Nkosikhulule Nyembezi is a researcher, human rights activist and respected political and economic commentator. He is the civil society convenor at the National Anti-Corruption Forum SA, as well as the chairperson of the Western Cape Language Committee and the Social Change Assistance Trust. He serves as an analyst and columnist for Ukhozi FM, Umhlobo Wenene FM, TruFM and I'solezwe lesiXhosa. Previously, he served on programme committees for the XIII and XIV International AIDS conferences.

His research interests are mainly on constitutional law, human rights law, and electoral politics. He has contributed articles for the Compendium of the Electoral Advancement Institute of South Africa. Nyembezi was an associate researcher in the access to justice programme of the Democracy and Governance Research Unit at the University of Cape Town. His involvement in reforms in the paralegal sector and the training of judicial aspirants is evident in the improved quality in recent years of candidates interviewed for appointment by the Judicial Service Commission.