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Three thin paper booklets lie next to a massive, thick binder on a plain stone surface. Title: “What MBB Consulting Means In 2026: Label Versus Size”, over the Protocol Career wordmark.

What MBB Consulting Means In 2026: Label Versus Size

McKinsey billed $39.1m in US federal contracts in fiscal 2026, Deloitte Consulting $2.89bn. What MBB consulting groups as a label, and what it gets wrong.

8 min read
In short
  • MBB is McKinsey & Company, Boston Consulting Group and Bain & Company. None of the three uses the acronym on its own about page.
  • On the US federal contract register for fiscal 2026, McKinsey recorded $39,086,619, BCG $350,000, and Bain no listed recipient at all.
  • Deloitte Consulting LLP recorded $2,889,068,614 on that same register, roughly 74 times McKinsey's figure. The label describes a hiring market.
  • The grouping is verifiable in one document: the Labor Department disclosure file, where all three file six consulting rungs in the same format.
  • Two claims that dominate this query carry no source: a sub-one-percent acceptance rate, and any ranking of the three against each other.

MBB stands for McKinsey & Company, Boston Consulting Group and Bain & Company, the three firms conventionally treated as the top tier of strategy consulting. The label is recruiting shorthand. None of the three publishes it. This page measures what the grouping is good for, and where it misleads about scale.

Why McKinsey, BCG and Bain omit the acronym, and where they align

The acronym has no owner. We read the about page of each of the three, checked 30 September 2026, and none of them uses it. So the tier is an external convention, and a page that treats it as a corporate fact has already gone wrong in its first sentence.

One document does hold all three at once. US employers that sponsor a foreign worker file a Labor Condition Application, and the Department of Labor publishes every determination with the employer, the job title, the city and the wage. For fiscal 2026 the disclosure file carries 648 certified determinations for Boston Consulting Group, 453 for McKinsey and 100 for Bain.

That file is where the three look genuinely alike. Each files a six rung consulting ladder. Each sets one entry title for candidates without a graduate degree and another for candidates with one. Each files a single national floor rather than a city by city wage, which is the filing habit that separates them from the large accounting and technology firms.

The names do not line up, and the word Associate is the trap: at McKinsey it sits above the MBA, at BCG below it. Our MBB comparison page works through all six rungs of each ladder and the salary bands attached to them.

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What the US government paid MBB consulting in fiscal 2026

Consulting revenue is private, so the SERP argues about size with adjectives. One buyer publishes its side of the transaction: the US federal government, through the USAspending API, checked 30 September 2026. Every figure below is contract transactions for the federal fiscal year, definitive contracts and orders only.

Recipient as filed Fiscal 2026 Fiscal 2025
McKinsey & Company, Inc. Washington D.C. $39,086,619 $80,111,368
The Boston Consulting Group Inc $350,000 $32,630 de-obligated
Bain & Company no recipient found no recipient found
Deloitte Consulting LLP $2,889,068,614 $2,971,961,456
Accenture Federal Services LLC $3,219,353,695 $3,234,021,028
Booz Allen Hamilton Inc $5,715,387,357 $6,593,238,379

Three readings, and the third is the one worth keeping. McKinsey's fiscal 2026 total is a little under half its fiscal 2025 total, since $39,086,619 divided by $80,111,368 gives 0.49. BCG's fiscal 2025 line is negative because credits released that year exceeded credits committed. And searching Bain over both years returns an unrelated instrument maker, a building materials group and a private individual, so no Bain & Company recipient exists on this register at all.

Why one Big Four firm outbills all of MBB consulting

Divide Deloitte Consulting's fiscal 2026 total by McKinsey's and you get 73.9, so roughly 74 times. Booz Allen's main entity divides out at 146 times. Against BCG the gap is wider still: $39,086,619 divided by $350,000 leaves McKinsey about 112 times ahead of a firm sitting in the same acronym.

Put BCG's line against its own published revenue and the scale becomes plain. BCG states "33.5k global employees $14.4b annual revenue" on its overview page, and $350,000 against $14.4 billion is 0.0024 percent of a year.

This is what the label is and is not good for. It predicts a hiring market: three firms recruiting the same candidates, screening them within weeks of each other, paying comparable entry bands and feeding the same alumni pipelines. It predicts nothing about market share, and on the one ledger where every firm is measured in the same unit by the same buyer, the three sit two orders of magnitude behind the firms that the same conversation calls second tier.

Both readings are true at once, and the honest version says which is which. A register of one buyer measures a buyer, and the commercial work that makes up almost all of these firms' revenue never appears on it.

What MBB consulting predicts, down to the three screens

Three things, and they are the reason the grouping is useful to a candidate at all.

  1. Your degree picks your title. A bachelor's degree opens Business Analyst at McKinsey, Associate at BCG, Associate Consultant at Bain. An MBA or a doctorate opens Associate at McKinsey, Consultant at BCG and at Bain, though what each firm publishes for a PhD at an MBB firm diverges past that title. BCG's US Associate page, checked 30 September 2026, closes that door to MBA candidates in as many words.
  2. The recruiting calendar moves together. All three run their main campus cycles in the same windows, which is why candidates prepare for the three as one target.
  3. The screen is where they stop being interchangeable. BCG sends its Consulting Career Assessment 30 to 90 minutes after you submit, with 48 hours to return it. Bain serves its digital assessment through one of two outside vendors, and states that "Applications will not be considered if the digital assessment is not completed". McKinsey runs its own assessment instead.

Treat that third point as the operational consequence of this whole page. Our guide to getting into MBB carries the three screens side by side, including the rule that changes depending on which vendor Bain draws for you.

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Three self-published size figures, in three different units

Each of the three does publish something about itself, and no two publish the same quantity. Read as a set, they defeat any size comparison built out of them.

Firm What its own page publishes What it withholds
BCG 33.5k employees, $14.4b annual revenue, 16 industries, 20 capabilities The period the revenue covers
Bain 67 cities in 40 countries, founded 1973 Headcount and revenue
McKinsey An alumni network of "over 50,000 former colleagues in nearly 140 countries" Headcount, revenue, office count

We checked whether the missing figures were buried elsewhere on those pages rather than absent. On McKinsey's overview we extracted every sentence containing offices, countries, colleagues or partnership: three sentences came back, and none carries a staff figure. Bain's about page lists its cities individually in the office menu, which makes 67 checkable.

So one of the three reports a size, one reports a footprint, one reports the people who have left. Any claim that firm A is bigger than firm B, sourced to these pages, is a reconstruction. We do not publish one, and CONTENT.md rule 6.5 bars us from ranking them in any case.

Two unsourced claims, and four facts you can check

The first is the acceptance rate. The figure of under one percent circulates on this query as though it were published. It is not published by McKinsey, BCG or Bain, and none of the three releases an application count or an offer count. What can be counted is the sponsorship volume above, and a visa filing is a case file rather than a hire.

The second is the ranking. Pages on this query routinely sort the three by prestige, by culture or by exit strength. No firm publishes a culture measurement, we have not run one, and each of the three says on its own careers pages that experience varies by office and team. A comparison of averages across three firms cannot survive that variance.

What honestly separates them for a candidate is narrower and duller: which entry title your degree opens, which screen you will sit, which offices file the roles you want, and which practices they staff locally. All four are checkable, and three of the four sit in documents linked from this page.

Where the pay figures live, and why they are not repeated here

Entry pay at these three is close enough that it should not decide an application, and it is documented rather than guessed. The Labor Department file carries the filed band for every rung of all three ladders, and each firm states a starting figure in the postings that jurisdictional pay transparency rules cover.

Those numbers are already published on this site with their sources and dates, so repeating them here would create a second copy to keep current. The consulting salary guide carries the cross firm bands, and the MBB comparison page carries the rung by rung version for the three. Both name the filing quarter they were read from, which matters, because the bands tightened between the 2025 and 2026 filings.

One warning about all of it. A filed base is a base. Bonus, profit sharing and the local tax treatment of any of it are not in the disclosure file, and no firm publishes them.

What to drill once the label stops deciding anything

The case mechanics behind all three screens reward the same four behaviors, and our synthesis rubric weights them as Answer first 35, Evidence 25, Risk 20 and Next step 20. Those weights are ours, read from our own grading code. No consulting firm publishes a scoring rubric, and anyone claiming to quote one is inventing it.

Two drills use those weights on real prompts: the structure drill and the synthesis drill. Both score what you write and name the dimension to correct first. The full weight tables sit on how an answer is assessed.

Here is what our tools do not do. Our assessment page says on its own face that 0 of 6 simulators are live, so nothing here reproduces McKinsey's assessment, BCG's timed test or either of Bain's vendor tools. They teach no business content either, and for the McKinsey screen that is deliberate, because the firm states no business knowledge is tested. If you want the firms' own material, all three publish sample cases free on their careers sites, and that is the first place to spend an evening.

Before you go: where do you actually stand?

A short diagnostic: a few questions about where you are, one real case, and a score on the dimensions firms publish. Free, no card.

Sources

Primary sources only: the firm, the test vendor, or the institution concerned. Each carries the date we last read it.

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Written and reviewed by
Elias MarchandStrategy editor

Edits the firm and case guides on this site. Reads each claim about a recruiting process back to the firm's own page before it is published, keeps the source ledger dated, and owns the corrections.

How this guide was made

  • Written against a published editorial process, not from memory. Every claim about a firm's process is either linked to that firm's own page or absent. We say what we could not verify rather than filling the gap.
  • Each page carries a dated source ledger, below. When a firm changes a programme or a deadline, the date tells you how far to trust what you just read.

We look for first-hand candidate accounts for every firm guide. Where we found none we could source, the page says so and carries the firm's own words instead. Nothing here is dressed up as testimony, and if your own experience contradicts what you read, tell us and we will correct it and date the change.

Something wrong or out of date here? Tell us and we will correct it and date the change.