Company lists · Data refreshed September 2026

Top 25 Accounting software integration developers based in the United Kingdom

RevenueBase identified 83 company matches for accounting software integration developers associated with the United Kingdom as of September 2026 and tracks 1,117 professional contacts across them, including 565 with verified work emails. London is the largest hub.

This list covers company matches for accounting software integration developers 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
83Companies
1,117Contacts tracked
565Verified emails
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The 25 largest accounting software integration developers based in the United Kingdom

Ranked by team size
Top 25 of 83 company matches for accounting software integration developers 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, 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 27, 2026 · View company records in RevenueBase
2Exact matchHoughton Le Spring, United KingdomHQ recorded Sep 27, 202651-200156 contacts →

Exact match

“Inflo transforms the accounting profession by making leading-edge technologies accessible to all.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact matchWokingham, United KingdomHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
4Exact 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
5Exact 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
6Exact matchNewcastle Upon Tyne, United KingdomHQ recorded Sep 27, 202611-5043 contacts →

Exact match

“ION implements cloud accounting solutions into Education, high-growth and PE-backed organisations.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact 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
8Exact 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
9Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-20035 contacts →

Exact match

“At Acting Office we deliver a fully integrated software platform designed for modern accountancy practices that want precision, efficiency and complete visibility across their…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchNewcastle Upon Tyne, United KingdomHQ recorded Sep 27, 202611-5025 contacts →

Exact match

“Zynk is one of leading Integration Platform as a Service providers specializing in accounting data integration.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchLeeds, United KingdomHQ recorded Sep 27, 202611-5018 contacts →

Exact match

“Cindercone provide integration software and services.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 27, 202611-5016 contacts →

Exact match

“Mayday mends month end for in-house finance teams at complex businesses scaling with Xero or Quickbooks Online as their core accounting system, including those managing multiple…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchStafford, United KingdomHQ recorded Sep 27, 202611-5015 contacts →

Exact match

“Grow your profits and make your business better with Outserve.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact 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
15Exact matchCrowborough, United KingdomHQ recorded Sep 27, 202611-5013 contacts →

Exact match

“Eclipse is an experienced provider of cloud financial management, integration and automation solutions designed to help organisations increase efficiency and maximise business…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchCroydon, United KingdomHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
17Exact matchSutton, United KingdomHQ recorded Sep 27, 202651-20011 contacts →

Exact match

“At Adaptris our mantra is Integration Anywhere.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchKettering, United KingdomHQ recorded Sep 27, 202611-5010 contacts →

Exact match

“Innovative software solutions; enhancing business performance At Redfish, our mission is to provide innovative software solutions that support a customer’s business objectives…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchBristol, United KingdomHQ recorded Sep 27, 202611-509 contacts →

Exact match

“Welcome to SoMax Finance – your trusted partner for cutting-edge cloud accounting solutions.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 27, 202611-507 contacts →

Exact match

“We are a small and nimble fintech company, with unique skills for extracting, understanding and transforming accounting data.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchPreston, United KingdomHQ recorded Sep 27, 202611-507 contacts →

Exact match

“Datafile is accounting software built for businesses that have outgrown off-the-shelf solutions.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchHorsham, United KingdomHQ recorded Sep 27, 202611-507 contacts →

Exact match

“Encore is an integrated stock control and accounting software designed for retail, manufacturing, wholesale and distribution companies in a multitude of industries.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchOxford, United KingdomHQ recorded Sep 27, 20261-106 contacts →

Exact match

“Protronics are Sage 50 and Sage 200 experts.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchOldham, United KingdomHQ recorded Sep 27, 202611-505 contacts →

Exact match

“How can we help?”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25Exact matchAltrincham, United KingdomHQ recorded Sep 27, 202611-505 contacts →

Exact match

“Your business is running on multiple software platforms.”

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

Showing 25 of 83 accounting software integration developers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 565 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Accounting software integration developers based in the United Kingdom at a glance

As of Sep 27, 2026
50.6%Verified-email coverage
13.5Average contacts per company
1-10Median size (employees)
25.3%Largest-city concentration · London
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
48
11-50
25
51-200
8
501-1,000
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 83 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 integration developers” 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 565 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 integration developers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many accounting software integration developers are there based in the United Kingdom?

RevenueBase identified 83 company matches for accounting software integration developers 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?

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

Which city has the most accounting software integration developers?

London leads with 21 company records, followed by Manchester (3) and Newcastle Upon Tyne (3).

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 565 professional contacts with verified work emails tracked across these 83 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.