Mašínová (pictured) joins as global director for reputation intelligence and Aston as global head of research, digital advertising intelligence.

Mašínová will help clients develop a holistic understanding of their earned media impact in an increasingly digital environment. She has previously held senior positions at Isentia (Australia), Newton Media Group, McCann Consulting as well as government and major corporations in London, Amsterdam and her native Czech Republic. She will be based in Paris.

Aston will be responsible for developing the frameworks and methodologies required for Kantar’s digital advertising offer, giving paid advertising intelligence across desktop, mobile, video, social, search and e-commerce search in 15 countries.

He was previously at Havas Media, where he led a team delivering strategic and tactical insight to a broad spectrum of agency and client teams across research, buying, planning, strategy, new business and digital analytics departments. Aston will be based in New York.

Richard Asquith, chief product officer, media division, Kantar, said: “We are thrilled to welcome Petra and Gregory to Kantar. Their experience and achievements are recognised across the industry and they will be a considerable asset to our talented global team of media research experts.”