Company lists · Data refreshed September 2026

Top 25 Intercompany accounting firms based in the United Kingdom

Name: Intercompany accounting firms based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 523 companies tracked

RevenueBase identified 523 intercompany accounting firms headquartered in the United Kingdom as of September 2026 and tracks 2,956 professional contacts across them, including 1,222 with verified work emails. London is the largest hub.

This list covers intercompany 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 28, 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 28, 2026 86% judged on-target in blind review

523Companies

2,956Contacts tracked

1,222Verified emails

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The 25 largest intercompany accounting firms based in the United Kingdom

Ranked by team size

Top 25 of 523 intercompany accounting firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to intercompany 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Armstrong Watson	Indirect evidence	Carlisle, United KingdomHQ checked Sep 28, 2026	501-1,000	579 contacts →
	Indirect evidence “Armstrong Watson has been advising and protecting clients across the North of England and Scotland since 1867.” Source: RevenueBase Database · checked Sep 28, 2026
2	Ellacotts Accountants	Partial evidence	Banbury, United KingdomHQ checked Sep 28, 2026	51-200	120 contacts →
	Partial 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: RevenueBase Database · checked Sep 28, 2026
3	FLB Accountants LLP	Partial evidence	Wokingham, United KingdomHQ checked Sep 28, 2026	51-200	107 contacts →
	Partial evidence “FLB is a firm of accountants providing core accounting services to a range of clients from start-ups, owner-managed businesses and private clients, to large corporates and…” Source: RevenueBase Database · checked Sep 28, 2026
4	SJD Accountancy	Indirect evidence	Hemel Hempstead, United KingdomHQ checked Sep 28, 2026	501-1,000	102 contacts →
	Indirect evidence “SJD is now Caroola Accountancy!” Source: RevenueBase Database · checked Sep 28, 2026
5	Merali's Chartered Accountants & Registered Auditors	Indirect evidence	Harrow, United KingdomHQ checked Sep 28, 2026	11-50	64 contacts →
	Indirect evidence “Meralis Chartered Accountants and Registered Auditors were set up by Mahmud Merali to provide accountancy, auditing and consultancy services to clients both at national and…” Source: RevenueBase Database · checked Sep 28, 2026
6	Alliott Global Alliance	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	5,001-10,000	59 contacts →
	Partial evidence “With 240 member firms in 100+ countries, Alliott Global Alliance® is a multidisciplinary alliance of independent law and accounting firms working Together as One.” Source: RevenueBase Database · checked Sep 28, 2026
7	Accountax Consultants UK Limited	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	48 contacts →
	Indirect evidence “ACCOUNTAX.” Source: RevenueBase Database · checked Sep 28, 2026
8	Seymour Taylor	Indirect evidence	High Wycombe, United KingdomHQ checked Sep 28, 2026	11-50	47 contacts →
	Indirect evidence “Seymour Taylor has been helping businesses and individuals achieve their financial goals for over 100 years through accountancy, tax and business advisory services.” Source: RevenueBase Database · checked Sep 28, 2026
9	Diacron Group	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	42 contacts →
	Partial evidence “Diacron Group provides accounting, tax and corporate services.” Source: RevenueBase Database · checked Sep 28, 2026
10	Integra International LTD	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	38 contacts →
	Indirect evidence “Integra International® is a global alliance of independent CPAs, CAs, Legal and Business Advisory firms that drive smart growth of their businesses by sharing knowledge and…” Source: RevenueBase Database · checked Sep 28, 2026
11	Asmat & CO	Indirect evidence	Slough, United KingdomHQ checked Sep 28, 2026	11-50	30 contacts →
	Indirect evidence “Asmat & Co are one of Berkshires leading independent firms of Accountants servicing a growing and satisfied clientele.” Source: RevenueBase Database · checked Sep 28, 2026
12	Hicks And Company, Chartered Accountants	Indirect evidence	Harpenden, United KingdomHQ checked Sep 28, 2026	11-50	23 contacts →
	Indirect evidence “Hicks and Company, Chartered Accountants Tax and Audit Specialists We are a local firm of accountants based in Harpenden, Hemel Hempstead and Hitchin” Source: RevenueBase Database · checked Sep 28, 2026
13	Knav UK	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	21 contacts →
	Partial evidence “KNAV is a dynamic global accounting and consulting firm, offering a comprehensive range of services including accounting, assurance, taxation, international transfer pricing…” Source: RevenueBase Database · checked Sep 28, 2026
14	Salhan Accountants	Indirect evidence	Edgbaston, United KingdomHQ checked Sep 28, 2026	11-50	21 contacts →
	Indirect evidence “At Salhan Accountants, we provide award-winning, high-quality advice and support to private and business clients throughout every stage of their financial lives.” Source: RevenueBase Database · checked Sep 28, 2026
15	Caribou	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	21 contacts →
	Indirect evidence “We set Transfer Pricing policies for global businesses.” Source: RevenueBase Database · checked Sep 28, 2026
16	Moracle Limited	Partial evidence	Luton, United KingdomHQ checked Sep 28, 2026	11-50	21 contacts →
	Partial evidence “A leading management and business support company providing accounting, auditing and services.” Source: RevenueBase Database · checked Sep 28, 2026
17	Kress Cooper Chartered Accountants	Indirect evidence	Richmond, United KingdomHQ checked Sep 28, 2026	11-50	20 contacts →
	Indirect evidence “Kress Cooper is a key regional player in Tax, Audit and Advisory services.” Source: RevenueBase Database · checked Sep 28, 2026
18	Beatons Group	Indirect evidence	Ipswich, United KingdomHQ checked Sep 28, 2026	11-50	19 contacts →
	Indirect evidence “A consistently progressive approach to client service keeps the Beatons Group at the forefront of local and national business.” Source: RevenueBase Database · checked Sep 28, 2026
19	James Milne Chartered Accountants	Indirect evidence	Aberdeen, United KingdomHQ checked Sep 28, 2026	11-50	18 contacts →
	Indirect evidence “We are an accountancy firm passionate about the future but proud of our past.” Source: RevenueBase Database · checked Sep 28, 2026
20	MHA Moore And Smalley	Indirect evidence	Preston, United KingdomHQ checked Sep 28, 2026	201-500	18 contacts →
	Indirect evidence “Why MHA Moore and Smalley?” Source: RevenueBase Database · checked Sep 28, 2026
21	Goldblatts	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	18 contacts →
	Partial evidence “The provision of accounting, auditing, taxation services and business advice to a number of clients ranging from individuals to small, medium and large groups of privately owned…” Source: RevenueBase Database · checked Sep 28, 2026
22	LCN Legal	Indirect evidence	Mayfair, United KingdomHQ checked Sep 28, 2026	1-10	17 contacts →
	Indirect evidence “We are specialists in managing the legal implementation of transfer pricing policies and group reorganizations.” Source: RevenueBase Database · checked Sep 28, 2026
23	Eacotts	Indirect evidence	Burnham, United KingdomHQ checked Sep 28, 2026	11-50	16 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 28, 2026
24	DAS TAX And Advisory Group US And UK	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	16 contacts →
	Indirect evidence “A thriving business is always seeking to grow.” Source: RevenueBase Database · checked Sep 28, 2026
25	Barrow LLP	Indirect evidence	Bishops Stortford, United KingdomHQ checked Sep 28, 2026	11-50	15 contacts →
	Indirect evidence “Accountants Registered Auditors Chartered Tax Advisers Business Advisers” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: intercompany accounting firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names intercompany accounting firms.
Partial evidence: Its own public description names part of intercompany accounting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name intercompany accounting firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 523 intercompany accounting firms based in the United Kingdom

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Intercompany accounting firms based in the United Kingdom at a glance

As of Sep 28, 2026

41.3%Verified-email coverage

5.7Average contacts per company

1-10Median size (employees)

20.7%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

370

11-50

118

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 523 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 intercompany 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 “intercompany 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 intercompany 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 intercompany 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, 1,222 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 28, 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.

Intercompany accounting firms by metro

Intercompany accounting firms in London108

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 intercompany 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 intercompany accounting firms are there based in the United Kingdom?

RevenueBase identified 523 intercompany 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?

Armstrong Watson, headquartered in Carlisle, tops this list with the largest team on record.

Which city has the most intercompany accounting firms?

London leads with 108 headquartered companies, followed by Manchester (12) and Birmingham (9).

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 1,222 verified decision-maker contacts tracked across these 523 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 28, 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.