Company lists · Data refreshed September 2026

Top 25 SaaS software developers based in the United Kingdom

RevenueBase identified 75 SaaS software developers headquartered in the United Kingdom as of September 2026 and tracks 452 professional contacts across them, including 109 with verified work emails and 31 with mobile numbers. London is the largest hub.

This list covers SaaS software developers 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 6, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 6, 2026 86% judged on-target in blind review
75Companies
452Contacts tracked
109Verified emails
31Mobile numbers
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The 25 largest SaaS software developers based in the United Kingdom

Ranked by team size
Top 25 of 75 SaaS software developers based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to SaaS software developers: 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
1Indirect evidenceLondon, United KingdomHQ checked Sep 6, 202651-20085 contacts →

Indirect evidence

“Hornbill is an innovator of cloud-based business collaboration technology and applications that engage teams, optimise operations and deliver better customer experiences.”

Source: RevenueBase Database · checked Sep 6, 2026
2Indirect evidenceLondon, United KingdomHQ checked Sep 6, 202611-5022 contacts →

Indirect evidence

“iTouchVision is one of the world's leading cloud-based service providers with innovation & excellence at its base.”

Source: RevenueBase Database · checked Sep 6, 2026
3Strong evidenceSydney, United KingdomHQ checked Sep 6, 202611-5021 contacts →

Strong evidence

“Kinde is a fully-integrated developer platform, providing SaaS and AI app infrastructure to thousands of businesses globally.”

Source: RevenueBase Database · checked Sep 6, 2026
4Partial evidenceManchester, United KingdomHQ checked Sep 6, 20261-1017 contacts →

Partial evidence

“Awesome SaaS tools to supercharge your business.”

Source: RevenueBase Database · checked Sep 6, 2026
5Partial evidenceLondon, United KingdomHQ checked Sep 6, 20261-1013 contacts →

Partial evidence

“JPY Ltd is a London-based company specialising in software development and distribution - Cloud services; file-sharing and data backup; digital asset management.”

Source: RevenueBase Database · checked Sep 6, 2026
6Partial evidenceGlasgow, United KingdomHQ checked Sep 6, 202611-5012 contacts →

Partial evidence

“We build amazing SaaS products, both for our clients and ourselves.”

Source: RevenueBase Database · checked Sep 6, 2026
7Partial evidenceLondon, United KingdomHQ checked Sep 6, 202611-509 contacts →

Partial evidence

“Octasys is a dynamic software company that specializes in creating innovative products to meet the ever-changing needs of businesses and consumers.”

Source: RevenueBase Database · checked Sep 6, 2026
8Partial evidenceEdinburgh, United KingdomHQ checked Sep 6, 20261-107 contacts →

Partial evidence

“Cloud-based software solutions and services that work with your business.”

Source: RevenueBase Database · checked Sep 6, 2026
9Partial evidenceLondon, United KingdomHQ checked Sep 6, 202611-506 contacts →

Partial evidence

“Infini is an app development company, delivering bespoke SaaS solutions to SME's and enterprise clients.”

Source: RevenueBase Database · checked Sep 6, 2026
10Partial evidenceLondon, United KingdomHQ checked Sep 6, 202611-505 contacts →

Partial evidence

“At the start of the century Online50 invented the idea of clients and accountants being able to work on their financial software at the same time using the Internet - before we…”

Source: RevenueBase Database · checked Sep 6, 2026
11Strong evidenceCarlisle, United KingdomHQ checked Sep 6, 20261-104 contacts →

Strong evidence

“We develop and provide software for growing organisations, sold as a service or developed in partnership with you rather than as one large upfront cost.”

Source: RevenueBase Database · checked Sep 6, 2026
12Partial evidenceBurnely, United KingdomHQ checked Sep 6, 20261-104 contacts →

Partial evidence

“We have spent many years building insightful and easy to use business software and mobile apps for small to medium-size businesses.”

Source: RevenueBase Database · checked Sep 6, 2026
13Indirect evidenceStratford Upon Avon, United KingdomHQ checked Sep 6, 202611-504 contacts →

Indirect evidence

“Application Craft aims to demystify the art of application development.”

Source: RevenueBase Database · checked Sep 6, 2026
14Strong evidenceOxford, United KingdomHQ checked Sep 6, 20261-103 contacts →

Strong evidence

“We’re a team of dedicated developers and engineers in Oxford building SaaS platforms that are used by some of the world’s largest companies.”

Source: RevenueBase Database · checked Sep 6, 2026
15Partial evidenceNewcastle Upon Tyne, United KingdomHQ checked Sep 6, 20261-103 contacts →

Partial evidence

“Cloud Data Service Ltd is an award-winning software development company based in the heart of Newcastle upon Tyne.”

Source: RevenueBase Database · checked Sep 6, 2026
16Indirect evidenceTontes, United KingdomHQ checked Sep 6, 20261-102 contacts →

Indirect evidence

“Fika Studio is a passionate development studio that makes tools for business.”

Source: RevenueBase Database · checked Sep 6, 2026
17Indirect evidenceGloucester, United KingdomHQ checked Sep 6, 20261-102 contacts →

Indirect evidence

“Over half a million users rely on our apps everyday to improve their technical skills, adopt new technologies, resolve support issues, meet compliance objectives and manage…”

Source: RevenueBase Database · checked Sep 6, 2026
18Partial evidenceFarnham, United KingdomHQ checked Sep 6, 20261-101 contacts →

Partial evidence

“Bespoke Software Development Crockwell Solutions is a UK based innovative software development business, specialising in building bespoke, business applications that harness the…”

Source: RevenueBase Database · checked Sep 6, 2026
19Partial evidenceRushden, United KingdomHQ checked Sep 6, 20261-101 contacts →

Partial evidence

“Software as a Service provider.”

Source: RevenueBase Database · checked Sep 6, 2026
20Indirect evidenceGlasgow, United KingdomHQ checked Sep 6, 20261-101 contacts →

Indirect evidence

“Tekfor Cloud Services offers a comprehensive range of cloud solutions to empower your business.”

Source: RevenueBase Database · checked Sep 6, 2026
21Indirect evidenceHarpenden, United KingdomHQ checked Sep 6, 20261-101 contacts →

Indirect evidence

“Do you worry about losing valuable data and what it might do to your business?”

Source: RevenueBase Database · checked Sep 6, 2026
22Partial evidenceLondon, United KingdomHQ checked Sep 6, 20261-101 contacts →

Partial evidence

“Building powerful, scalable SaaS & Web Apps At Synmek, we partner with startups, small businesses, and B2B teams to design and develop custom digital products that scale.”

Source: RevenueBase Database · checked Sep 6, 2026
23Indirect evidenceLondon, United KingdomHQ checked Sep 6, 20261-101 contacts →

Indirect evidence

“We redefine the way that small businesses utilize IT & Cloud technologies.”

Source: RevenueBase Database · checked Sep 6, 2026
24Indirect evidenceLondon, United KingdomHQ checked Sep 6, 20261-101 contacts →

Indirect evidence

“Chirambattu is motivated by the belief that great experiences build great businesses.”

Source: RevenueBase Database · checked Sep 6, 2026
25Partial evidenceLondon, United KingdomHQ checked Sep 6, 20261-101 contacts →

Partial evidence

“Expino Limited is a company founded in 2017 which focuses on cloud based products mainly in SaaS model.”

Source: RevenueBase Database · checked Sep 6, 2026

Showing 25 of 75 SaaS software developers based in the United Kingdom

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SaaS software developers based in the United Kingdom at a glance

As of Sep 6, 2026
24.1%Verified-email coverage
6.9%Mobile-number coverage
6.0Average contacts per company
1-10Median size (employees)
42.7%Largest-city concentration · London
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
54
11-50
16
51-200
4
10001+
1

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 SaaS software developers, 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 “SaaS software developers”. 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 SaaS software developers), 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 SaaS software developers, 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, 109 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 6, 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.

SaaS software developers by metro

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 SaaS software developers, 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 SaaS software developers are there based in the United Kingdom?

RevenueBase identified 75 SaaS software developers 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?

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

Which city has the most SaaS software developers?

London leads with 32 headquartered companies, followed by Manchester (3) and Bristol (2).

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 109 verified decision-maker contacts tracked across these 75 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 6, 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.