Commercial property consultancy Lambert Smith Hampton has confirmed the acquisition of ES Group.
ES Group, formerly called Edward Symmons, employs 260 people including in Manchester and Liverpool offices.
A spokesman for LSH said: "We are committed to growing our business by retaining and developing our capabilities. There will be a review of the combined business to determine where we prioritise our investment."
The firm specialises in valuation and corporate recovery advice to banks and accountancy firms and is also at the forefront of the fast-growing alternatives market, particularly in hotels, healthcare and education.
Abid Jaffry, head of office for LSH in Manchester, said "The acquisition represents a highly complementary offer to our existing 75 strong operation in the North West. It will give us new service lines and provide additional skill sets which will add value to existing clients and help us in our quest to grow and capture more market share.
"We are investing significantly in the business and the North West is a key part of the growth strategy."
Ezra Nahome, chief executive of Lambert Smith Hampton, said: "We are on a mission to build the nation's most progressive commercial property agency, and are investing in areas where we believe we can add value for our clients. Bringing ES Group into the Lambert Smith Hampton fold is aligned with this objective, enabling us to enter important markets and fast track our investment in priority services.
"Bringing together ES Group's highly skilled consultancy teams with our established agency and transactional specialisms makes for a powerful combination. The addition of ES Group enables our clients to access alternative sectors and accelerates our planned investment, particularly in our rating, building consultancy and valuation teams.
"The acquisition reinforces our commitment to the UK regions, building on our existing national offer and strengthening our presence in markets such as the North East. In this regard, it is a natural follow-up to our acquisition of BTWShiells last summer, which expanded our footprint into Northern Ireland."
LSH is based in 3 Hardman Street, Manchester. ES Group is in Bruntwood's Riverside, Manchester and also 5 St Paul's Square, Liverpool.