19/05/2026
Choosing between MBB (McKinsey, BCG, Bain) and Big 4 (Deloitte, PwC, EY, KPMG) consulting firms is a pivotal career decision. From personal experience and after reading a thorough comparison by Taylor Warfield, here's a breakdown:
Salary: MBB pays significantly more. Entry-level positions at MBB can fetch £100K+, compared to £70K-£85K at Big 4. This gap widens at higher levels.
Career Progression: MBB offers quicker promotions with a rigorous up-or-out model, typically reaching partner in 10-12 years. Big 4 takes longer, around 13-15 years, with a steadier but slower climb.
Work Type: MBB focuses on high-level strategy, working directly with C-suite executives on critical decisions. Big 4 handles more implementation and advisory roles, often for middle management, which can be equally rewarding and offer different experiences.
Work-Life Balance: Prepare for intense travel and long hours at MBB, given the high-stakes projects. Big 4 provides more predictable schedules, albeit still challenging.
Exit Opportunities: MBB alumni often transition to private equity, corporate strategy, or C-suite roles due to the resume prestige. Big 4 alumni excel in finance leadership, tech, or specialised consulting roles.
Both paths offer rewarding careers, but your choice should align with your career goals, desired work environment, and lifestyle preferences. I'd love to hear your thoughts or personal experiences with either MBB or Big 4!
&Differences
MBB vs Big 4 consulting differs in salary ($135K vs $90K entry level), prestige, project type, and exit opportunities. Full comparison of McKinsey, BCG, Bain vs Deloitte, PwC, EY, KPMG on pay, work culture, career progression, and how to choose the right path.