Company lists · Data refreshed September 2026

Top 23 IT services for accounting firms based in London, United Kingdom

RevenueBase identified 845 company matches for IT services for accounting firms associated with London, United Kingdom as of September 2026 and tracks 14,564 professional contacts across them, including 6,700 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for IT services for accounting firms 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 September 27, 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 27, 2026 How this list was built
845Companies
14,564Contacts tracked
6,700Verified emails
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The 23 largest IT services for accounting firms based in London, United Kingdom

Ranked by team size
Top 23 of 845 company matches for IT services for accounting firms based in London, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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 27, 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 27, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 27, 2026501-1,000702 contacts →

Exact match

“We are a fast-growing firm of accountants and business advisers based in London’s Canary Wharf, Leeds and in Manchester.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 27, 20261,001-5,000505 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 27, 2026201-500379 contacts →

Exact match

“Welcome to the new era of accountancy.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-200203 contacts →

Exact match

“Lubbock Fine is an independent accounting, tax, audit and advisory firm in the City of London.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 27, 202611-50133 contacts →

Exact match

“Traditional accountants do a great job of the numbers, but that's often as far as the service goes.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 27, 20261,001-5,000102 contacts →

Exact match

“With more than 2,500 people spanning our office network, we provide an extensive spectrum of personalised services, encompassing accounting, audit, tax, advisory, and business…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-20099 contacts →

Exact match

“OryxAlign creates true alignment that delivers the right outcomes for all.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-20091 contacts →

Exact match

“We focus on understanding your individual business needs.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-20058 contacts →

Exact match

“We are on a mission to help accountants to grow their accountancy practice and become more profitable.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 27, 202611-5055 contacts →

Exact match

“Bourner Bullock is a firm of Chartered Accountants with over 130 years of experience, based in the West End of London, offering a wide range of services.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-20053 contacts →

Exact match

“Bright Grahame Murray is a medium-sized firm of Chartered Accountants based in Kensington, London, SW7.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-20053 contacts →

Exact match

“Est.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 27, 202611-5053 contacts →

Exact match

“At Artifin Accountants we strive to provide a more open experience of accounting services for business owners.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 27, 202611-5051 contacts →

Exact match

“We’ve been around for a while now, celebrating our 50th anniversary in 2020.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 27, 202611-5051 contacts →

Exact match

“Empowering Businesses to Thrive Through Financial Clarity | Adroit Accountax We're a team of passionate and experienced accountants dedicated to your business success.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-20048 contacts →

Exact match

“ACCOUNTAX.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-20043 contacts →

Exact match

“Chase IT Global delivers enterprise IT field services, migrations and rollout projects wherever our clients need us.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 27, 202611-5043 contacts →

Exact match

“Q4 Accounting is a powerful network of efficient and eminent accounting professionals.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-20042 contacts →

Exact match

“Diacron Group provides accounting, tax and corporate services.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Sep 27, 202611-5042 contacts →

Exact match

“Based in London, Guildford, Essex and Bristol, ChadSan are dedicated to providing relationship focused services underpinned by the technology that is revolutionising the…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Sep 27, 202611-5042 contacts →

Exact match

“At PSB Accountants, we put your goals and aspirations first.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 27, 2026201-50040 contacts →

Exact match

“Accounting.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 23 of 845 IT services for accounting firms based in London, United Kingdom

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IT services for accounting firms based in London, United Kingdom at a glance

As of Sep 27, 2026
46.0%Verified-email coverage
17.2Average contacts per company
1-10Median size (employees)
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
574
11-50
202
51-200
44
201-500
8
501-1,000
6
1,001-5,000
5
5,001-10,000
1
10001+
1

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 845 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 “IT services for accounting 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 6,700 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 27, 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 “IT services for accounting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT services for accounting firms are there based in London, United Kingdom?

RevenueBase identified 845 company matches for IT services for accounting firms associated with London, 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 in the United Kingdom has the most IT services for accounting firms?

London leads the United Kingdom with 845 company records, followed by Manchester (94) and Birmingham (68).

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 6,700 professional contacts with verified work emails tracked across these 845 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 27, 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.