According to the Campaign Against Arms Trade (CAAT), Clarion Events organises a number of major events in the arms trade, including the DSEI arms fair, which will take place at Excel, London in September, hosting more than 1,000 arms companies. CAAT claims the companies in attendance facilitate weapons sales to countries in conflict and repressive regimes.
Stop the Arms Fair campaigner Anne-Marie O'Reilly said: "We brought our protest to the offices today to put it on notice: Arms fairs are not legitimate events and those who profit from them will face criticism, brand damage and disruption until they end their role in the arms trade."
Last year, The Sunday Times revealed that Clarion Events had been struggling to find a buyer due to its involvement in the arms business.
O'Reilly added: "Arms fairs export the tools of death and repression around the world. Providence Equity's new investment fuels war in pursuit of profits."
C&IT has contacted Clarion Events for comment.