The top 50 UK accountancy firms, 2026
Every other "top accounting firms" list is built from surveys the firms answer themselves. This one is built from what they filed at Companies House — the turnover line in each firm's own audited accounts, with the umbrella companies, intra-network recharge vehicles and misfiled holdcos stripped out.
What the filings show
UK accountancy is a profession with a very long tail and a very heavy head. The Big Four — PwC, Deloitte, EY and KPMG — billed £19.41B between them in their latest filed accounts, 80% of everything billed by the 60 firms on this list. PwC alone (£6.35B) out-bills the 56 firms below the Big Four combined (£4.86B).
The fastest-growing names are not the famous ones. Sumer (+163%), BK Plus (+85%), Moore Kingston Smith (+69%), Cooper Parry (+61%) top the growth table — and most of that pace is acquisition, not organic wins: private-equity money is rolling up regional practices into national groups at a rate the profession has never seen, and it shows up plainly in the filings. Several of the consolidators on this list barely existed five years ago.
The other growth engine is corporate distress. Interpath, Begbies Traynor, FRP Advisory, Leonard Curtis — the restructuring-led firms tagged in the table — filed £479.1M of combined turnover. Insolvency work is one of the most reliable growth businesses in UK professional services right now, which says as much about the wider economy as it does about the firms.
Top 50 accounting firms in the UK by filed turnover
Latest accounts filed as of August 2026 · refreshed monthly
| # | Firm | Turnover | YoY | Staff | Accounts |
|---|---|---|---|---|---|
| 01 | PwC Global professional services firm | £6.35B | +0% | 33,770 | FY to Jun 2025 |
| 02 | Deloitte Deloitte LLP, the UK firm; the larger Deloitte NSE LLP filing covers multiple North & South Europe territories and is not ranked. | £5.68B | -1% | 26,978 | FY to May 2025 |
| 03 | EY | £3.78B | +2% | 17,831 | FY to Jun 2025 |
| 04 | KPMG Professional services holding partnership KPMG Holding LLP, the consolidated UK group (FY2025); supersedes the KPMG LLP entity filing (FY2024). | £3.60B | +20% | 18,251 | FY to Sept 2025 |
| 05 | BDO | £1.00B | — | 3,229 | FY to Jul 2025 |
| 06 | Forvis Mazars | £391.9M | +8% | 3,542 | FY to Aug 2025 |
| 07 | Azets Holding company for accounting group Azets Holdings Limited, the UK group. Sister brand Blick Rothenberg (same ultimate owner, Hg) files separately and is ranked separately. | £310.7M | +10% | 3,373 | FY to Jun 2025 |
| 08 | MHA Accountancy and professional services firm MacIntyre Hudson LLP, the operating firm of AIM-listed MHA plc. | £211.4M | +44% | 1,665 | FY to Mar 2025 |
| 09 | Xeinadin Holding company for Xeinadin Xeinadin Topco 1 Limited, the consolidated group; includes the group’s Ireland operations. | £198.4M | +28% | 2,362 | FY to May 2025 |
| 10 | Sumer Sumer Group Holdings Limited, consolidated. | £186.8M | +163% | 2,145 | FY to Jun 2025 |
| 11 | RSM UK RSM UK Audit LLP only. RSM operates through sibling LLPs (tax & advisory, consulting, corporate finance, risk assurance, restructuring) with no single consolidated UK filing; the firm’s combined revenue is materially higher. | £183.8M | +12% | 95 | FY to Mar 2025 |
| 12 | Crowe UK | £183.7M | +12% | 1,471 | FY to Mar 2025 |
| 13 | Moore Kingston Smith Moore Kingston Smith Group Holdings LLP, consolidated. | £158.3M | +69% | 1,436 | FY to Apr 2025 |
| 14 | Interpath restructuring & advisory | £156.8M | — | 648 | FY to Mar 2025 |
| 15 | Begbies Traynor restructuring & insolvency Begbies Traynor Group plc, consolidated (LSE: BEG). | £153.7M | +12% | 1,318 | FY to Apr 2025 |
| 16 | Saffery | £140.4M | +15% | 1,197 | FY to Mar 2025 |
| 17 | FRP Advisory restructuring & insolvency FRP Advisory Trading Limited, the operating consolidation; the listed parent does not disclose turnover in its holding accounts. | £135.5M | +12% | 684 | FY to Apr 2025 |
| 18 | PKF Littlejohn | £95.9M | +11% | 680 | FY to May 2025 |
| 19 | Buzzacott | £86.7M | +3% | 618 | FY to Sept 2025 |
| 20 | Blick Rothenberg Accounting and tax advisory firm Owned by Hg alongside Azets but files separately as its own brand. | £83.6M | +9% | 813 | FY to Jun 2025 |
| 21 | Menzies | £82.2M | +15% | 700 | FY to Jun 2025 |
| 22 | Johnston Carmichael | £75.7M | +4% | 838 | FY to May 2025 |
| 23 | Cooper Parry Cooper Parry Advisory Limited only; a sibling Cooper Parry Audit LLP filed a further £45.3m — no consolidated group accounts are filed. | £69.9M | +61% | 655 | FY to Apr 2025 |
| 24 | HaysMac Formerly haysmacintyre. | £67.5M | +14% | 515 | FY to Mar 2025 |
| 25 | Kreston Reeves | £53.1M | +8% | 497 | FY to May 2025 |
| 26 | Hazlewoods | £52.0M | +13% | 38 | FY to Apr 2025 |
| 27 | S&W S&W Partners Audit Limited; the former Smith & Williamson / Evelyn Partners professional-services arm — no post-carve-out consolidated accounts yet. | £50.6M | +28% | — | FY to Dec 2024 |
| 28 | Bishop Fleming | £45.7M | — | 466 | FY to Jun 2025 |
| 29 | Rawlinson & Hunter | £41.9M | +12% | 279 | FY to Mar 2025 |
| 30 | Price Bailey | £41.3M | +13% | 440 | FY to Mar 2025 |
| 31 | Leonard Curtis restructuring & insolvency | £33.1M | +55% | 245 | FY to Apr 2025 |
| 32 | HW Fisher | £49.8M | — | — | 18-mo period to Nov 2024 |
| 33 | Larking Gowen | £31.0M | +10% | 395 | FY to Mar 2025 |
| 34 | Armstrong Watson | £30.0M | +26% | 562 | FY to Mar 2025 |
| 35 | Barnes Roffe | £34.9M | — | — | 14-mo period to Jun 2025 |
| 36 | Mercer & Hole | £28.1M | +8% | 245 | FY to Sept 2025 |
| 37 | Lovewell Blake | £27.0M | — | 1 | FY to Mar 2025 |
| 38 | BK Plus | £25.9M | +85% | 401 | FY to Mar 2025 |
| 39 | Gerald Edelman | £25.5M | +24% | 151 | FY to Dec 2024 |
| 40 | Shipleys | £23.7M | +7% | 172 | FY to Apr 2025 |
| 41 | Lubbock Fine | £23.4M | — | 163 | FY to Mar 2025 |
| 42 | Gravita Gravita Group Limited, consolidated FY2025; the group has continued acquiring since this period closed. | £22.6M | +6% | 404 | FY to Apr 2025 |
| 43 | Albert Goodman | £22.0M | +3% | 342 | FY to Mar 2025 |
| 44 | Sopher + Co | £20.7M | +10% | 181 | FY to Mar 2025 |
| 45 | Ensors | £8.4M | — | 298 | 5-mo period to Aug 2025 |
| 46 | Goodman Jones | £19.6M | +2% | 149 | FY to May 2025 |
| 47 | Westcotts | £18.7M | +14% | 239 | FY to Mar 2025 |
| 48 | Old Mill | £22.4M | — | 190 | 16-mo period to Oct 2025 |
| 49 | Henderson Loggie | £14.6M | +13% | 166 | FY to Mar 2025 |
| 50 | Alliotts | £14.1M | — | 105 | FY to Mar 2025 |
The next 10
Firms ranked 51–60
| 51 | Wilson Wright | £14.0M | -12% | FY to Mar 2025 |
| 52 | ForrestBrown tax (R&D) | £13.7M | +3% | FY to Dec 2025 |
| 53 | Wright Vigar | £12.8M | +12% | FY to Mar 2025 |
| 54 | Bennett Brooks | £12.2M | +14% | FY to Aug 2025 |
| 55 | Martin and Company | £11.1M | +17% | FY to Mar 2025 |
| 56 | SMH Group | £10.6M | +32% | FY to Aug 2024 |
| 57 | TIAA assurance (public sector) | £10.0M | +8% | FY to Mar 2025 |
| 58 | Hurst | £9.9M | +11% | FY to Mar 2025 |
| 59 | Raffingers | £9.3M | +6% | FY to Dec 2023 |
| 60 | Grant Thornton | £377,900 | -49% | FY to Dec 2025 |
The firms no list can rank honestly
Several well-known names are missing — not because they're small, but because no filed account discloses their revenue. That's the point of ranking by filings: where a number doesn't exist, we say so instead of inventing one.
- UHY Hacker Young — group LLP files accounts without disclosing turnover
- Haines Watts — network of separate regional partnerships — no consolidated UK filing exists
- AAB — no consolidated UK filing in scope; entity-level filings only
- Duncan & Toplis — main entities file under the small-companies regime (no turnover disclosed)
- Beever and Struthers — converted to a Ltd in 2025; first accounts not yet due
- Streets — files under the small-companies regime (no turnover disclosed)
- Quantuma (K3 Capital) — UK entities file as audit-exempt subsidiaries of an offshore-listed parent
- Hillier Hopkins — LLP files under the small-companies regime
- Moore UK (network) — independent regional member firms — no single UK filing
- Shaw Gibbs — no consolidated filing with disclosed turnover in scope
- EKWilliams — under review — filed turnover not yet verified as comparable fee income
- ETL Global UK — under review — network holdco composition unverified
How this list is built
Source. The latest annual accounts each firm filed at Companies House. Where a firm files consolidated group accounts, the group figure is used; the entity ranked is named under each firm. Where a firm filed a transition period longer or shorter than twelve months (flagged in the Accounts column), the table shows the filed figure but the firm is ranked on its annualised equivalent.
Who counts as an accountancy firm. Accountancy, audit and tax practices, plus restructuring & insolvency firms (tagged in the table). We exclude umbrella/payroll companies whose "turnover" is gross contractor pay, intra-network service companies (the EY/KPMG recharge vehicles that out-bill most real firms), fund-administration businesses, and firms misfiled under the accountancy SIC codes.
Why some numbers differ from the firm's press release. Survey-based league tables report "fee income", which firms self-declare and may include network or international revenue. Filed turnover is what the firm's auditors signed off for the legal entity — narrower for some (RSM, whose UK business spans sibling LLPs with no single consolidated filing), and more honest for most.
Why this isn't a top 100. Most UK accountancy firms below roughly £10M in fees file under the small-companies regime, which doesn't require a turnover line. A truthful top 100 by filed accounts doesn't exist — any list claiming one is estimating the bottom half. We rank to 50, publish the next 10, and extend as more firms' filings disclose revenue.
Cadence. Rebuilt monthly as new accounts land. Spot a firm we've missed or misread? Tell us — the methodology only works if it's challenged.
Quick answers
- What is the largest accountancy firm in the UK?
- PwC is the UK's largest accountancy firm by filed turnover, reporting £6.35B in its latest accounts (FY to Jun 2025) with 33,770 staff.
- Who are the Big Four accounting firms?
- PwC, Deloitte, EY and KPMG. Between them they billed £19.41B in their latest filed UK accounts — 80% of everything billed by the top 60 firms on this list.
- How many UK accountancy firms turn over more than £100M?
- 17 firms on this list filed accounts showing turnover above £100M. Most are household-name firms or private-equity-backed consolidation groups built by acquiring regional practices.
- How is this list different from other top accounting firm rankings?
- Survey-based league tables rank by self-declared fee income. This list ranks by the turnover line in each firm's own filed Companies House accounts, with umbrella companies, intra-network service entities and misfiled holding companies excluded — and it names the firms whose filings don't disclose revenue rather than estimating them.