Company lists · Data refreshed September 2026

Top 25 501c3 accounting firms based in the United Kingdom

RevenueBase identified 369 501c3 accounting firms headquartered in the United Kingdom as of September 2026 and tracks 1,620 professional contacts across them, including 590 with verified work emails. London is the largest hub.

This list covers 501c3 accounting firms headquartered in the 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 27, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 27, 2026 86% judged on-target in blind review
369Companies
1,620Contacts tracked
590Verified emails
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The 25 largest 501c3 accounting firms based in the United Kingdom

Ranked by team size
Top 25 of 369 501c3 accounting firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to 501c3 accounting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceHemel Hempstead, United KingdomHQ checked Sep 27, 2026501-1,000102 contacts →

Indirect evidence

“SJD is now Caroola Accountancy!”

Source: RevenueBase Database · checked Sep 27, 2026
2Indirect evidenceLondon, United KingdomHQ checked Sep 27, 202651-20048 contacts →

Indirect evidence

“ACCOUNTAX.”

Source: RevenueBase Database · checked Sep 27, 2026
3Partial evidenceCrawley, United KingdomHQ checked Sep 27, 202611-5046 contacts →

Partial evidence

“Situated in Crawley, close to Gatwick in West Sussex, Richard Place Dobson has been helping businesses and individuals with their accounting and taxation affairs for over 100…”

Source: RevenueBase Database · checked Sep 27, 2026
4Indirect evidenceFlax Bourton, United KingdomHQ checked Sep 27, 202651-20044 contacts →

Indirect evidence

“Since 1969, Burton Sweet has grown into an established firm in the South West.”

Source: RevenueBase Database · checked Sep 27, 2026
5Partial evidenceBrighton, United KingdomHQ checked Sep 27, 202611-5042 contacts →

Partial evidence

“As you would expect from a firm of chartered accountants, we offer a comprehensive range of tax and accounting services.”

Source: RevenueBase Database · checked Sep 27, 2026
6Indirect evidenceWatford, United KingdomHQ checked Sep 27, 202611-5041 contacts →

Indirect evidence

“Myers Clark is a firm of chartered accountants with over 100 year history of providing excellence to all its clients.”

Source: RevenueBase Database · checked Sep 27, 2026
7Indirect evidenceWoking, United KingdomHQ checked Sep 27, 202611-5023 contacts →

Indirect evidence

“JS2 is a firm of Chartered Accountants providing a specialist financial services to charities and the not-for-profit sector throughout London and the South East.”

Source: RevenueBase Database · checked Sep 27, 2026
8Indirect evidenceHarrow, United KingdomHQ checked Sep 27, 202611-5023 contacts →

Indirect evidence

“Established in 2012, Makesworth Limited has earned a stellar reputation for delivering exceptional accountancy and advisory services to a diverse range of clients.”

Source: RevenueBase Database · checked Sep 27, 2026
9Indirect evidenceGalashiels, United KingdomHQ checked Sep 27, 202651-20022 contacts →

Indirect evidence

“Chartered Accountancy firm with offices in Biggar, Edinburgh, Galashiels, Hawick, Langholm and Peebles.”

Source: RevenueBase Database · checked Sep 27, 2026
10Indirect evidenceLondon, United KingdomHQ checked Sep 27, 20261-1021 contacts →

Indirect evidence

“JR Accounts are a well-established firm of Chartered Certified Accountants, Registered Auditors and Business Advisors.”

Source: RevenueBase Database · checked Sep 27, 2026
11Partial evidenceGomshall, United KingdomHQ checked Sep 27, 202611-5020 contacts →

Partial evidence

“Making the numbers work for you… Brewers Chartered Accountants offers a comprehensive range of tax and accounting services for privately-owned businesses and individuals.”

Source: RevenueBase Database · checked Sep 27, 2026
12Indirect evidenceCrowthorne, United KingdomHQ checked Sep 27, 202611-5016 contacts →

Indirect evidence

“At PKB, our chartered certified accountants, auditors and advisors provide compliance and consultancy services to businesses and individuals from offices in Crowthorne, Berkshire…”

Source: RevenueBase Database · checked Sep 27, 2026
13Partial evidenceCroydon, United KingdomHQ checked Sep 27, 202611-5016 contacts →

Partial evidence

“CWF & Partners Ltd is an accounting firm based at Freedman House, Christopher Wren Yard, 117 High Street, CROYDON, United Kingdom.”

Source: RevenueBase Database · checked Sep 27, 2026
14Indirect evidenceBurnham, United KingdomHQ checked Sep 27, 202611-5016 contacts →

Indirect evidence

“If you are looking for an accountant a little out of town with easy access and ample parking, Eacotts makes an excellent choice, being located at Grenville Court, in Burnham…”

Source: RevenueBase Database · checked Sep 27, 2026
15Indirect evidenceSalford, United KingdomHQ checked Sep 27, 20261-1016 contacts →

Indirect evidence

“A North West based Chartered Accountancy firm covering all areas of accountancy from self-assessment, freelancers and contractors, through to medium sized Limited Companies.”

Source: RevenueBase Database · checked Sep 27, 2026
16Indirect evidenceGlasgow, United KingdomHQ checked Sep 27, 202611-5016 contacts →

Indirect evidence

“At Wallace White, we believe great advice should be not only accessible, but always clear and grounded in your goals.”

Source: RevenueBase Database · checked Sep 27, 2026
17Indirect evidenceLondon, United KingdomHQ checked Sep 27, 202611-5015 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 27, 2026
18Partial evidenceEastbourne, United KingdomHQ checked Sep 27, 202611-5012 contacts →

Partial evidence

“Helping limited companies, sole traders, charities and churches in their accounting, tax, audit and regulatory requirements.”

Source: RevenueBase Database · checked Sep 27, 2026
19Indirect evidenceLondon, United KingdomHQ checked Sep 27, 202611-5012 contacts →

Indirect evidence

“FUSE ACCOUNTANTS LLP is an independent Chartered Certified firm of accountants based in Highgate Village, London.”

Source: RevenueBase Database · checked Sep 27, 2026
20Indirect evidenceAbingdon, United KingdomHQ checked Sep 27, 20261-1011 contacts →

Indirect evidence

“It’s any good accountants’ job to help you crunch your numbers, make sure your business is compliant and to save you money when submitting your taxes.”

Source: RevenueBase Database · checked Sep 27, 2026
21Indirect evidenceWitney, United KingdomHQ checked Sep 27, 202611-5011 contacts →

Indirect evidence

“We are a team of qualified Chartered Accountants based in Witney, Oxfordshire, UK.”

Source: RevenueBase Database · checked Sep 27, 2026
22Indirect evidenceHertford, United KingdomHQ checked Sep 27, 202611-5011 contacts →

Indirect evidence

“Chartered Accountants.”

Source: RevenueBase Database · checked Sep 27, 2026
23Indirect evidenceSouthend-on-sea, United KingdomHQ checked Sep 27, 202611-5011 contacts →

Indirect evidence

“We are TBL Accountants, an independent firm of Chartered Certified Accountants serving Essex, with offices based in Southend-on-Sea and Billericay.”

Source: RevenueBase Database · checked Sep 27, 2026
24Indirect evidenceNorwich, United KingdomHQ checked Sep 27, 202611-5011 contacts →

Indirect evidence

“A firm of independent Chartered Certified Accountants in East Anglia offering accounts, audit, taxation, payroll and Business Advisory and support services.”

Source: RevenueBase Database · checked Sep 27, 2026
25Indirect evidenceLondon, United KingdomHQ checked Sep 27, 20261-1011 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 27, 2026

Showing 25 of 369 501c3 accounting firms based in the United Kingdom

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501c3 accounting firms based in the United Kingdom at a glance

As of Sep 27, 2026
36.4%Verified-email coverage
4.4Average contacts per company
1-10Median size (employees)
22.5%Largest-city concentration · London
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
256
11-50
100
51-200
5
501-1,000
1

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 369 companies.

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 501c3 accounting firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United Kingdom whose own description of what they do matches “501c3 accounting firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names 501c3 accounting firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among 501c3 accounting firms, and records with no verified work email. Companies headquartered outside United Kingdom 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 its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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, 590 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 September 27, 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.

501c3 accounting firms by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names 501c3 accounting firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many 501c3 accounting firms are there based in the United Kingdom?

RevenueBase identified 369 501c3 accounting firms headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

SJD Accountancy, headquartered in Hemel Hempstead, tops this list with the largest team on record.

Which city has the most 501c3 accounting firms?

London leads with 83 headquartered companies, followed by Manchester (8) and Birmingham (7).

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 590 verified decision-maker contacts tracked across these 369 companies.

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 Smart Search, 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.