Company lists · Data refreshed September 2026

Top 25 Accounting software engineering firms based in the United Kingdom

RevenueBase identified 255 company matches for accounting software engineering firms associated with the United Kingdom as of September 2026 and tracks 4,516 professional contacts across them, including 1,960 with verified work emails. London is the largest hub.

This list covers company matches for accounting software engineering 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 21, 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 21, 2026 How this list was built
255Companies
4,516Contacts tracked
1,960Verified emails
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The 25 largest accounting software engineering firms based in the United Kingdom

Ranked by team size
Top 25 of 255 company matches for accounting software engineering firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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 matchSlough, United KingdomHQ recorded Sep 21, 20261,001-5,0002,218 contacts →

Exact match

“IRIS Software Group is a leading business software and services provider, one of the UK’s largest privately held software companies.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 21, 2026501-1,000304 contacts →

Exact match

“Here at Aptitude, we provide software solutions to enable deliver fully autonomous finance so our customers can drive growth, efficiency and sustainability.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3Exact matchHove, United KingdomHQ recorded Sep 21, 202651-200118 contacts →

Exact match

“We provide accounting software, services & solutions that have a big impact on small UK businesses.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact matchWokingham, United KingdomHQ recorded Sep 21, 202651-200101 contacts →

Exact match

“The complete tax and accountancy practice software suite, powered by a single database.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 21, 202651-20087 contacts →

Exact match

“KPI is an all-in-one business solution providing: Accounting, Payroll, Sales, Human Resources, Project Management, Report and Document applications all in one platform according…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
7Exact matchEast Kilbride, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
8Exact matchDerby, United KingdomHQ recorded Sep 21, 202651-20061 contacts →

Exact match

“We help businesses do more than just balance the books.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchChipping Norton, United KingdomHQ recorded Sep 21, 202611-5053 contacts →

Exact match

“At Sci-Net Business Solutions (now part of the ANS Group) we are passionate and driven by the success of our customers.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchManchester, United KingdomHQ recorded Sep 21, 202651-20050 contacts →

Exact match

“Quill offers legal accounting, practice and document management software for the smart law firm.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchChester, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
12Exact matchKettering, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Sep 21, 202611-5034 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchBirmingham, United KingdomHQ recorded Sep 21, 202651-20028 contacts →

Exact match

“SolutionDots has a new approach to designing, building and using business managing software or ERP systems, our ERP software maximizes productivity across your entire organization.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchBellshill, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
16Exact matchBristol, United KingdomHQ recorded Sep 21, 202651-20017 contacts →

Exact match

“Welcome to bluQube - a better way to manage finance effectively.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact matchBirmingham, United KingdomHQ recorded Sep 21, 202611-5017 contacts →

Exact match

“Moneypex is a pioneering SAAS company at the forefront of transforming the way businesses manage their financial operations.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchSalford, United KingdomHQ recorded Sep 21, 20261-1016 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19Exact matchBasingstoke, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
20Exact matchChatham, United KingdomHQ recorded Sep 21, 20261-1014 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchMilton Keynes, United KingdomHQ recorded Sep 21, 202611-5014 contacts →

Exact match

“Alexander Rosse was founded in 2009 as one of the first “Xero only” practices in the UK.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchBirmingham, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
23Exact matchHull, United KingdomHQ recorded Sep 21, 202611-5012 contacts →

Exact match

“Small professional firm of accountants.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchCroydon, United KingdomHQ recorded Sep 21, 20261-1012 contacts →

Exact match

“MYT Software is the perfect solution for small businesses, freelancers, and accountants looking to streamline their finances and focus on growth.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchWorcester, United KingdomHQ recorded Sep 21, 202611-5011 contacts →

Exact match

“Is your business software letting you down?”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 255 accounting software engineering firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,960 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Accounting software engineering firms based in the United Kingdom at a glance

As of Sep 21, 2026
43.4%Verified-email coverage
17.7Average contacts per company
1-10Median size (employees)
20.4%Largest-city concentration · London
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
163
11-50
65
51-200
20
201-500
2
501-1,000
1
1,001-5,000
2
10001+
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 255 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 engineering 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 1,960 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 21, 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.

Accounting software engineering firms by metro

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 engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 255 company matches for accounting software engineering 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?

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

Which city has the most accounting software engineering firms?

London leads with 52 company records, followed by Manchester (9) and Bristol (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 1,960 professional contacts with verified work emails tracked across these 255 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 21, 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.