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Largest accounting companies – the United Kingdom (2026)

A ranking of active companies based on the latest available reported revenue.

  • 17 companies
  • Displayed in GBP
  • Updated 2026-08-17
Ranked companies: Largest accounting companies – the United Kingdom
Rank Company Industry Latest revenue Profit/loss Employees Year Website
1 BLICK ROTHENBERG LIMITED Sign up for full profile Accounting and auditing activities; Bookkeeping activities; Tax consultancy; Other business support service activities n.e.c. £83,617,114 £15,966,687 813 2025 Register free to reveal
2 CONTRACTOR UMBRELLA LIMITED Sign up for full profile Accounting and auditing activities £78,374,568 -£86,732 656 2025 Register free to reveal
3 LYCATEL SERVICES LIMITED Sign up for full profile Solicitors; Bookkeeping activities; Combined office administrative service activities £34,483,366 -£10,598,126 151 2024 Register free to reveal
4 LEONARD CURTIS (UK) LIMITED Sign up for full profile Accounting and auditing activities £33,078,924 £6,808,988 245 2025 Register free to reveal
5 OLD MILL ACCOUNTANCY LIMITED Sign up for full profile Accounting and auditing activities £22,357,985 £1,414,980 190 2025 Register free to reveal
6 BUZZACOTT LIVINGSTONE LIMITED Sign up for full profile Accounting and auditing activities £16,600,507 £4,426,989 Not available 2025 Register free to reveal
7 WRIGHT VIGAR LIMITED Sign up for full profile Accounting and auditing activities; Tax consultancy £12,769,000 £1,759,000 192 2025 Register free to reveal
8 BENNETT BROOKS & CO LIMITED Sign up for full profile Accounting and auditing activities; Tax consultancy £12,228,301 £1,386,907 156 2025 Register free to reveal
9 SARGENT-DISC LIMITED Sign up for full profile Bookkeeping activities £12,174,835 -£283,001 61 2025 Register free to reveal
10 MARTIN AND COMPANY ACCOUNTANTS LIMITED Sign up for full profile Accounting and auditing activities £11,064,614 £3,207,020 77 2025 Register free to reveal
11 FISCAL SOLUTIONS LIMITED Sign up for full profile Accounting and auditing activities; Other business support service activities n.e.c. £5,853,774 £2,057,787 Not available 2025 Register free to reveal
12 DUNCAN & TOPLIS AUDIT LIMITED Sign up for full profile Accounting and auditing activities £4,852,000 £34,000 Not available 2025 Register free to reveal
13 ATOZ SERVICES UK LTD Sign up for full profile Accounting and auditing activities £3,482,069 £233,481 39 2024 Register free to reveal
14 PROFESSIONAL GAME ACADEMY AUDIT COMPANY LIMITED Sign up for full profile Accounting and auditing activities £2,389,753 £80 29 2025 Register free to reveal
15 HILLIER HOPKINS ACCOUNTANTS LIMITED Sign up for full profile Accounting and auditing activities £2,377,450 -£119,839 25 2025 Register free to reveal
16 ZENITH AUDIT LTD Sign up for full profile Accounting and auditing activities; Management consultancy activities other than financial management £1,541,880 £325,690 13 2025 Register free to reveal
17 MJH ACCOUNTANTS LIMITED Sign up for full profile Accounting and auditing activities £1,012,439 £246,583 11 2025 Register free to reveal

Source currency retained · FX 2026-06-22