Company lists · Data refreshed August 2026

Top 25 Accounting consulting firms based in London, United Kingdom

Name: Accounting consulting firms based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Aug 30, 2026 1,231 companies tracked

There are 1,231 accounting consulting firms headquartered in London, United Kingdom (RevenueBase, August 2026). RevenueBase tracks 48,625 professional contacts across them, including 11,521 with verified work emails and 2,208 with mobile numbers. London is the largest hub.

This list covers accounting consulting firms headquartered in London, United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed August 30, 2026.

1,231Companies

48,625Contacts tracked

11,521Verified emails

2,208Mobile numbers

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The 25 largest accounting consulting firms based in London, United Kingdom

Ranked by team size

Top 25 of 1,231 accounting consulting firms based in London, United Kingdom, ranked by team size, largest first. Data refreshed Aug 30, 2026. Evidence rates how directly each company's own description names accounting consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts	Verified emails
1	Kpmg UKIndirect evidence “Make growth happen.” Source: company website · checked Aug 30, 2026	London, United Kingdom	10001+	14,427	808
2	PWC UKIndirect evidence Source: company website · checked Aug 30, 2026	London, United Kingdom	10001+	11,074	3,838
3	RSMPartial evidence “RSM is a leading global network of assurance, tax and consulting firms focused on the middle-market.” Source: company website · checked Aug 30, 2026	London, United Kingdom	10001+	3,569	62
4	XeinadinIndirect evidence “We are a leading provider of accountancy services and business advice for small and medium-sized enterprises and individuals across the UK and Ireland.” Source: company website · checked Aug 30, 2026	London, United Kingdom	1,001-5,000	993	670
5	PKF LittlejohnIndirect evidence “We are a fast-growing firm of accountants and business advisers based in London’s Canary Wharf, Leeds and in Manchester.” Source: company website · checked Aug 30, 2026	London, United Kingdom	501-1,000	710	419
6	Blick RothenbergPartial evidence “Blick Rothenberg is a leading tax, accounting and business advisory firm founded on personal integrity and technical expertise.” Source: company website · checked Aug 30, 2026	London, United Kingdom	501-1,000	698	483
7	NEXIAStrong evidence “Nexia is a leading worldwide network of independent accounting and consulting firms.” Source: company website · checked Aug 30, 2026	London, United Kingdom	10001+	669	11
8	HaysmacIndirect evidence “HaysMac is an award‑winning accountancy, tax and advisory firm, known for delivering expert, partner‑led advice to ambitious organisations and individuals.” Source: company website · checked Aug 30, 2026	London, United Kingdom	501-1,000	660	322
9	Mazars In The UKIndirect evidence Source: company website · checked Aug 30, 2026	London, United Kingdom	1,001-5,000	516	231
10	Kreston GlobalPartial evidence “Kreston is a global network of innovative, like-minded accounting firms that puts trusted relationships and exceptional care at the heart of everything it does.” Source: company website · checked Aug 30, 2026	London, United Kingdom	10001+	504	10
11	GravitaIndirect evidence “Welcome to the new era of accountancy.” Source: company website · checked Aug 30, 2026	London, United Kingdom	201-500	376	287
12	AffiniaIndirect evidence “Accountants, Tax and Business Advisers.” Source: company website · checked Aug 30, 2026	London, United Kingdom	201-500	370	198
13	HW Fisher, Part Of The Sumer GroupIndirect evidence “HW Fisher is part of the Sumer Group, a top 12 accountancy practice.” Source: company website · checked Aug 30, 2026	London, United Kingdom	201-500	340	206
14	Mercer & HoleIndirect evidence “A forward-thinking accountancy firm with our clients’ vision at the centre of everything we do.” Source: company website · checked Aug 30, 2026	London, United Kingdom	201-500	283	190
15	Russell Bedford InternationalIndirect evidence “Established in 1983, Russell Bedford is a global network of independent firms of accountants, auditors, tax advisers and business consultants.” Source: company website · checked Aug 30, 2026	London, United Kingdom	1,001-5,000	262	9
16	Gerald EdelmanIndirect evidence “At Gerald Edelman, we help business leaders succeed.” Source: company website · checked Aug 30, 2026	London, United Kingdom	51-200	252	175
17	Lubbock FinePartial evidence “Lubbock Fine is an independent accounting, tax, audit and advisory firm in the City of London.” Source: company website · checked Aug 30, 2026	London, United Kingdom	51-200	199	141
18	Carpenter Box, Part Of The Sumer GroupIndirect evidence “Award-winning Carpenter Box is a leading accountancy firm in the South-East, recognised for innovation, client service, and team excellence.” Source: company website · checked Aug 30, 2026	London, United Kingdom	201-500	195	144
19	Sopher COIndirect evidence “Sopher + Co is one of the most entrepreneurial and progressive firms of accountants, business advisers, tax and corporate finance consultants in London.” Source: company website · checked Aug 30, 2026	London, United Kingdom	201-500	185	102
20	EY Private Client ServicesIndirect evidence “Thoughtfully structuring and managing your tax affairs is more important than ever.” Source: company website · checked Aug 30, 2026	London, United Kingdom	10001+	179	68
21	Beever And StruthersIndirect evidence “Beever and Struthers has merged with Menzies LLP and is now part of one of the UK’s leading accountancy and advisory firms.” Source: company website · checked Aug 30, 2026	London, United Kingdom	201-500	152	68
22	Dixon WilsonIndirect evidence “Dixon Wilson is one of the leading firms of Chartered Accountants based in London.” Source: company website · checked Aug 30, 2026	London, United Kingdom	51-200	151	89
23	Nyman Libson PaulIndirect evidence “Our story began in 1933, as an accountancy firm for those who dared to dream, create, and inspire.” Source: company website · checked Aug 30, 2026	London, United Kingdom	51-200	128	91
24	Ellacotts AccountantsPartial evidence “Ellacotts is one of the largest independent accounting and business advisory firms in the UK and is ranked as a Top 100 Accountancy Firm by Accountancy Age.” Source: company website · checked Aug 30, 2026	London, United Kingdom	51-200	124	82
25	Harris & Trotter LLPIndirect evidence “At Harris & Trotter, we believe your accountant should do a lot more than just report on how your business is doing – he or she should help you identify opportunities to improve…” Source: company website · checked Aug 30, 2026	London, United Kingdom	51-200	115	79

Showing 25 of 1,231 accounting consulting firms based in London, United Kingdom

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Accounting consulting firms based in London, United Kingdom at a glance

As of Aug 30, 2026

1-10Median size (employees)

LondonLargest hub · 1231 HQs

2,208Contacts with mobile numbers

Aug 30, 2026Data refreshed

Companies by employee count

1-10

759

11-50

309

51-200

201-500

501-1,000

1,001-5,000

10001+

Accounting consulting firms by metro in the United Kingdom

Metro	Companies
Accounting consulting firms in London	1231
Accounting consulting firms in Manchester	117
Accounting consulting firms in Birmingham	109
Accounting consulting firms in Bristol	81
Accounting consulting firms in Glasgow	67
Accounting consulting firms in Leeds	63
Accounting consulting firms in Nottingham	50

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among accounting consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
What qualifies: Companies headquartered in London, United Kingdom whose own description of what they do matches “accounting consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among accounting consulting firms, and records with no verified work email. Companies headquartered outside London are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 11,521 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on August 30, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

How many accounting consulting firms are there based in London, United Kingdom?

There are 1,231 accounting consulting firms headquartered in London, United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

Kpmg UK, headquartered in London, tops this list with the largest team on record.

Which city has the most accounting consulting firms?

London leads with 1231 headquartered companies, followed by Manchester (117) and Birmingham (109).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 11,521 verified decision-maker contacts tracked across these 1,231 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 30, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph, the same data that powers RevenueBase's B2B data products and the free research portal.