Company lists · Data refreshed September 2026

Top 25 Accounting software implementation companies based in the United Kingdom

RevenueBase identified 543 company matches for accounting software implementation companies associated with the United Kingdom as of September 2026 and tracks 2,910 professional contacts across them, including 833 with verified work emails. London is the largest hub.

This list covers company matches for accounting software implementation companies 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 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
543Companies
2,910Contacts tracked
833Verified emails
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The 25 largest accounting software implementation companies based in the United Kingdom

Ranked by team size
Top 25 of 543 company matches for accounting software implementation companies based in the 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, 202651-20074 contacts →

Exact match

“Running a business is hard enough without disconnected systems and slow processes getting in the way.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2Exact matchEast Kilbride, United KingdomHQ recorded Sep 27, 202651-20064 contacts →

Exact match

“At Eureka Solutions, we specialise in implementing powerful cloud-based systems that have the potential to revolutionise your business.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact 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
4Exact matchChester, United KingdomHQ recorded Sep 27, 202611-5044 contacts →

Exact match

“Big enough for best-in-class support but small enough for your undivided attention, itas invests in your long-term success.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchSlough, United KingdomHQ recorded Sep 27, 20261,001-5,00042 contacts →

Exact match

“IRIS is a long-established industry leader in accounting software and services for accountants and bookkeepers.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchKettering, United KingdomHQ recorded Sep 27, 202651-20041 contacts →

Exact match

“Pegasus Software is one of the UK's leading suppliers of accounting software, cloud accounting software, business solutions and payroll software and has been for over 30 years.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact matchAndoversford, United KingdomHQ recorded Sep 27, 202651-20037 contacts →

Exact match

“Here at Cedar Bay we have years of experience implementing large scale ERP solutions.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchSunderland, United KingdomHQ recorded Sep 27, 202611-5034 contacts →

Exact match

“Clear Business Outcome Ltd - The Epicor People We help manufacturing, engineering and distribution businesses streamline their processes and increase efficiency through…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 27, 202611-5034 contacts →

Exact match

“Codis are a successful and well established business software developer.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchCirencester, United KingdomHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
11Exact matchBristol, United KingdomHQ recorded Sep 27, 202611-5023 contacts →

Exact match

“G7 is a trusted and experienced expert in the implementation and support of business systems.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchBellshill, United KingdomHQ recorded Sep 27, 202651-20023 contacts →

Exact match

“Founded in 1982, Castle Computer Services provides accounting and financial management software, business intelligence solutions, cloud and managed IT services throughout the UK…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Sep 27, 202611-5022 contacts →

Exact match

“A leading Sage X3 and Sage Intacct Business Partner.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchLeeds, United KingdomHQ recorded Sep 27, 202611-5020 contacts →

Exact match

“Leeds cloud accountants that care.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchBirmingham, United KingdomHQ recorded Sep 27, 202611-5018 contacts →

Exact match

“Optimum PPS is an independent ERP & digital transformation consultancy.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchUnited KingdomHQ recorded Sep 27, 202611-5017 contacts →

Exact match

“Inixion is a specialist Sage partner delivering 100% project success since 2006.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Sep 27, 202611-5016 contacts →

Exact match

“Supporting professional services firms with their requirements across setup, adoption, data migration, training, managed services and integrations.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-20016 contacts →

Exact match

“Capvyuh is a global Microsoft Partner and business solutions company helping organisations modernise operations, improve efficiency, and accelerate growth through intelligent…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchLeicestershire, United KingdomHQ recorded Sep 27, 202611-5015 contacts →

Exact match

“At HIT Technology, we offer expert business management consultancy and are trusted resellers of industry leading software solutions which, together, enable you to integrate all…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchBasingstoke, United KingdomHQ recorded Sep 27, 202611-5015 contacts →

Exact match

“With over 30 years’ experience under our belt in helping our valued clients to work smarter, we find business solutions to your problems.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchCrawley, United KingdomHQ recorded Sep 27, 202651-20015 contacts →

Exact match

“The Financial Management Centre is a leading financial management consultancy that is committed to helping organisations achieve performance excellence.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-20014 contacts →

Exact match

“7FC LLP - Digital Business ERP Transformation Consultants and software house.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchChatham, United KingdomHQ recorded Sep 27, 20261-1014 contacts →

Exact match

“At Accurox, we measure our success by yours.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Sep 27, 202611-5013 contacts →

Exact match

“AccounTax Zone is a complete accounting and business solution that helps you keep track of your business finances, lend a hand in annual accounts, and other financial matters…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25Exact matchBirmingham, United KingdomHQ recorded Sep 27, 202611-5013 contacts →

Exact match

“We're proud to say, we're the #1 Sage Support Provider in the UK and boast a 5/5-star Trustpilot Rating.”

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

Showing 25 of 543 accounting software implementation companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 833 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Accounting software implementation companies based in the United Kingdom at a glance

As of Sep 27, 2026
28.6%Verified-email coverage
5.4Average contacts per company
1-10Median size (employees)
25.2%Largest-city concentration · London
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
420
11-50
101
51-200
18
201-500
1
1,001-5,000
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 543 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 the United Kingdom whose business descriptions match “accounting software implementation companies” 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 833 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 “accounting software implementation companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many accounting software implementation companies are there based in the United Kingdom?

RevenueBase identified 543 company matches for accounting software implementation companies 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?

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

Which city has the most accounting software implementation companies?

London leads with 137 company records, followed by Manchester (10) and Sheffield (8).

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 833 professional contacts with verified work emails tracked across these 543 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.