RankingsBiggest Accountancy Firms

The biggest accountancy firms table ranks the top 15 firms in the UK by total UK fee income.

PwC, Deloitte, EY, KPMG, Grant Thornton, BDO, RSM, Smith & Williamson, Moore Stephens, Mazars, PKF UKI, Saffery Champness, Haines Watts, Crowe Clark Whitehill and UHY Hacker Young are the leading firms in the UK accountancy industry. The firms’ services span advisory, audit and assurance, tax, risk consulting and management consulting, and capital and transaction management. All 15 firms work across a variety of industries, including aerospace, automotive, banking, construction, hospitality, pharmaceuticals, transportation, wealth management, media, government and public sector, manufacturing, private equity, technology, oil and energy, financial services, healthcare, insurance, professional services, real estate, retail, and telecommunications.

While the Big 4 firms of PwC, Deloitte, EY and KPMG have held steady at the top of the table for numerous years, the firms in fifth to fifteenth position have also experienced notable growth, expanding their practices to extend their client offering and provide expertise in a number of specialist industries. Audit in particular is becoming increasing competitive across the Top 6 firms.

Collectively, the biggest accountancy firms have nearly 5,000 partners. The current leaders of each UK firm are Kevin Ellis (PwC), David Sproul (Deloitte), Steve Varley (EY), Bill Michael (KPMG), Sacha Romanovitch (Grant Thornton), Paui Eagland (BDO), Laurence Longe (RSM), David Cobb and Kevin Stopps (Smith & Williamson), Phil Verity (Mazars), Carmine Papa (PKF UKI), Rob Elliott (Saffery Champness), Andy Minifie (Haines Watts), David Mellor (Crowe Clark Whitehill), and Jon Warsop (UHY Hacker Young.

Ranking vs 2016
Name
UK income fee(£m)
% change vs 2016
Year end
UK partners
Fee per partner (£m)

Biggest Accountancy Firms

The Top 50+50 Accountancy Firms 2017 champions excellence in the accountancy industry by ranking UK accountancy firms by total UK fee income Read More...

View
Biggest Accountancy Firms

About Deloitte

Biggest Accountancy Firms

The Top 50+50 Accountancy Firms 2017 champions excellence in the accountancy industry by ranking UK accountancy firms by total UK fee income Read More...

View

Biggest Accountancy Firms

The Top 50+50 Accountancy Firms 2017 champions excellence in the accountancy industry by ranking UK accountancy firms by total UK fee income Read More...

View

Biggest Accountancy Firms

The Top 50+50 Accountancy Firms 2017 champions excellence in the accountancy industry by ranking UK accountancy firms by total UK fee income Read More...

View
Biggest Accountancy Firms

About Grant Thornton UK

Biggest Accountancy Firms

The Top 50+50 Accountancy Firms 2017 champions excellence in the accountancy industry by ranking UK accountancy firms by total UK fee income Read More...

View

Biggest Accountancy Firms

The Top 50+50 Accountancy Firms 2017 champions excellence in the accountancy industry by ranking UK accountancy firms by total UK fee income Read More...

View

Biggest Accountancy Firms

The Top 50+50 Accountancy Firms 2017 champions excellence in the accountancy industry by ranking UK accountancy firms by total UK fee income Read More...

View
Biggest Accountancy Firms

About Evelyn Partners

Biggest Accountancy Firms

The Top 50+50 Accountancy Firms 2017 champions excellence in the accountancy industry by ranking UK accountancy firms by total UK fee income Read More...

View
Biggest Accountancy Firms

About Moore UK

Biggest Accountancy Firms

The Top 50+50 Accountancy Firms 2017 champions excellence in the accountancy industry by ranking UK accountancy firms by total UK fee income Read More...

View
Biggest Accountancy Firms

About Forvis Mazars

Biggest Accountancy Firms

The Top 50+50 Accountancy Firms 2017 champions excellence in the accountancy industry by ranking UK accountancy firms by total UK fee income Read More...

View

Biggest Accountancy Firms

The Top 50+50 Accountancy Firms 2017 champions excellence in the accountancy industry by ranking UK accountancy firms by total UK fee income Read More...

View

Biggest Accountancy Firms

The Top 50+50 Accountancy Firms 2017 champions excellence in the accountancy industry by ranking UK accountancy firms by total UK fee income Read More...

View
Biggest Accountancy Firms

About Haines Watts

Biggest Accountancy Firms

The Top 50+50 Accountancy Firms 2017 champions excellence in the accountancy industry by ranking UK accountancy firms by total UK fee income Read More...

View
Biggest Accountancy Firms

About Crowe UK

Biggest Accountancy Firms

The Top 50+50 Accountancy Firms 2017 champions excellence in the accountancy industry by ranking UK accountancy firms by total UK fee income Read More...

View
Biggest Accountancy Firms

About UHY Hacker Young

Biggest Accountancy Firms

The Top 50+50 Accountancy Firms 2017 champions excellence in the accountancy industry by ranking UK accountancy firms by total UK fee income Read More...

View

Related Content

The tech innovation top 10: Tools reshaping UK practice in 2026
AI in Accounting

The tech innovation top 10: Tools reshaping UK practice in 2026

1d nikita alexander

The tech innovation top 10: Tools reshaping UK pra...

Practice leaders are shifting from blue-sky tech promises to real operational ROI. Explore the top 10 tech innovations reshaping UK accounting firms. ...

View
35 Under 35 2026: Unveiling the Final Wave of Winners
35 under 35

35 Under 35 2026: Unveiling the Final Wave of Winners

5d nikita alexander

35 Under 35 2026: Unveiling the Final Wave of Winn...

The final wave of Accountancy Age’s 35 Under 35 ranking for 2026 is here! Celebrating eight dynamic professionals redefining UK accounting. From becom...

View
35 Under 35 2026: Unveiling the Third Wave of Winners
35 under 35

35 Under 35 2026: Unveiling the Third Wave of Winners

1w Accountancy Age

35 Under 35 2026: Unveiling the Third Wave of Winn...

Wave 3 of the Accountancy Age 35 Under 35 for 2026 profiles nine exceptional UK practice leaders driving real transformation across the profession. Fr...

View
MTD is an opportunity, not a chore
AI in Accounting

MTD is an opportunity, not a chore

1w Reshma Roy Suvish, Director of the Accountants Channel and Partnerships (UK and Europe) Zoho

MTD is an opportunity, not a chore

HMRC’s MTD ITSA rollout forces a shift to quarterly filing. Discover how UK accounting firms can eliminate the "shadow tax" and turn compliance into r...

View
35 Under 35 2026: Unveiling the Second Wave of Winners
35 under 35

35 Under 35 2026: Unveiling the Second Wave of Winners

2w nikita alexander

35 Under 35 2026: Unveiling the Second Wave of Win...

The second wave of Accountancy Age’s 35 Under 35 ranking for 2026 is here. It highlights nine exceptional professionals who are redefining UK accounti...

View
Submissions Open for the 2026 Accountancy Age Top 50+50
50+50

Submissions Open for the 2026 Accountancy Age Top 50+50

2w Accountancy Age

Submissions Open for the 2026 Accountancy Age Top ...

Submissions are officially open for the 2026 Accountancy Age Top 50+50 Rankings, run in partnership with Intuit QuickBooks. Now in its second decade, ...

View
35 Under 35 2026: Unveiling the First Wave of Winners
35 under 35

35 Under 35 2026: Unveiling the First Wave of Winners

2w Accountancy Age

35 Under 35 2026: Unveiling the First Wave of Winn...

The first wave of Accountancy Age’s 35 Under 35 ranking for 2026 is here. Explore how this year’s honourees are reshaping UK accounting, from scaling ...

View
The quiet tech revolution reshaping UK accountancy in 2026
Accounting Software

The quiet tech revolution reshaping UK accountancy in 2026

2w nikita alexander

The quiet tech revolution reshaping UK accountancy...

UK firms are moving past AI hype to embrace automated workflows and cloud infrastructure that slash routine admin, ensure MTD compliance and unlock ad...

View