Company lists · Data refreshed September 2026

Top 25 Ecommerce accounting firms based in the United Kingdom

RevenueBase identified 3,760 ecommerce accounting firms headquartered in the United Kingdom as of September 2026 and tracks 16,360 professional contacts across them, including 5,234 with verified work emails and 801 with mobile numbers. London is the largest hub.

This list covers ecommerce 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 1, 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 RevenueBase Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review
3,760Companies
16,360Contacts tracked
5,234Verified emails
801Mobile numbers
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The 25 largest ecommerce accounting firms based in the United Kingdom

Ranked by team size
Top 25 of 3,760 ecommerce accounting firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to ecommerce 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
1Partial evidenceLondon, United Kingdom201-500475 contacts →

Partial evidence

“Outbooks is a leading provider of outsourcing services to accounting and bookkeeping firms.”

Source: RevenueBase Database · checked Sep 1, 2026
2Partial evidenceBrighton, United Kingdom201-500186 contacts →

Partial evidence

“Galloways is the fastest growing accounting services firm in Sussex.”

Source: RevenueBase Database · checked Sep 1, 2026
3Indirect evidenceCanterbury, United Kingdom51-200139 contacts →

Indirect evidence

“Burgess Hodgson are a Kent based accountancy firm with the skills and expertise to rival any other accountancy firm in the UK.”

Source: RevenueBase Database · checked Sep 1, 2026
4Partial evidenceWinnersh Triangle, United Kingdom51-200104 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 1, 2026
5Partial evidenceLondon, United Kingdom51-200103 contacts →

Partial evidence

“Online Accounting Service | Bookkeeping | Payroll | Personal Tax Return Filing to HMRC | Corporation Tax Filing | HMRC ONLINE FILING: Our aim is to help small business owners` tax…”

Source: RevenueBase Database · checked Sep 1, 2026
6Indirect evidenceHemel Hempstead, United Kingdom501-1,000102 contacts →

Indirect evidence

“SJD is now Caroola Accountancy!”

Source: RevenueBase Database · checked Sep 1, 2026
7Indirect evidenceSt Albans, United Kingdom51-20097 contacts →

Indirect evidence

“At Rayner Essex, we believe your accountant should do a lot more than just report on how your business is doing - he or she should help you identify opportunities to improve your…”

Source: RevenueBase Database · checked Sep 1, 2026
8Indirect evidenceStratford Upon Avon, United Kingdom51-20064 contacts →

Indirect evidence

“Accountants you can trust – whatever the challenge – you’ll find we’re a safe pair of hands.”

Source: RevenueBase Database · checked Sep 1, 2026
9Partial evidenceWembley, United Kingdom201-50064 contacts →

Partial evidence

“Affinity Associates Limited is a leading accounting firm based in Wembley, London, UK, and is regulated and authorised for public practice by both the ICAEW (Institute of…”

Source: RevenueBase Database · checked Sep 1, 2026
10Partial evidenceWirral, United Kingdom51-20063 contacts →

Partial evidence

“We offer online accounting services which simplify tax and finances for small businesses, by providing a fresh alternative to old-school high street accountants.”

Source: RevenueBase Database · checked Sep 1, 2026
11Indirect evidenceHarrow, United Kingdom51-20060 contacts →

Indirect evidence

“Since 1962 RDP Newmans have been providing businesses with accountancy and taxation services, which are tailored to help our clients achieve their financial goals.”

Source: RevenueBase Database · checked Sep 1, 2026
12Indirect evidenceLondon, United Kingdom51-20053 contacts →

Indirect evidence

“Est.”

Source: RevenueBase Database · checked Sep 1, 2026
13Indirect evidenceMidhurst, United Kingdom51-20050 contacts →

Indirect evidence

“At Lewis Brownlee, we're not just your average accountancy firm – we're the driving force behind your financial success.”

Source: RevenueBase Database · checked Sep 1, 2026
14Indirect evidenceLondon, United Kingdom51-20049 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 1, 2026
15Indirect evidenceEdinburgh, United Kingdom51-20047 contacts →

Indirect evidence

“TC Alexander Sloan, Accountants and Business Advisers, can trace its roots to 1867 and since then we have been offering a personalised accountancy service to individuals…”

Source: RevenueBase Database · checked Sep 1, 2026
16Partial evidenceLondon, United Kingdom201-50039 contacts →

Partial evidence

Accounting.”

Source: RevenueBase Database · checked Sep 1, 2026
17Indirect evidenceDundee, United Kingdom51-20038 contacts →

Indirect evidence

“MMG believes there is no one-size-fits-all when providing an accountancy solution.”

Source: RevenueBase Database · checked Sep 1, 2026
18Partial evidenceLondon, United Kingdom51-20036 contacts →

Partial evidence

“TBA Global (also known as TB Accountants) is your trusted partner for accounting and tax solutions!”

Source: RevenueBase Database · checked Sep 1, 2026
19Partial evidenceLondon, United Kingdom51-20034 contacts →

Partial evidence

Accounting for Startups.”

Source: RevenueBase Database · checked Sep 1, 2026
20Indirect evidenceCirencester, United Kingdom51-20031 contacts →

Indirect evidence

“Morris Owen - chartered accountants, business advisers and tax advisers.”

Source: RevenueBase Database · checked Sep 1, 2026
21Partial evidenceManchester, United Kingdom51-20027 contacts →

Partial evidence

“Finex Accounting is an outsourcing accountancy service provider.”

Source: RevenueBase Database · checked Sep 1, 2026
22Indirect evidenceBerwick Upon Tweed, United Kingdom51-20025 contacts →

Indirect evidence

“We prepare accounts for all types of business, from sole traders to partnerships and limited companies.”

Source: RevenueBase Database · checked Sep 1, 2026
23Indirect evidenceLondon, United Kingdom51-20019 contacts →

Indirect evidence

“We provide experienced and specialist staff committed to the success of each client's business, always focusing on our working principle of adding value to a client's business…”

Source: RevenueBase Database · checked Sep 1, 2026
24Partial evidenceKempsford, United Kingdom51-20016 contacts →

Partial evidence

“Holbi Group provides Ecommerce design, development and consultancy services to online retailers, manufacturers, businesses, and individuals who rely on technology and gear their…”

Source: RevenueBase Database · checked Sep 1, 2026
25Indirect evidenceBridgwater, United Kingdom51-20014 contacts →

Indirect evidence

“We work much more closely with our clients than traditional accountants and are selective in the clients that we act for.”

Source: RevenueBase Database · checked Sep 1, 2026

Showing 25 of 3,760 ecommerce accounting firms based in the United Kingdom

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Ecommerce accounting firms based in the United Kingdom at a glance

As of Sep 1, 2026
32.0%Verified-email coverage
4.9%Mobile-number coverage
4.4Average contacts per company
1-10Median size (employees)
18.4%Largest-city concentration · London
Sep 1, 2026Page data refreshed

Companies by employee count

1-10
2,869
11-50
644
51-200
68
201-500
12
501-1,000
3
1,001-5,000
3

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 ecommerce 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 “ecommerce 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 ecommerce 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 ecommerce 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, 5,234 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 1, 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.

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

RevenueBase identified 3,760 ecommerce 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?

Outbooks, headquartered in London, tops this list with the largest team on record.

Which city has the most ecommerce accounting firms?

London leads with 690 headquartered companies, followed by Manchester (82) and Birmingham (55).

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 5,234 verified decision-maker contacts tracked across these 3,760 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 1, 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.