Gilfeather has spent 40 years in the research industry, including a 30-year spell with Yankelovich where he last served as managing partner. From there he went on to work for Roper Public Affairs before setting up his own firm, John Gilfeather & Associates, in 2009.

As well as his commercial work, Gilfeather is a past chair of the Council of American Survey Research Organisations (Casro), past president of the Market Research Council (MRC) and a founding member of the Institute for Public Relations Commission on Measurement and Evaluation.

Koski Research founder and president Lilah Koski said: “John is a superb researcher with deep and broad experience in the areas we want to emphasise. Our approach is about crafting research studies that begin with a focus on great questions. John’s skills are an excellent fit.”