Big Three (management consultancies)

MBB Logos: McKinsey, BCG, Bain

The Big Three or MBB refers to management consulting firms McKinsey & Company, Boston Consulting Group, and Bain & Company. The three companies are distinguished by the depth and rigor of their analyses and recommendations, rich histories of service dating back to their foundings in the mid-20th century, and strong client bases spanning some of the world's largest and more important companies.[1]

Known for their highly selective and competitive recruiting process, the MBB firms hire a large portion of their consultants from prestigious undergraduate universities and MBA programs around the world, supplementing them with more senior industry hires with deep expertise in specific sectors served by the firms.[2] While continuing to maintain a focus on the strategy consulting work for which they originally rose to prominence, the MBB firms have expanded their portfolio of offerings over the years to include consulting services such as operating model design, performance improvement, M&A diligence, human capital, and digital / AI transformation.

MBB firms have also been the subject of criticism over the years for alleged unethical activities, with a prominent example being McKinsey's role in helping Purdue Pharma "turbo-charge" its sales of OxyContin, which has been cited as a direct contributor to the opioid epidemic in the United States.[3]

The firms

McKinsey & Company, Boston Consulting Group, and Bain & Company, collectively referred to as "MBB", are widely considered the three top and most prestigious strategy consulting firms in the world. Jobs at these firms are among the most sought after by MBA students and have a less than 1% acceptance rate.[4]

These three firms are among the world's largest strategy consulting firms by revenue. Their latest publicly available data is summarized in the table below:[5]

Firm Employees (year) Revenue (year) Revenue per Employee Locations (cities) Headquarters
McKinsey & Company 40,000 (2023)[6] $16 B (2023)[7] $355 K 133[8] New York[8]
Boston Consulting Group 33,000 (2024)[9] $13.5 B (2024)[9] $410 K 100+[10] Boston
Bain & Company 15,000 (2022)[11] $5.8 B (2021)[12] $387 K 65[13] Boston

See also

References

  1. ^ Cogar, Joshua (July 9, 2019). "MBB Firms". Management Consulted.
  2. ^ "MBB Consulting Firms: What's Different About the Big 3". My Consulting Offer.
  3. ^ Mann, Brian (December 13, 2024). "McKinsey & Company to pay $650 million for role in opioid crisis". NPR.
  4. ^ "MBB explained: How hard it is to get hired and what it's like to work for the prestigious strategy consulting firms, McKinsey, Bain, and BCG". Business Insider. November 29, 2024. Retrieved April 24, 2025.
  5. ^ Chin, Eric. "The MBS Trio In Management Consulting". beatoncapital.com. Archived from the original on October 22, 2014. Retrieved October 18, 2014.
  6. ^ Business Insider (August 12, 2025). "McKinsey's Staff Numbers Have Dropped More Than 10% in the Last 18 Months". businessinsider.com. Retrieved August 12, 2025. {{cite web}}: |author1= has generic name (help)
  7. ^ "Bob Sternfels re-elected global managing partner of McKinsey & Company". McKinsey & Company. February 1, 2024. Retrieved April 12, 2024.
  8. ^ a b "McKinsey fact sheet" (PDF). December 11, 2019. Archived from the original on June 4, 2021. Retrieved April 12, 2024.
  9. ^ a b "BCG Achieves 10% Growth in 2024 and Record Revenue". Boston Consulting Group. Retrieved November 22, 2024.
  10. ^ "BCG Worldwide". Boston Consulting Group. Retrieved July 29, 2022.
  11. ^ "Bain & Company mobilizes its global talent, strategic expertise and partnerships with leading social innovators to tackle economic, educational and environmental challenges". Bain. Archived from the original on June 8, 2021. Retrieved June 8, 2021.
  12. ^ Zarzalejos, A. (February 14, 2022). "Bain cierra su mejor año en España con el tirón del M&A". Expansión (in Spanish). Retrieved July 29, 2021.
  13. ^ "Global Offices". Bain & Company, Inc. Retrieved July 29, 2022.
This article is issued from Wikipedia. The text is available under Creative Commons Attribution-Share Alike 4.0 unless otherwise noted. Additional terms may apply for the media files.