Company lists · Data refreshed October 2026

Top 24 Tax defense attorneys based in London, United Kingdom

RevenueBase identified 74 company matches for tax defense attorneys associated with London, United Kingdom as of October 2026 and tracks 652 professional contacts across them, including 256 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for tax defense attorneys associated with London, 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 October 22, 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 Oct 22, 2026 How this list was built
74Companies
652Contacts tracked
256Verified emails
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The 24 largest tax defense attorneys based in London, United Kingdom

Ranked by team size
Top 24 of 74 company matches for tax defense attorneys based in London, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 22, 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 Oct 22, 202610001+174 contacts →

Exact match

“Thoughtfully structuring and managing your tax affairs is more important than ever.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Oct 22, 202651-20055 contacts →

Exact match

“The Tax Advisory Partnership is a young and vibrant London-based organisation, which brings together a wealth of wide ranging experience and expertise in all areas of UK and US…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Oct 22, 20261-1028 contacts →

Exact match

“not all accountants are tax specialists and not all tax consultants are accountants" At IBISS & CO we appreciate the value of working together as a team.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Oct 22, 202611-5028 contacts →

Exact match

“WTT provides experienced tax advisers, legal experts and finance professionals.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Oct 22, 202611-5017 contacts →

Exact match

“Laggan is an independent firm providing international tax consultancy, corporate and business advisory services.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Oct 22, 202611-5017 contacts →

Exact match

“A thriving business is always seeking to grow.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Oct 22, 202611-5014 contacts →

Exact match

“Our business is very simple: we are experienced tax specialists with offices in London, Manchester and Solihull.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Oct 22, 202611-5012 contacts →

Exact match

“Qualified US and UK tax advisors.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Oct 22, 202611-5012 contacts →

Exact match

“inTAX is a small, specialist tax firm, whose managing partner and team have many years experience.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Oct 22, 202611-5011 contacts →

Exact match

“AG Tax Limited is a successful and friendly independent firm offering tax compliance and advisory services alongside accounting, bookkeeping and payroll support.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Oct 22, 202611-509 contacts →

Exact match

“We specialise in all forms of taxation, UK and international, direct and indirect.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Oct 22, 20261-109 contacts →

Exact match

“Winslows are a boutique Tax Law firm that specialises in working with other law firms that do not have internal tax departments.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Oct 22, 202611-509 contacts →

Exact match

“Pearson Mckinsey Limited is a provider of business consultancy and tax advisory services.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Oct 22, 202611-509 contacts →

Exact match

“Based in the heart of legal London, we are a modern, energetic, forward looking set of expert tax counsel with wide experience of UK and international tax related matters both as…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Oct 22, 202611-508 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Oct 22, 20261-108 contacts →

Exact match

“With over a decade of experience, we deliver a comprehensive suite of accounting, tax, and advisory services to both private clients and businesses.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Oct 22, 20261-106 contacts →

Exact match

“A deliberately small team of senior personal tax specialists focused on quality, service and providing a “family office experience” to a select number of clients.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Oct 22, 202611-506 contacts →

Exact match

“We are a small highly motivated team based in the City of London that specialises in servicing the needs of clients requiring international accounting and tax advice from around…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Oct 22, 20261-104 contacts →

Exact match

“Hello, and welcome to Vault!”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Oct 22, 20261-104 contacts →

Exact match

“A specialist tax advisory firm focused on complex situations, disputes and tax administrative issues.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Oct 22, 2026501-1,0003 contacts →

Exact match

“Landau Baker Limited merged with BKL in May 2023.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Oct 22, 20261-103 contacts →

Exact match

“We are a boutique law firm, specialising in providing ‘City’ quality, cost-effective tax advice to businesses and professional services firm clients based in the UK and…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Oct 22, 20261-103 contacts →

Exact match

“Tax Lyrical Ltd is a boutique tax advisory firm specialising in expat and international tax, accounting, self-assessment and tax dispute resolution services.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Oct 22, 20261-102 contacts →

Exact match

“We are an independent, HMRC / tax investigations specialist consultancy boutique, offering Tax Investigations, Business Enquiries & Disclosures support to our clients, as well as…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase

Showing 24 of 74 tax defense attorneys based in London, United Kingdom

See the full list, filter by size, metro and specialty, and access 256 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Tax defense attorneys based in London, United Kingdom at a glance

As of Oct 22, 2026
39.3%Verified-email coverage
8.8Average contacts per company
1-10Median size (employees)
Oct 22, 2026Page data refreshed

Companies by employee count

1-10
38
11-50
25
51-200
5
501-1,000
1
1,001-5,000
1
10001+
2

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 74 companies.

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 London, United Kingdom whose business descriptions match “tax defense attorneys” 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 256 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 October 22, 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 defense attorneys”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many tax defense attorneys are there based in London, United Kingdom?

RevenueBase identified 74 company matches for tax defense attorneys associated with London, United Kingdom as of October 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?

EY Private Client Services tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United Kingdom has the most tax defense attorneys?

London leads the United Kingdom with 74 company records, followed by Birmingham (7) and Sheffield (5).

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 256 professional contacts with verified work emails tracked across these 74 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 October 22, 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.