Williams joins from Hill & Knowlton where he worked for almost three years, most recently as senior account manager.
Williams will initially handle European PR for the forthcoming launch of Shire’s end-stage renal disease drug Fosrenol, which received approval from the Food and Drug Administration in the US just last week.
He reports to Resolute joint-MD and founding partner Anna Korving.
The hire brings the agency’s headcount to 22, after less than three years in business. Korving said: ‘We have added significantly to our team this year to keep pace with strong organic growth.’