Company lists · Data refreshed September 2026

Top 25 SaaS application development companies based in the United Kingdom

Name: SaaS application development companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 1,887 companies tracked

RevenueBase identified 1,887 SaaS application development companies headquartered in the United Kingdom as of September 2026 and tracks 14,800 professional contacts across them, including 2,453 with verified work emails and 576 with mobile numbers. London is the largest hub.

This list covers SaaS application development companies 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, how directly it supports the match, 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 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 HQ checked on every row Match evidence on every row Refreshed Sep 6, 2026 86% judged on-target in blind review

1,887Companies

14,800Contacts tracked

2,453Verified emails

576Mobile numbers

Explore all 1,887 companies → Free signup · no credit card · 500 free credits

The 25 largest SaaS application development companies based in the United Kingdom

Ranked by team size

Top 25 of 1,887 SaaS application development companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 6, 2026. Evidence rates how directly each company's own description names SaaS application development companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	DotsquaresIndirect evidence	London, United KingdomHQ checked Sep 6, 2026	501-1,000	1,581
	“We leverage the latest web and mobile technologies to build, grow and support your business.” Source: company website · checked Sep 6, 2026
2	Dreams Technologies, UK & IndiaIndirect evidence	London, United KingdomHQ checked Sep 6, 2026	201-500	221
	“At Dreams Technologies, we’re more than software engineers, we’re digital transformation partners.” Source: company website · checked Sep 6, 2026
3	KRIFYPartial evidence	London, United KingdomHQ checked Sep 6, 2026	51-200	221
	“Krify is a results-driven technology company specializing in crafting user-centric mobile apps, web applications, and software solutions.” Source: company website · checked Sep 6, 2026
4	LeightonStrong evidence	Newcastle Upon Tyne, United KingdomHQ checked Sep 6, 2026	51-200	201
	“Leighton is a software development business that builds high performing teams and develops successful software applications for its customers.” Source: company website · checked Sep 6, 2026
5	ONE BeyondIndirect evidence	Farnborough, United KingdomHQ checked Sep 6, 2026	201-500	185
	“We build software solutions, partnering with ambitious clients looking to grow by harnessing next-generation technology.” Source: company website · checked Sep 6, 2026
6	SoftbrandsIndirect evidence	Farnborough, United KingdomHQ checked Sep 6, 2026	501-1,000	177
	“In 2009 SoftBrands was bought by Infor and is now a part of the Infor Hospitality Suite.” Source: company website · checked Sep 6, 2026
7	scrums.comIndirect evidence	London, United KingdomHQ checked Sep 6, 2026	201-500	163
	“Scrums.com is the Software Engineering Orchestration Platform (SEOP).” Source: company website · checked Sep 6, 2026
8	Opinov8Indirect evidence	London, United KingdomHQ checked Sep 6, 2026	201-500	154
	“Winner of the Best AI Company Award by The Netty Awards · Headquartered in London, powered by a worldwide team of engineers across Europe, Egypt, and the Americas.” Source: company website · checked Sep 6, 2026
9	IIH GlobalIndirect evidence	Rickmansworth, United KingdomHQ checked Sep 6, 2026	51-200	149
	“IIH Global is a global technology solutions company helping startups, SMEs, and enterprises in the UK, US, Europe, Australia, and Canada build the digital tools they need to run…” Source: company website · checked Sep 6, 2026
10	Intagleo SystemsIndirect evidence	Slough, United KingdomHQ checked Sep 6, 2026	51-200	138
	“For over 22 years, Intagleo has been a trusted partner for businesses worldwide and US Primes, empowering them to achieve their digital transformation goals through innovative…” Source: company website · checked Sep 6, 2026
11	Synycs GroupPartial evidence	London, United KingdomHQ checked Sep 6, 2026	201-500	132
	“Incorporated in 2014 and headquartered in the UK, Synycs Group is a CMMI Level 4 industry-leading & most reliable software and mobile app development company known for delivering…” Source: company website · checked Sep 6, 2026
12	Conovo TechnologiesIndirect evidence	Slough, United KingdomHQ checked Sep 6, 2026	51-200	84
	“Conovo Technologies builds AI automation, agents and custom software for startups and SMEs.” Source: company website · checked Sep 6, 2026
13	TimsparkPartial evidence	London, United KingdomHQ checked Sep 6, 2026	51-200	73
	“Timspark is a software development company/hub that creates custom software solutions to fit clients’ business needs.” Source: company website · checked Sep 6, 2026
14	TX DynamicsStrong evidence	Birmingham, United KingdomHQ checked Sep 6, 2026	51-200	72
	“TX Dynamics is a software development company, that helps businesses with product design, web and application development, and technology acceleration.” Source: company website · checked Sep 6, 2026
15	PodtechPartial evidence	Milton Keynes, United KingdomHQ checked Sep 6, 2026	51-200	69
	“PODTECH is a software development company with a comprehensive suite of services.” Source: company website · checked Sep 6, 2026
16	Blueberry Consultants LTDPartial evidence	Birmingham, United KingdomHQ checked Sep 6, 2026	51-200	65
	“Blueberry Consultants is a private limited software development company, formed in 1997 by the current Managing Director, Martin Green.” Source: company website · checked Sep 6, 2026
17	Versatile CommercePartial evidence	Milton Keynes, United KingdomHQ checked Sep 6, 2026	51-200	64
	“Versatile Commerce is an innovative bespoke software development company headquartered in the UK, with offices in the US and India.” Source: company website · checked Sep 6, 2026
18	Codex SoftwareIndirect evidence	Cirencester, United KingdomHQ checked Sep 6, 2026	51-200	63
	“Codex makes software simple, strategic, and reliable.” Source: company website · checked Sep 6, 2026
19	GhystonIndirect evidence	Bristol, United KingdomHQ checked Sep 6, 2026	51-200	61
	“Ghyston is an award-winning UK software company based in Bristol.” Source: company website · checked Sep 6, 2026
20	AircuryStrong evidence	London, United KingdomHQ checked Sep 6, 2026	11-50	55
	“Aircury offers high quality software development for the education and non-profit sectors We specialise in- Full-stack application development for web and mobile- API and…” Source: company website · checked Sep 6, 2026
21	Satva SoftechIndirect evidence	London, United KingdomHQ checked Sep 6, 2026	51-200	53
	“Established in 2015, SATVA Softech has carved a distinguished niche in the global technology landscape.” Source: company website · checked Sep 6, 2026
22	WarrgyizmorschPartial evidence	London, United KingdomHQ checked Sep 6, 2026	51-200	51
	“Tailored ERP, CRM & SaaS that automates your operations and fuels measurable growth.” Source: company website · checked Sep 6, 2026
23	Insight International UK LTDPartial evidence	London, United KingdomHQ checked Sep 6, 2026	51-200	50
	“We provide Software Development, Maintenance and Other Related IT Services, across spectrum, depending on individual client’s needs and dependability on us.” Source: company website · checked Sep 6, 2026
24	Avco SystemsPartial evidence	Slough, United KingdomHQ checked Sep 6, 2026	51-200	46
	“Formed in 1986, Avco Systems Ltd has over 40 years of experience in the Software Development sector and provides a range of quality products and services to clients throughout the…” Source: company website · checked Sep 6, 2026
25	Theodo UKIndirect evidence	London, United KingdomHQ checked Sep 6, 2026	51-200	46
	“Theodo was founded 14 years ago and comprises 700 employees across offices in London, Paris, New York, Casablanca and Cape Town.” Source: company website · checked Sep 6, 2026

Showing 25 of 1,887 SaaS application development companies based in the United Kingdom

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SaaS application development companies based in the United Kingdom at a glance

As of Sep 6, 2026

1-10Median size (employees)

LondonLargest hub · 680 HQs

576Contacts with mobile numbers

Sep 6, 2026Data refreshed

Companies by employee count

1-10

1,195

11-50

556

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Verified emails by last verification

0–30

2,274

31–60

158

61–90

90–180

180+

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 application development companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 application development companies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among SaaS application development companies, 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 an evidence 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, 2,453 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 application development companies by metro

SaaS application development companies in London680
SaaS application development companies in Manchester67
SaaS application development companies in Birmingham32
SaaS application development companies in Bristol30
SaaS application development companies in Leeds28
SaaS application development companies in Glasgow26

Frequently asked

How many SaaS application development companies are there based in the United Kingdom?

RevenueBase identified 1,887 SaaS application development companies 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?

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

Which city has the most SaaS application development companies?

London leads with 680 headquartered companies, followed by Manchester (67) and Birmingham (32).

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 2,453 verified decision-maker contacts tracked across these 1,887 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 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.