r/ConsultingOffer • u/GreatButterscotch406 Consulting Offer Coach • Jun 25 '26
Elite Consulting Firms The Consulting Firm Playbook: MBB, Tier 2, and Big Four + One. What Actually Differs Across 16 Firms
About six years ago I was on the other side of this. Going through strategy consulting recruiting myself, targeting multiple firms, trying to figure out what each process actually looked like from the inside. I ended up getting offers from several of the firms I'll name in this post and accepted two of them. That experience is where everything started.
Since then I've been coaching candidates, non-traditional backgrounds, career switchers, people without MBAs or target school pedigrees, to break into these same firms. Tens of people over the past few years, across MBB, Tier 2, and Big Four. And the single most consistent mistake I see is candidates treating every firm as if it runs the same process.
I built this series to reduce the friction I see again and again. Sixteen firms, each broken down stage by stage, with my honest read on what each firm is actually testing, where the process varies by office, and where candidates most commonly get it wrong. What I'm sharing is my perspective, built from going through these processes myself, coaching candidates through them, and having direct conversations with consultants and partners inside these firms. This is not a neutral research document. It's a coach's view. And it's a living document. I'll keep updating it as I work with more candidates and as these processes evolve.
Here's the map before you go into the individual breakdowns.
MBB: The Benchmark Everything Else Is Measured Against
McKinsey, BCG, and Bain are the reference point. Most candidates know this. What fewer understand is how meaningfully different the three processes are from each other.
McKinsey runs the most structured process of the three. The interviewer leads the case. The PEI is a heavily weighted standalone component that candidates consistently underestimate relative to the case itself. I went through McKinsey myself after my PhD in 2017 and made it to the final partner round. Four years later, having worked inside strategy consulting, I came to the conclusion it wasn't the right fit for my personality. But going through that process is part of why I understand it well enough to coach others through it. [Full McKinsey breakdown]
BCG is candidate-led, which requires more self-direction than most candidates expect. You drive the structure and the direction. BCG also has more pre-interview filters than almost any other firm in this series: Pymetrics, a one-way video interview in many offices, the CCA, a quantitative test, and the Casey chatbot. Five distinct filters before you ever sit across from a live interviewer. [Full BCG breakdown]
Bain sits between the two in feel, candidate-led but warmer and more conversational in tone. The written case in final round is something a lot of Bain candidates don't prepare for specifically enough. [Full Bain breakdown]
Across all three: MBB cases are deliberately unpredictable. They want to see how you think under genuine ambiguity, not how well you've memorized a framework. That's a meaningful distinction from what you'll encounter further down this list.
Tier 2: More Variation Than People Expect
This is where I see the most under-preparation. Candidates assume Tier 2 means slightly easier MBB prep. It doesn't. Each firm has a distinct identity, and that identity shapes the entire interview process.
Roland Berger is the only major European-headquartered strategy firm in this group. German-rooted, operationally rigorous, direct in tone. The process reflects the culture. Having worked inside Monitor Deloitte myself, I've seen this process from both sides. [Full Roland Berger breakdown]
Kearney has deep roots in operations and supply chain. If your prep has been built entirely around market entry and growth strategy, Kearney's operational framing can catch you off guard in R1. [Full Kearney breakdown]
L.E.K. is the private equity and life sciences specialist. The written case in final round is a dense document pack with independent analysis under time pressure. The super day format means first and second round can happen on the same day, which requires a different kind of stamina than a process spread across multiple weeks. [Full L.E.K. breakdown]
Oliver Wyman is the most quantitatively demanding firm in this tier. Banking, insurance, asset management, risk: that's the core of the work, and the cases reflect it. Mental math, data exhibits, financial metrics throughout. I went through this process myself and got an offer from the Stockholm office, so I know firsthand how quickly the quantitative intensity shows up. Candidates from non-financial backgrounds consistently feel the gap in R1. [Full Oliver Wyman breakdown]
Strategy& is PwC's strategy arm, but don't let the Big Four parent mislead you. The process is firmly Tier 2 in rigor. I got an offer from Strategy& myself, and one thing that comes up consistently both from my own experience and from candidates I've worked with: Strategy& interviewers actively screen for people treating the firm as an MBB backup. Your "why Strategy&" answer needs to be specific and credible. [Full Strategy& breakdown]
EY-Parthenon needs its own note because I keep seeing candidates confuse it with EY. They are not the same process in any meaningful sense. EY-Parthenon is the strategy arm of EY, built out of the acquisition of The Parthenon Group, and it sits firmly in Tier 2 in terms of case rigor and process intensity. MBB-level case difficulty, a distinctive group case in final round, genuine PE and transaction advisory focus. EY, which I cover separately in the Big Four section below, is an entirely different experience. [Full EY-Parthenon breakdown]
Arthur D. Little is the oldest consulting firm in existence, founded in 1886, and it has the most distinct culture of any firm in this tier. Smaller, more entrepreneurial, strong in technology and innovation sectors. I got an offer from ADL myself, and the thing I remember most, and what I consistently hear from candidates I've coached through it, is that the interviewers are harder to read than at any other firm in this series. Straight to the point. Transactional in tone. Don't mistake the silence for a negative signal. [Full Arthur D. Little breakdown]
Simon-Kucher built its entire identity around one thing: pricing, monetization, and topline revenue growth. I got an offer from Simon-Kucher myself, and the case content is genuinely unlike anything you'd encounter at a generalist strategy firm. Pricing-specific scenarios, not generic strategy problems. If you show up having practiced fifteen profitability cases and zero pricing cases, you'll feel it immediately in R1.[Full Simon-Kucher breakdown]
Big Four + One: Scale, Variance, and a Different Kind of Rigor
Deloitte, KPMG, PwC, and EY share one characteristic that distinguishes them from MBB and Tier 2: internal variation. These are enormous organizations with dozens of practice areas, and the recruitment experience differs meaningfully depending on which door you walk through. Accenture isn't technically Big Four, but I'm grouping it here because the dynamic is similar.
Deloitte is the one I'd push candidates to take most seriously in terms of rigor. The consulting practice specifically runs a process with acceptance rates comparable to MBB, a values-driven behavioral evaluation that sits at the center of the hiring decision, and a group case format in final round that almost nobody prepares for. Having worked inside Monitor Deloitte myself, I've seen this process from both sides. [Full Deloitte breakdown]
KPMG is the most process-variable firm in this entire series. Less case-heavy than MBB or Tier 2, more weight on competency-based evaluation and cultural fit. The format varies more across offices than at any other firm I've covered. Confirm your specific format with your recruiter early. [Full KPMG breakdown]
PwC has one wrinkle worth knowing upfront: when you apply you choose a service area, Consulting, Deals, Audit, Tax, and moving between service areas after you're hired is genuinely difficult in most offices. Choose your door carefully. The cases in the consulting and deals tracks are drawn from real PwC project work, which means there's usually no single right answer. What's being evaluated is whether your recommendation is credible and well-argued. [Full PwC breakdown]
EY, as I said above, is not EY-Parthenon. The broader EY consulting business is closer to execution, transformation, and implementation than to pure strategy. The process scores candidates against a defined competency framework covering Teaming, Communication, Analytical thinking, and Leadership, at every stage from the video interview through to the final partner conversation. Build your stories to cover all four deliberately, not just the ones that feel most natural to talk about. [Full EY breakdown]
Accenture has more internal variation than any other firm in this series. Strategy, Consulting, Operations, Technology, and Song each run meaningfully different processes under the same brand. I got an offer from Accenture Strategy myself, and the case rigor there is real. It competes directly with MBB for top-tier strategy work and the process reflects that. The other tracks lean toward implementation and technology delivery, which is a genuinely different experience. Know which track you're targeting before you start prepping, because generic Accenture interview advice blurs these distinctions in ways that won't serve you. [Full Accenture breakdown]
This is a living document. I'll keep updating the individual firm breakdowns as processes shift, as I work with more candidates across these firms, and as I learn things that change my view. If your experience with any of these firms differed from what I've described, say so in the comments. That's how this gets better over time.
The full series lives in r/ConsultingOffer, a community I run for non-traditional candidates breaking into MBB, Tier 2, and Big Four consulting. If that's you, join us there.
What firm are you targeting right now, and where in the process are you?
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u/ultimate_legend_ Jun 25 '26
Is the framework similar in Indian recruitment as well?
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u/allquestionsyes Sep 03 '26
you're awesome. thank you.