Big 4 Consulting Firms 2026: What Each One Publishes

Four fiscal year ends across the big 4 consulting firms

Each cell comes from the firm's own document, read 30 September 2026. Deloitte's revenue announcement is six days old and says "Deloitte today reported aggregate global revenue of US$74.5 billion for the fiscal year ending 31 May 2026 (FY2026), a 3.8% increase in local currency and 5.7% increase in USD from FY2025."

The other three are a year behind. PwC's financial performance page covers "the 12 months ending 30 June 2025". EY's revenue release covers "the fiscal year ending June 2025 (FY25)". KPMG's December release covers "the year ended 30 September 2025". No 2026 release exists for any of the three at the time of writing, and KPMG's next year end falls on 30 September 2026.

What a combined Big Four figure actually adds up

Add the four numbers in the table and you get 224.4. Do it in order: 74.5 plus 56.9 is 131.4, plus 53.2 is 184.6, plus 39.8 is 224.4 billion dollars.

Now look at what you just added. One figure closes in May 2026 and three close in mid to late 2025. The span between the earliest and the latest year end is twelve months. A combined total is therefore a rough measure of the group's scale and a poor measure of any single year, and every page that prints one without the dates is hiding that.

There is a second reason to treat the total gently. The figures are aggregated network revenues, which means the sum of separate member firms rather than the consolidated accounts of one company. PwC states its own as "gross revenues", and publishes a separate net figure after client disbursements, 54,453 million against 56,968 million gross. Deloitte uses the phrase "aggregate global revenue". KPMG says "globally aggregated revenues on a continued operations basis". The three wordings differ and none of them means what a listed company's revenue line means.

Only two big 4 accounting firms break consulting out in dollars

PwC gives a full table in millions: Advisory 24,386, Assurance 19,846, Tax and Legal 12,736, against gross revenues of 56,968. Add the three lines and they close: 24,386 plus 19,846 is 44,232, plus 12,736 is 56,968. Advisory divided by the total is 42.8 percent. The page adds a useful qualifier, that "Audit services account for approximately 74% of total Assurance revenues", and 74% of 19,846 is about 14,686 million of audit.

EY gives four lines, also in millions: Assurance 17,877, Consulting 16,400, Tax 12,707, Strategy and Transactions 6,235. Those sum to 53,219, which is the published total. Consulting divided by that total is 30.8 percent.

Deloitte publishes growth and no amounts: "A&A revenue grew 5% in local currency", "SR&T revenue grew 4.4% in local currency", "T&T revenue grew 2.5% in local currency", "T&L revenue grew 5.8% in local currency". KPMG does the same, with "Tax & Legal Services grew by 7.5%", "Audit grew 6.0%" and "Advisory grew 2.9%". We checked KPMG's corporate reporting page as well, and it carries the total only.

A dollar comparison of the four consulting arms therefore cannot be built from primary sources. Pages that publish one built it from something else.

Deloitte no longer publishes a line called Consulting

This one catches most write-ups. The September 2026 announcement has no business line named Consulting. It names two: "Our consulting services, Strategy, Risk & Transactions (SR&T) and Technology & Transformation (T&T)". SR&T is described as "Deloitte's comprehensive strategic advisory business", and T&T covers engineering and technology-led transformation.

So the phrase "Deloitte Consulting revenue" describes a reporting line the firm does not report. The nearest honest statement is that two of Deloitte's four businesses are its consulting services, that one grew 4.4% and the other 2.5% in local currency in the year to 31 May 2026, and that neither carries a published amount.

The same announcement records a structural change worth noting for anyone choosing an office. "FY2026 marked an historic moment when Deloitte partners voted to create Deloitte EMEA, which launched on 1 June 2026", with "over €1.5bn in incremental investment planned". Regional growth in local currency ran 7.5% in Asia Pacific, 3.5% in EMEA and 3.2% in the Americas.

About 1,546,000 people, and no consultant count anywhere

Take the four published headcounts, each from the documents above. Deloitte reports "nearly 500,000 globally". PwC reports "364,000 people" in 136 countries. EY reports about 406,209 people in more than 150 countries. KPMG reports "Global headcount grows by 1.8% to 276,030" across 138 countries.

Add them in order: 500,000 plus 364,000 is 864,000, plus 406,209 is 1,270,209, plus 276,030 is 1,546,239. Call it 1.55 million people.

None of that number is a consultant count. All four publish a firm total and none publishes a split by service line. EY comes closest by publishing revenue for four lines, and it still gives no headcount for any of them. So the honest reading is that the Big Four employ about 1.55 million people across audit, tax, advisory, consulting and internal functions, in an unknown mix.

That matters when you compare the group with a strategy firm. The group on the other side of that comparison is usually the big three management consulting firms, McKinsey, BCG and Bain, set out on the MBB guide. The comparison people reach for is headcount, which is the one number here that tells you least about the work.

Where strategy sits inside the big 4 consulting firms

Strategy& keeps its own careers page and opens it with "The next chapter in your strategy consulting career." It welcomes "talent from many backgrounds, disciplines, and experience levels, from students and graduates to experienced professionals and industry experts", and it names no entry title and no selection steps. Under Find your role it listed exactly two markets on 30 September 2026, the Middle East and Germany.

EY-Parthenon publishes two junior doors split by degree. The Associate Program takes undergraduate and master's candidates, and the Consultant Program takes MBA candidates. EY describes the brand itself carefully: "EY-Parthenon is a brand under which a number of EY member firms across the globe provide strategy consulting services."

Monitor Deloitte publishes a practice page and no recruiting route. Its URL sits under the consulting services path, and the US campus route for consulting carries one application name covering the offerings together.

Which door you apply to at the big 4 consulting firms

1. Deloitte US. One consulting campus route, with a separate track for undergraduate and advanced degree candidates. Monitor Deloitte is not a separate application.
2. PwC US. Apply to the Advisory practice through the entry-level route. Strategy& appears as a brand rather than a distinct US campus door in the pages read.
3. EY US. Apply to EY Consulting or to an EY-Parthenon program. The published window for both read "Opens September 8; Closes September 22", with the MBA intern window "Opens October 5; Closes November 29". EY also caps applications: "Please apply to no more than two jobs within a six-month period."
4. KPMG US. Apply for Advisory Associate. The posting we read states "Must have a current/most recent GPA of 3.0 or above", the only published academic threshold among the four.

One caution on all four. These are the US and UK pages we could read. Deloitte publishes a distinct UK early careers assessment, and its requirements differ from the American route. A statement about the Big Four that names no country is already wrong somewhere, which is why each line above carries one.

The ten services an audit client cannot buy

This is the structural limit, and it is written in law rather than in a brochure. Under 17 CFR 210.2-01(c)(4), read 30 September 2026, "An accountant is not independent if, at any point during the audit and professional engagement period, the accountant provides the following non-audit services to an audit client". Ten categories follow:

1. Bookkeeping or other services related to the accounting records or financial statements.
2. Financial information systems design and implementation.
3. Appraisal or valuation services, fairness opinions, or contribution-in-kind reports.
4. Actuarial services.
5. Internal audit outsourcing services.
6. Management functions.
7. Human resources.
8. Broker-dealer, investment adviser, or investment banking services.
9. Legal services.
10. Expert services unrelated to the audit.

Two of those bite hardest on consulting work. Category six is defined as "Acting, temporarily or permanently, as a director, officer, or employee of an audit client, or performing any decision-making, supervisory, or ongoing monitoring function for the audit client", which rules out running the thing you recommended. Category two covers "Designing or implementing a hardware or software system that aggregates source data underlying the financial statements", which is a large share of finance transformation work. The same rule bans contingent fees and forces audit partner rotation after five consecutive years.

This is the constraint that separates the big 4 audit firms from a pure strategy house, and it sits in federal regulation rather than in a firm's own policy. The rule is American and applies to clients filing with the SEC. It does not describe every country's law, and no firm publishes which of its audit clients this removes from its consulting pipeline.

The four screens, and the plainest promise of a case

Every cell comes from the firm's own page, checked 29 September 2026 for the recruiting pages and 30 September 2026 for the revenue documents. The pattern across the four is that the Big Four publish more procedure than the strategy firms do, and they publish it unevenly. PwC states that "The majority of our Advisory positions require a case interview as part of the interview process", which is the plainest statement of the four on whether a case is coming.

Two named Deloitte Senior Consultants describe the inside of an engagement on the firm's own site, read 30 September 2026. Anna Filochowska says "I believe in giving people the space to express their ideas", and Zach Friedland says of working with her that "There was no sense of hierarchy; she just wanted to be a resource and help." Both accounts are chosen and published by their employer, and neither says anything about selection.

What the big 4 consulting firms do not publish

Four absences, each verified rather than assumed.

1. Consulting revenue in dollars at Deloitte and KPMG. Checked in the announcement and on the corporate reporting page.
2. Consultant headcount at any of the four. All four publish a firm total only.
3. A 2026 figure at PwC, EY and KPMG. Their latest closes in mid to late 2025, and the autumn 2026 releases will move this page.
4. The size of Strategy&, EY-Parthenon or Monitor Deloitte in people. EY publishes a figure for its strategy line, 6,235 million dollars, and that line also carries deals and corporate finance.

Two further gaps belong on this list because the search results fill them anyway. Nobody publishes how many audit clients a firm has turned away from consulting work, so the practical reach of the independence rule stays unmeasured. And only one of the four posted an academic threshold in the pages we read, the KPMG US GPA line, so a claim that the Big Four all screen on grades rests on a single American posting.

For pay, the filed bands sit on the pages that carry their sources: Deloitte consulting pay, PwC consulting pay and EY consulting pay, with a cross-firm view on the salary guide. Those pages read certified US Labor Department filings, which name the employer, the title and the city, and they carry the dates. This page deliberately repeats none of their figures.

What to practice, given what these four screens test

Two things follow from the table above. Your application cap is real, so pick the practice and the firm before you submit rather than after. And a case is likely at PwC Advisory, at Deloitte and at EY, so the case is where the preparation goes.

Our rubric weights sit on how an answer is assessed, and they are ours rather than any firm's, because none of the four publishes a rubric. Timed drills for the separable pieces sit on the drill library, including a structure drill and a synthesis drill.

The limits, stated here rather than left to be discovered. Our assessments page publishes its own count, "0 of 6 simulators are live", so nothing here reproduces a job simulation or a behavioral assessment. The drills carry no accounting or audit content, which is a real gap against a Big Four route in a way it is not against a strategy firm. And nothing on this site can tell you which audit relationship will keep a given client out of your project pipeline, because no firm publishes that list.

What changed on this Big Four page

30 September 2026. The page was rewritten from the documents in the ledger. Five claims from the earlier version were removed or replaced.

1. It said the consulting arm "is the largest part of several of them" with no figure. Only two of the four publish a service line amount, so the claim could not be checked and is gone.
2. It said each firm "has a named strategy practice that competes for the same work as strategy firms and recruits separately with a different process". Two of the four have no separate recruiting door, and the table now says which.
3. It asserted that projects "run longer with larger teams". Nobody publishes project durations or team sizes, so the sentence has been dropped rather than softened.
4. It said independence constraints "occasionally explain why a firm is not in a given deal" without citing the rule. The ten prohibited categories now appear with their legal source, and the fact that no firm publishes its own excluded client list is stated.
5. A closing paragraph about starting from a diagnosis was shared word for word with other pages on this site. It has been replaced by what the four screens actually test.

Corrections here live in this dated section. The body above states what the four firms published as of 30 September 2026, and three of those four figures will age this autumn.