Stewart becomes head of WS's transport group today (1 July). He joins from LLM Communications, where he has worked for the past year as head of its in-house research and information team. He previously spent five years at Citigate Public Affairs as head of its political intelligence unit, developing transport and planning policies for clients in the rail, road and aviation sectors.
WS's previous top transport specialist, Cameron Jones, left two years ago to take up a position at The Waterfront Partnership.
Among Darling's proposals is a radical plan to introduce a pay-as-you-go road tax. WS's existing clients in the transport sector include London Underground maintenance firm TubeLines and Strathclyde Passenger Transport.
WS has also hired the Voluntary Euthanasia Society's head of parliamentary affairs, Jenny Saunders, as an account executive as it looks to step up its monitoring of MPs in the wake of Labour's reduced Commons majority.
WS Public Affairs MD Jon McLeod said she would 'deliver expertise to clients on parliamentary strategies'.