The acquisition added six partners, 34 staff and a combined turnover of £10m to its London office.
Haines Watts said in a statement that the deal follows five years of growth and a commitment to support the business owner sector.
Matt Perry, Haines Watts London managing partner, said, “This deal combines two firms that have a similar culture, with practice strengths and sector expertise that are highly complementary. The extended team places us in a far stronger position to take advantage of the opportunities in the market and provide a significant alternative to the local competition.”
Keith Graham, managing partner at Westbury Accountants said the existing client base will benefit from Haines Watt’s innovation and growth in the market.
“We are now able to expand our service offering for clients across various new areas including legal services, corporate finance and strategic planning as well as broadening our traditional offering with more specialists to hand in areas such as VAT and tax planning.
“In turn, we bring an established capability in the art sector which complements the existing creative sector capability in the London office of Haines Watts.”
Haines Watts has a £74.5m turnover and a total of 100 UK partners.