Company lists · Data refreshed September 2026

Top 25 Tax law firms based in the United Kingdom

RevenueBase identified 2,472 company matches for tax law firms associated with the United Kingdom as of September 2026 and tracks 73,897 professional contacts across them, including 33,772 with verified work emails and 5,944 with mobile numbers. London is the largest hub.

This list covers company matches for tax law firms associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 6, 2026 How this list was built
2,472Companies
73,897Contacts tracked
33,772Verified emails
5,944Mobile numbers
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The 25 largest tax law firms based in the United Kingdom

Ranked by team size
Top 25 of 2,472 company matches for tax law firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Sep 6, 20265,001-10,0006,933 contacts →

Exact match

“BDO LLP is an accountancy and business advisory firm that provides Audit, Tax, Deals, and Consulting, Risk & Outsourcing (CR & O) services to entrepreneurial, growing and…”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 6, 2026n/a6,284 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
3Exact matchBrighton, United KingdomHQ recorded Sep 6, 2026n/a2,042 contacts →

Exact match

“A traditional general practice, with a twist.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 6, 20261,001-5,0001,951 contacts →

Exact match

“Slaughter and May is regarded as one of the most prestigious law firms in the world.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 6, 20261,001-5,0001,930 contacts →

Exact match

“As a fast growing UK accounting and advisory firm, we’ve been there, as a trusted partner, helping businesses and individuals meet challenges and seize opportunities across…”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 6, 20261,001-5,0001,376 contacts →

Exact match

“Based in London, Mishcon de Reya services an international community of clients and provides advice in situations where the constraints of geography often do not apply.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
7Exact matchLiverpool, United KingdomHQ recorded Sep 6, 20261,001-5,0001,231 contacts →

Exact match

“An unpredictable world calls for a progressive-thinking law firm that’s aligned to your ambitions.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 6, 2026501-1,0001,151 contacts →

Exact match

“At Moore Kingston Smith, we believe in the potential of people to make a positive impact, fuelled by the power of genuine understanding.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
9Exact matchUk And Ireland, United KingdomHQ recorded Sep 6, 20261,001-5,0001,125 contacts →

Exact match

“We provide services that help businesses at every stage of the lifecycle.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
10Exact matchLondon, United Kingdom1,001-5,000910 contacts →

Exact match

“For the past 125 years we have been proud to assist some of the world's most remarkable individuals and organisations in realising their ambitions and using private capital to…”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
11Exact matchSteyning, United KingdomHQ recorded Sep 6, 20261,001-5,000901 contacts →

Exact match

“TC Group | 0330 088 | At TC Group, everything we do is anchored in our purpose: shaping stronger businesses and building secure and meaningful futures.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
12Exact matchCovent Garden, United KingdomHQ recorded Sep 6, 2026501-1,000701 contacts →

Exact match

“Blick Rothenberg is a leading tax, accounting and business advisory firm founded on personal integrity and technical expertise.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
13Exact matchExeter, United KingdomHQ recorded Sep 6, 2026501-1,000700 contacts →

Exact match

“Any good accountancy firm can help with your finance, audit, and tax.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 6, 2026201-500693 contacts →

Exact match

“Farrer & Co is synonymous with the highest quality legal advice and service.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 6, 2026501-1,000591 contacts →

Exact match

“We’re Forsters, a leading law firm renowned for our private client and real estate focus.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
16Exact matchLeeds, United KingdomHQ recorded Sep 6, 2026201-500582 contacts →

Exact match

“Welcome to Walker Morris - a UK-headquartered law firm with international reach.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
17Exact matchCarlisle, United KingdomHQ recorded Sep 6, 2026501-1,000579 contacts →

Exact match

“Armstrong Watson has been advising and protecting clients across the North of England and Scotland since 1867.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
18Exact matchExeter, United KingdomHQ recorded Sep 6, 2026501-1,000564 contacts →

Exact match

“Refreshingly straightforward and open in our approach, we invest in our relationships and will care as much as you do about the outcome, whether that’s delivering your commercial…”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
19Exact matchTunbridge Wells, United KingdomHQ recorded Sep 6, 2026501-1,000486 contacts →

Exact match

“At Cripps, we’re lawyers for business and life.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 6, 2026201-500460 contacts →

Exact match

“We are a London based, full-service law firm, specialising in providing straightforward advice to ambitious clients ranging from entrepreneurial businesses, family offices and…”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
21Exact matchStourbridge, United KingdomHQ recorded Sep 6, 2026501-1,000413 contacts →

Exact match

“Talbots Law can offer your business a wide range of legal services - no matter what business you are in.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
22Exact matchBrighton, United KingdomHQ recorded Sep 6, 2026201-500408 contacts →

Exact match

“DMH Stallard is an award-winning full service South East law firm with offices in London, Brighton, Gatwick, Guildford and Horsham and a 50 year pedigree based on building long…”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 6, 2026201-500379 contacts →

Exact match

“Welcome to the new era of accountancy.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
24Exact matchColchester, United KingdomHQ recorded Sep 6, 20261,001-5,000375 contacts →

Exact match

“Accountants, Tax and Business Advisers.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Sep 6, 2026201-500360 contacts →

Exact match

“A full service law firm with a diverse client base, Winckworth Sherwood prides itself on providing market leading advice across a broad range of sectors and markets.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase

Showing 25 of 2,472 tax law firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 33,772 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Tax law firms based in the United Kingdom at a glance

As of Sep 6, 2026
45.7%Verified-email coverage
8.0%Mobile-number coverage
29.9Average contacts per company
1-10Median size (employees)
25.4%Largest-city concentration · London
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
1,295
11-50
823
51-200
239
201-500
43
501-1,000
21
1,001-5,000
16
5,001-10,000
3
10001+
4

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United Kingdom whose business descriptions match “tax law firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 33,772 professional contacts with verified work emails across the full matched dataset. 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 September 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “tax law firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many tax law firms are there based in the United Kingdom?

RevenueBase identified 2,472 company matches for tax law firms associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

BDO UK tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most tax law firms?

London leads with 628 company records, followed by Manchester (57) and Birmingham (50).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 33,772 professional contacts with verified work emails tracked across these 2,472 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 6, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 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 with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.