The International Council of Management Consulting Institutes (ICMCI) National Consulting Index (NCI) project was initiated in 2017. The project aims to identify the key conditions which help explain the relative strength of a country’s management consulting sector, and use these data to provide reasonable estimates of any country’s management consulting sector ($m) where this is not known.

The paper has two parts. The first shows the numerical data using the NCI formula and data from 33 national Institutes of Management Consulting (IMC). The second summarises the national trends and dynamics of the management consulting market in these IMC countries. It is presented as a resource for practitioners and researchers seeking to better understand the management consulting industry around the world.