Top consulting firms in the world

The global consulting industry generates billions of dollars in revenue, and a large part of the market is dominated by the globe’s top management consulting firms. Worldwide, there are thousands of consulting firms of all sizes – large, mid-sized and boutique – serving clients across all industries and segments, and specialised in every conceivable niche.

But only a select handful of consultancies can claim to be a leader in the industry and the best in their segment. Consultancy.org’s guide of top consulting firms in the world breaks down the top players across a number of different dimensions, leveraging our unique database of more than 10 million data points per year assembled from clients (i.e. consultancy buyers), consultants and graduates.

As with any ranking, there is in consulting no clear definition of what defines a top consulting firm. It basically depends on who you ask, when you ask it, what type of service / expertise is assessed, and a range of other criteria. To reflect this variety in the advisory landscape, Consultancy.org’s guide takes a holistic view and presents several different lists of top consulting firms.