Galliford Try Building North has won a £1m contract to strip-out and refurbish the eighth floor of the Royal Liver Building.
It follows the letting of the 28,000 sq ft office space to Pershing, a subsidiary of the Bank of New York Mellon.
CBRE brokered the 10-year lease on behalf of the building's owner, Royal London Asset Management.
The refurbishment will be undertaken by Galliford Try North's Special Projects team, who specialise in complex refurbishment and new build projects in the £50,000 to £2m value range.
The work is expected to be completed in 14 weeks.
Pershing, which already had a smaller base at the Royal Liver Building, was established in London in 1987.
It provides operational, IT, regulatory and investment support for private client firms and institutional broker dealers across Europe.
Dave Clarke, head of special projects for Galliford Try North, said: "Securing this contract is testament to the hard work and dedication that the Special Projects team has demonstrated over the last 12 months across the North West as we continue to deliver often complex projects safely in live environments on budget and on time to the highest quality across the region."
Royal London Asset Management has retained Cre8 to provide project management services for the refurbishment, while cost management is being provided by Gardiner & Theobald.
5plus is providing architectural and design services.
Galliford Try North's Special Projects team has recently delivered a single storey extension at Windmill Hill Primary School, Runcorn for Halton Borough Council and a £300,000 office refurbishment for Merseyside Probation Trust.
The company is currently on site with an extension and refurbishment of Lunts Heath Primary School in Widnes and the remodelling of Picton Medical Centre for LSHP.