Which consulting firm gives you the best chance of landing an even bigger job? Like the 2018 ranking, McKinsey reigned atop this Consulting50 measure. The surprise, however, is that posted a near perfect 9.91 average, nearly .3 of a point better. That said, the Boston Consulting Group nearly averaged a near perfect 10 as well, with Bain & Company and Putnam Associates bringing an impressive 9.7 average to the table as well.