The firm, which is working on the redevelopment of London's Victoria Station, has called in Smithfield director Reg Hoare to lead financial comms around the float, through which it hopes to raise £70m.
Scott Wilson wants to use the money to fund acquisitions and hopes to complete its listing next month.
Transport accounts for around 60 per cent of Scott Wilson's business. Its other projects have included help with the construction of a runway and terminal at Manchester Airport, and advice on the Eden Project.
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