The National Consulting Index (NCI) determines the strength of a national management consulting sector relative to other countries. It was first created in 2017 following research and analysis conducted at the International Council of Management Consulting Institutes (ICMCI). This paper provides an update to the NCI project and estimates the size of the management consulting sectors for several countries around the world. The paper also offers qualitative insight from some countries about the trends and dynamics of their management consulting industries.