Global leaders of the market research industry include Nielsen Holdings (U.S.), Kantar (UK), IQVIA (formerly QuintilesIMS and IMS Health Holdings) (U.S.), Ipsos (France) and GfK Group (Germany). Nielsen, headquartered in New York City, was by far the largest market research company worldwide in terms of revenue in 2017. That year, the company’s revenue amounted to 6.57 billion U.S. dollars – almost twice that of its closest competitor, Kantar, with revenue of 3.85 billion.
The most common type of quantitative research conducted globally are online surveys, which in a 2017 survey were found to comprise over half of the quantitative research. In the same survey, phone and face-to-face interviews each accounted for nine percent. . However, geography makes a considerable difference on the type of research conducted. In 2017, over 60 percent of all market research spending in Pakistan, Kenya, Bolivia and Indonesia was for face-to-face research – considerably higher than the global average. Regarding qualitative research, in-person focus groups are the most common method, making up about a quarter of research conducted in 2017.