The agency is yet to replace Bowman and it is not known whether she has a new job lined up. She is currently serving out a three-month notice period and will leave the London office of the WPP-owned agency in May.
Burson-Marsteller's UK CEO Jonathan Jordan confirmed Bowman's departure, adding that he would be seeking an external replacement.
Following a recent internal restructure, Bowman was named one of nine directors on the UK leadership team, helping to run Burson-Marsteller's corporate division as well as taking responsibility for the agency's tech clients.
She joined Burson-Marsteller from GolinHarris in 2005, having led the rival agency's corporate and technology practice.
Before her six-year stint at GolinHarris, Bowman worked at fellow Interpublic subsidiary Weber Shandwick, where she was associate director for a year.
A qualified barrister, Bowman started her PR career at The Richbell Group, which famously collapsed in the late 1990s.
Bowman failed to return PRWeek's calls.