The newly merged entity, entitled QBO-Bell Pottinger, sees BPPR chief executive Shimon Cohen leave after two-and-a-half-years to return to Bell Pottinger Consultants as a director.
'I wanted to get back to new business and away from the day-to-day management and administration of running a consultancy,' said Cohen.
QBO chairman Trevor Morris has been named chairman and CEO of the merged agency. BPPR deputy chairman Tricia Moon remains in the new structure with the same title.
Morris said the merger enables both businesses to achieve their growth aims and strengthen existing offerings: 'This is not about redundancies and there will be none. The merger gives us critical mass and an opportunity to grow.'
BPPR brings expertise in sport, travel, FMCG and international work while QBO brings strength in corporate, B2B, financial services, media training and the public sector, said Morris.
Morris added there were no client conflicts resulting from the merger.
Chime also this week announced the rebranding of its tech PR business Chime Online as Harvard Communications.
The newly named firm comprises agencies including Harvard PR, Insight Marketing and Communications and Harvard Health.