Maguire, a former senior lobbyist at FD, will link up with former colleagues including ex-Liberal Democrat media aide Mark Webster, who will become an associate in the new set-up.
Maguire's other associates include former ITN political correspondent and rail PR veteran, Rupert Brennan Brown, and the ex-head of communications at Crown House Technologies, Mad-eleine Kavanagh.
The new agency will be called Tony Maguire Associates and will specialise in providing high-level advice
to clients in the City, infrastructure and the built environment industries.
Maguire said he had already secured two major launch clients.
Maguire is a former national newspaper industrial correspondent. He joined Laing O'Rourke in January 2007 from FD, where he was MD of its commercial property arm FD Tamesis.
Before FD, Maguire was London Underground's first board-level director of communications and corpor-
ate and regulatory affairs director at British American Tobacco.
Maguire leaves his current role this week. He said the time was ripe for him to set up his own shop: ‘The overarching lesson of the City crash and the disasters that have hit so many is the measurable worth of individual CEO reputations - yet platoons of them are still marching around blundering into basic errors.'
He added: ‘With hundreds of new MPs landing in Westminster any day now, the difference between commercial success and failure has never depended as much as now on reputation.'