Glastonbury Festival has split from its promoters of the last 10 years, Festival Republic.
A joint statement announced: "Time moves on and now is the time for Michael and the Glastonbury team to pick up the reins again and build for the future."
Festival Republic, run by Melvin Benn, is behind other major music events including Reading and Leeds.
When they started working together in late 2001 they introduced stricter ticketing and the £1m 'super-fence' surrounding the whole site, designed to keep gatecrashers out.
Since then the festival has developed an annual capacity of 177,500 people.
The split will then allow Festival Republic to focus on their own events.
The separation was "mutual and cordial", both parties said.
Michael Eavis said: “Melvin definitely earned his stripes running the gates for us during the Eighties. This was a difficult time dealing with the closure of Stonehenge, the Battle of the Beanfield and the travellers and my attempts to accept them here at Worthy Farm was exciting but very challenging.
“We both learnt a lot about festivals then, and Melvin and I have managed to put together what is the Glastonbury we have now.
“I’ll be sorry to see him go but he has masses of responsibility with all of his shows across the world and now is a good time to part company. I’ve got just about the best team in the business and Emily and Nick are heading up the next generation to take on
more responsibility as well.
“Looking across the farm at the moment I think we were very lucky to choose a good wet year to take out - amazing bit of luck!
“See you all next year with a very promising line-up.”
Mr Benn, who also recently became Chairman of Wembley Stadium, will oversee the change and the
selection of the new operations director, who is yet to be appointed.
He said: “From an operational point of view, myself and my team have taken the Festival as far as I can and it is time for a change I think. It has been a wonderful journey with Michael but Latitude, Berlin, Hove and Electric Picnic, none of which existed in 2002, are my priorities, alongside maintaining Leeds and Reading as the bastions of
the festival calendar they are, not to mention my demands at Wembley.
“That said I am committed to ensuring as smooth a handover as possible to the new
team in Pilton and enjoying Glastonbury for many years to come as a festival goer