She will work alongside long-serving Ash director Carys Thomas Ampofo, who is shortly going on maternity leave. Sarewitz declined to say which clients she would be advising at Ash but said the agency was close to sealing various undisclosed new-business contracts that she would seek to ‘bed down'.
Sarewitz left B-M last month (PRWeek, 7 September) after more than four years with the WPP agency.Prior to joining B-M, Sarewitz - who hails from New England - was comms manager at Oxford BioSignals, a company spun out of Oxford University. Previous to that she spent 18 months working for pharma marketing consultancy TAE Associates in London's Tavistock Square.
She was formerly at Blackwell Healthcare.
Sarewitz told PRWeek that at Ash she was looking forward with ‘relish' to ‘being back in a smaller agency environment'.
Ash Communications was set up by Sue Ash, who remains CEO, 13 years ago, and is based in London's Soho. Its healthcare team has six staff, although the agency employs around 20 people.
Aside from healthcare, the company specialises in property PR, B2B clients and consumer campaigns.
The eponymous founder described Sarewitz's appointment as a ‘key marker' in the agency's ‘long-term growth plans'.
Sarewitz said it was likely that she would be recruiting for more junior positions, but new business would first need to be secured.