Agencies on the London Mayday Collective website, under the heading ‘corporate scum’ included Hill & Knowlton, Burson-Marsteller and Christow Consultants.
B-M, which has been named a target before, is opening it doors for ‘business as usual’, as are H&K and Christow.
B-M chief executive Allan Biggar sought to play down the level of threat: ‘We have been in touch with the authorities, and they seem to think the threat is pretty low.’
H&K UK chairman David McLaren said: ‘We are taking precautions on the basis of advice from the police.’
Christow, which employs just 11 staff, was shocked to learn of its inclusion on the list. ‘We are confident our approach to client work and our behaviour is open and ethical,’ said CEO Andrew Butcher.
Christow’s clients include the rail arm of AEA Technology, the privatised arm of the Atomic Energy Authority.