Gartner

Established in 1979, Gartner Inc. is an IT research and advisory firm that is based in Stamford, Connecticut, United States. The company specializes in providing technology related insights that are targeted at CIOs and senior IT leaders in industries.

Landing a job at this firm is considered as one of the toughest in the world and this is for a reason. Candidates aspiring to work at this company must first crack an interview that is designed to test their mental proficiencies to the fullest, plus the grueling 35 day long screening process adds to the difficulty of being hired by this organization.   

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.  

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