusing mainly on personal injury clients to offer wealth management to other wealthy individuals, investors and external clients such as business owners and charities.