Sledge has worked with O2 for the past 11 years, and the win follows a competitive pitch involving multiple rounds.
The contract covers the delivery of both internal and external events, management of areas at The O2, rugby sponsorship activations and partnership activations, such as O2’s involvement with charity the NSPCC.
Nic Cooper, chief executive at Sledge, said: "We have a brilliant relationship with O2 that has been built over the last decade, but it was a competitive pitch so the re-appointment certainly wasn’t a given. This appointment strengthens our belief that long-term relationships are extremely beneficial for everyone; the agency develops a fuller understanding of the client, the organisation and the brand so they feel like a natural extension of the team.
"There’s also an understanding of what has been achieved before and what will be well received, so no time is wasted in putting ideas forward that will never work. A solid relationship also creates a higher level of trust, so the agency knows which way the boundaries can be pushed in order to develop some truly amazing events."
John Worthington, head of events at O2 added: "Going out to pitch every few years is time consuming but essential in ensuring we are working with the very best agencies in the industry.
"O2 is the marketing society brand of the year, this does not come easy without absolute through the line excellence. Sledge plays an important part in that mix for us. We are working in an ever-competitive world and we require our agencies to help the brand stay at the forefront of consumers’ minds. This can only be achieved through original and thought provoking work that is flawlessly implemented."
Sledge announced its acquisition of film production company The Bigfoot Project, as well as two new recruits at the end of last month.
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