Business consulting giant Deloitte has claimed top spot in the thought leadership rankings. The rank reflects the number and quality of respective subject matter experts who provide service on behalf of Deloitte. IBM, Capgemini, PwC and BCG complete the illustrious list. It was mentioned that subject matter experts relates to both the content writers as well as the marketers and executives who implement the projects. A paper titled The Regulator of Tomorrow particularly won plaudits for the in-depth business research.