Christian Purslow to leave Chelsea at the end of the season
The former Liverpool man, who held a similar role at Anfield, has been at Chelsea since October 2014 and has overseen a number of significant commercial deals.
During his time at Stamford Bridge, the Blues have secured a £60m-a-season deal with Nike – which starts next term – and a £40m-a-year shirt sponsorship with Japan's Yokohama Rubber.
Chairman Bruce Buck said of the 53-year-old: "Christian joined us in 2014 with the goal of transforming our commercial activities.
"Under his leadership some of the world's finest brands and companies have joined us and we have announced some record-breaking sponsorships.
"Christian will continue to work with the club in a transition period until the end of the season.
"We are very grateful for his contribution and he will always be welcome at Stamford Bridge."
Purslow added: "I am proud of what we have all achieved, with Chelsea now enjoying great success off the field as well as on it and a commercial team in place to help cement Chelsea's position at the top of the game."