Butler, who is business development director of Zibrant LIVE, joined the agency in 2010 after five years at World Events, now known as Ashfield Meetings & Events. She will now be replaced by Mark Glyne-Jones.
Butler is to officially leave the agency at the end of August and plans to set up a creative production and engagement agency with Marc Lewis, who will be technical director of the company.
Butler told C&IT: "I have thoroughly enjoyed my time at Zibrant and have been nothing but supported and nurtured by some great people over my years there. They are making a great success of Zibrant LIVE and I will enjoy watching it flourish from a distance. It’s now my time, after 16 years to look at creating my own exciting venture in the industry."
"These are exciting times in our company; the launch of Zibrant LIVE means that we are championing creativity through production services, thereby giving maximum value and brand engagement to our clients and their live event programmes.
"Mark Glyne-Jones will now be heading up our creative services and joins us with 25 years of experience in the creative marketing arena. As creative director Mark comes with unrivalled expertise and has worked across automotive, FMCG and professional service brands."
Last month, Three appointed Zibrant LIVE on an exclusive two-year contract to deliver incentive programmes for the mobile network's UK and overseas employees.