Consulting by Kantar | 77,987 followers on LinkedIn. Kantar, the world’s leading marketing data and analytics company. | Kantar is the world’s leading marketing data and analytics company. We have a complete, unique and rounded understanding of how people think, feel and act; globally and locally in over 90 markets. By combining the deep expertise of our people, our data resources and benchmarks and our innovative analytics and technology, we help our clients understand people and inspire growth.