Addleshaw Goddard advises accountancy powerhouse BHP on partnership with Sumer

International law firm Addleshaw Goddard has advised leading Yorkshire-based accountancy and advisory firm BHP on its deal to join the Sumer Group.

The move, one of the biggest accountancy sector deals of the year, will see BHP bring more than 420 people across its five offices - Sheffield, Leeds, York, Cleckheaton and Chesterfield – to Sumer, a leading mid-market accountancy practice in the UK and Ireland, delivering professional support to small and medium-sized enterprises (SMEs). The deal is the largest independent practice to join the Sumer national group in 2025. 

BHP delivers an integrated full-service offering across assurance, advisory, tax and corporate finance, and generated £37 million in annual fee income. Sumer has grown rapidly through both acquisition and organic growth and now has more than 3000 people across over 60 offices, with annual revenue of more than £265m.

The Addleshaw Goddard team advising BHP on the deal was led by Partner Paul Medlicott and included Daniel Conway, Ben Davies, Ted Hendey and Matt Campbell. 

Hamish Morrison, Joint Managing Partner at BHP, said: "Joining Sumer Group is a significant milestone in BHP’s continued growth journey. The Addleshaw Goddard team provided outstanding support throughout the transaction with their extensive expertise, experience and client-focused approach evident at every stage, enabling a smooth and successful outcome for BHP."