The drugs firm is establishing a ten-strong team to improve its global comms, headed by vice-president of global media Phil Thomson.
Among the new recruits, it has this week snared Home Secretary Alan Johnson's special adviser Jo Revill. A former Observer journalist, she joins as director of media for global product and pipeline news.
Revill will be responsible for managing news flow and media coverage around GSK's products and pipeline.
She began working for Johnson in his previous role as secretary of state for health.
Along with Mario Dunn, Revill is currently one of the Home Secretary's two top advisers. Before working for Johnson, Revill was Whitehall editor and health editor at The Observer.
At GSK, Revill will work alongside Stephen Rea, who has been promoted to director of media for global public health and responsibility news. He was previously a director of government affairs and policy for GSK UK.
Claire Brough has also been promoted to the role of director of media for global news strategy, working closely with Thomson to generate positive media coverage in GSK's operating markets.
Former Cadbury global head of financial communications Alex Harrison joined GSK last year as a director of media for global financial and corporate news (PRWeek, 15 May 2009).
The team will also be made up of representatives from key parts of the business and GSK's regions including research and development, consumer, vaccines, USA, Europe and Asia Pacific.
Revill is the second special adviser to leave Labour's ranks in recent months. Last year, it emerged that one of Foreign Secretary David Miliband's closest special advisers, Sarah Schaefer, was quitting.
Schaefer joins confectionery giant Mars this month in the role of sustainability and science communications director (PRWeek, 15 December 2009).