Company lists · Data refreshed September 2026

Top 25 Xero accounting firms based in the United Kingdom

RevenueBase identified 2,282 company matches for xero accounting firms associated with the United Kingdom as of September 2026 and tracks 8,226 professional contacts across them, including 2,837 with verified work emails and 420 with mobile numbers. London is the largest hub.

This list covers company matches for xero accounting firms associated with the 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 6, 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 6, 2026 How this list was built
2,282Companies
8,226Contacts tracked
2,837Verified emails
420Mobile numbers
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The 25 largest xero accounting firms based in the United Kingdom

Ranked by team size
Top 25 of 2,282 company matches for xero accounting firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 6, 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 matchHarrow, United KingdomHQ recorded Sep 6, 2026201-500477 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
2Exact matchWokingham, United KingdomHQ recorded Sep 6, 202651-200107 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
3Exact matchSt Albans, United KingdomHQ recorded Sep 6, 202651-20098 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
4Exact matchLeamington Spa, United KingdomHQ recorded Sep 6, 202651-20063 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
5Exact matchChiswick Park, United KingdomHQ recorded Sep 6, 202611-5063 contacts →

Exact match

“At Oasis Accountants we make sure to keep your business profitable.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
6Exact matchLeamington Spa, United KingdomHQ recorded Sep 6, 2026n/a54 contacts →

Exact match

“DSL is one of the UK's leading small business accountancy firms, helping businesses grow since 1997.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 6, 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 6, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 6, 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 6, 2026 · View company records in RevenueBase
9Exact matchChichester, United KingdomHQ recorded Sep 6, 202651-20050 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
10Exact matchMorden, United KingdomHQ recorded Sep 6, 202611-5045 contacts →

Exact match

“A team of Young qualified Accountants in London, serving clients nationwide.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
11Exact matchMotherwell, United KingdomHQ recorded Sep 6, 202611-5044 contacts →

Exact match

“WDM Chartered Accountants – More Than Just Numbers We Grow Our Business By Helping You Grow Yours WDM strives to give your business the competitive advantage it needs and demands.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
12Exact matchBrighton, United KingdomHQ recorded Sep 6, 202611-5042 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Sep 6, 202611-5042 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 6, 2026201-50040 contacts →

Exact match

“Accounting.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
15Exact matchBrentford, United KingdomHQ recorded Sep 6, 202611-5036 contacts →

Exact match

“Chartered Accountants & Business Advisors for small and medium-sized businesses, sole traders, freelancers, contractors, and startups.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 6, 202651-20035 contacts →

Exact match

“Accounting for Startups.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
17Exact matchKings Langley, United KingdomHQ recorded Sep 6, 202611-5033 contacts →

Exact match

“TeamSAS are building one of the UK’s leading digital accountancy firms to enable entrepreneurial businesses to grow.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Sep 6, 202611-5033 contacts →

Exact match

“Complete Accounting Solutions is a firm of dedicated individuals focussed on providing small and growing companies with support on the accounts and bookkeeping activities of their…”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
19Exact matchSwindon, United KingdomHQ recorded Sep 6, 202651-20032 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 6, 202611-5032 contacts →

Exact match

“Beany are accountants for ambitious businesses, delivering big firm expertise without the big cost.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
21Exact matchNottingham, United KingdomHQ recorded Sep 6, 202611-5031 contacts →

Exact match

“Botham Accounting are a forward thinking team of accountants that provide strategic accounting and tax advice to ambitious businesses.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
22Exact matchCirencester, United KingdomHQ recorded Sep 6, 20261-1030 contacts →

Exact match

“We found that there was often a breakdown in service between your bookkeeper and your accountant and that more often than not the accountant was spending a majority of their time…”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 6, 202651-20029 contacts →

Exact match

“Our clients rely on us to remove book-keeping hassle and improve their profitability by using our top quality financial reports based on professionally reconciled book-keeping.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
24Exact matchHarrow, United KingdomHQ recorded Sep 6, 202611-5023 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Sep 6, 202611-5022 contacts →

Exact match

“Simplified Online Accounting | Customized Bookkeeping | Expert Payroll Services Making Finances Easier: Welcome to AffoTax.com, where we're changing how small businesses handle…”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase

Showing 25 of 2,282 xero accounting firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 2,837 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Xero accounting firms based in the United Kingdom at a glance

As of Sep 6, 2026
34.5%Verified-email coverage
5.1%Mobile-number coverage
3.6Average contacts per company
1-10Median size (employees)
16.5%Largest-city concentration · London
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
1,888
11-50
336
51-200
25
201-500
6
501-1,000
1
1,001-5,000
1

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 the United Kingdom whose business descriptions match “xero 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 2,837 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 6, 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 “xero accounting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 2,282 company matches for xero accounting firms associated with the 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?

Outbooks tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most xero accounting firms?

London leads with 377 company records, followed by Manchester (48) and Bristol (37).

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 2,837 professional contacts with verified work emails tracked across these 2,282 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 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 2,282 xero accounting firms based in the United Kingdom. Start with a free account, no credit card.

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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.