A selected number of agencies are set to pitch next month for the work, thought to have halved in budget as part of planned growth in the company's in-house capacity. It is understood to have previously been worth £10,000 per month.
Eulogy has declined the chance to compete for the account after almost four years working on it.
Viagogo has experienced rapid growth since its launch in 2006, and was claimed by its founder Eric Baker recently to be selling around $500m worth of tickets across 50 countries annually.
However, like its rivals it has come under fire for being a platform for "scalping", whereby online touts buy up large amount of tickets and sell them at inflated rates.
A source close to the brief said that though this would not form part of the day-to-day PR effort, it would likely play a role in longer-term comms.
Emphasising that the notion of security would form part of telling a more positive story, they said: "A big focus will be on showing that it has the best tickets available, with an emphasis on security and showing all tickets are real."
A spokesperson for Viagogo said: "The company’s communications priorities are becoming more internationally focused to reflect the rapid international expansion of the business, and the in-house communications team is expanding accordingly. There will therefore be a change in UK PR agencies from January 2014."
Last year the company poached Matthew Freud’s right-hand man Oli Wheeler to head up its international comms.
It finished working with Freuds, which had handled corporate work since the company’s launch, at the end of 2012.