#3. Boston Consulting Group (BGS)
Boston Consulting Group (BCG) is one of the largest private companies in the United States which serves as an advisor to clients in the private, public, and not-for-profit sectors across the globe.
With a grueling interview difficulty rating of 3.8, and a 32 days long interview process that is designed to test the best, it is undoubtedly one of the toughest companies to make the cut.
"If I took your resume and removed the name at the top, what line on your resume would make your friends read it and recognize you?” is one of the toughest brain-teaser that candidates have to regularly crack to land a job at this firm. 
#2. ThoughtWorks
Number two on the list of companies that are the toughest to land a job, is ThoughtWorks, which is a global IT consultancy that provides custom software, software tools, consulting, and transformation services to clients. 
This firm has garnered an interview difficulty rating of 3.9 and aspirants must successfully endeavor 43 days long screening process in order to land a job at this firm.    
#1. McKinsey & Company
McKinsey & Company, which is a global management consulting firm, has garnered top honors in our list. With an interview difficulty rating of 3.9 and a taxing 39 days long interview process that can be handful for even the most qualified individual, the undisputed king of consulting firm has emerged as the most difficult company to get into.     
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