top 25 listSocial jobs and careers community site Glassdoor recently released its third annual report of the “Top 25 Most Difficult Companies to Interview,” a compilation of companies that stand out for putting job candidates through the most difficult interview process. The list is entirely based on tens of thousands of interview reviews from candidates over the past 12 months.

The top three most difficult companies to interview for are McKinsey & Company, Thoughtworks and Boston Consulting Group. McKinsey has topped this list for the past three years.

Other findings from the results include:

  •  Of the 25 companies featured, Facebook (#22), Guidewire (#23) and Bain & Company (#5) have the highest employee satisfaction ratings.
  •  Teach for America (#13), Procter & Gamble (#14) and Rolls-Royce (#6) have the longest interview process, 55, 50 and 46 days, respectively. The average interview process typically took 16 days.
  • More than half (52%) of Paycom (#11) job candidates reported having a negative interview experience, the highest amongst companies on the report. The average negative interview experience was 13 percent.
  • A whopping 86 percent of Rolls-Royce (#6) and Avaya (#15) job candidates reported positive interview experiences, tied for the highest percent of companies. The average positive interview experience was 52 percent.

Glassdoor also shared some of the tough interview questions candidates experienced from these companies:

  • “How would you calculate the annual carbon emissions from electric versus gas vehicles in the EU?” – McKinsey Business Analyst (Boston, MA) 
  • “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?” – Boston Consulting Group Consultant (Philadelphia, PA)
  • “Try to estimate the revenue from sale of tickets at Olympics 2012.” – Bain & Company Business Analyst (Gurgaon, Haryana (India)
  • “What is the total surface area of a Boeing 747?” – ZS Associates Business Operations Associate (Pune, India)
  • “Teach me something.” – Hubspot Inbound Marketing Consultant (location, n/a)
  • “How [would you] find the index and value of a missing element of an array of 5000 numbers?” – VistaPrint Software Manager (Lexington, MA)
  • “What do you do when there is no Answer?” – Microsoft Software Development Engineer In Test (SDET) (Redmond, WA)
  • “How would you invest $N in, say, (insert tech giant like Google/Facebook/Apple/Yahoo/Microsoft)? What options would you take – stocks, bonds, etc.” – Blackrock Analyst  (New York, NY)
  • “If your day was 20% performing job duties and 80% strategizing then give us examples of what you would be doing with that 80%?”- Rackspace Acquisitions Representative III  (San Antonio, TX)

Top 25 tough interview companies graphic



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