UK managing director Andrew Magowan said Sea Dream would announce a new director of corporate sales, to focus specifically on the C&I market, shortly.
"Corporate sales has traditionally been very successful for Sea Dream. Post-2008 business was tough, but it is definitely coming back. We are looking at putting a plan in place to grow the company globally," he said.
Buckeridge, who worked at Sea Dream for nine years, said: "I have much enjoyed my time as part of a happy team and following a recent restructure have decided the time is ripe to move on."