Women dominate the top three spots in this year's list and they also make up more than half of the top ten.
A new entrant this year is Elliot Dunster, who was promoted to become comms chief for the influential ABPI trade association in January.
Dunster’s previous career has seen him work in Parliament, as well as with charities; a background that should serve him well in his current role.
Another new entrant to the Top Ten is WPP's international head of health, Claire Gillis, who has over a 1,000 people who report in to her globally.
Click here to see the full Top 10 in healthcare & pharma comms
More from the 2019 Power Book:
PRWeek UK Power Book 2019: New Tesco comms chief leads retail top 10
PRWeek UK Power Book 2019: Top ten in corporate & financial comms (agency)
PRWeek UK Power Book 2019: Top ten in consumer comms (agency)
Who's in? PRWeek launches UK Power Book and lists lead players in each sector
