Company lists · Data refreshed September 2026

Top 25 Custom software development companies for small business based in the United Kingdom

Name: Custom software development companies for small business based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 2,745 companies tracked

RevenueBase identified 2,745 custom software development companies for small business headquartered in the United Kingdom as of September 2026 and tracks 20,371 professional contacts across them, including 3,498 with verified work emails and 1,068 with mobile numbers. London is the largest hub.

This list covers custom software development companies for small business 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 27, 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 27, 2026 86% judged on-target in blind review

2,745Companies

20,371Contacts tracked

3,498Verified emails

1,068Mobile numbers

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The 25 largest custom software development companies for small business based in the United Kingdom

Ranked by team size

Top 25 of 2,745 custom software development companies for small business based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to custom software development companies for small business: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Dotsquares	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	501-1,000	1,581 contacts →
	Indirect evidence “We leverage the latest web and mobile technologies to build, grow and support your business.” Source: RevenueBase Database · checked Sep 27, 2026
2	Apadmi	Indirect evidence	Salford Quays, United KingdomHQ checked Sep 27, 2026	201-500	314 contacts →
	Indirect evidence “Apadmi is a leading specialist mobile consultancy.” Source: RevenueBase Database · checked Sep 27, 2026
3	KRIFY	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	221 contacts →
	Partial evidence “Krify is a results-driven technology company specializing in crafting user-centric mobile apps, web applications, and software solutions.” Source: RevenueBase Database · checked Sep 27, 2026
4	Leighton	Strong evidence	Newcastle Upon Tyne, United KingdomHQ checked Sep 27, 2026	51-200	201 contacts →
	Strong evidence “Leighton is a software development business that builds high performing teams and develops successful software applications for its customers.” Source: RevenueBase Database · checked Sep 27, 2026
5	ONE Beyond	Partial evidence	Farnborough, United KingdomHQ checked Sep 27, 2026	201-500	185 contacts →
	Partial evidence “We build software solutions, partnering with ambitious clients looking to grow by harnessing next-generation technology.” Source: RevenueBase Database · checked Sep 27, 2026
6	scrums.com	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	163 contacts →
	Partial evidence “Scrums.com is the Software Engineering Orchestration Platform (SEOP).” Source: RevenueBase Database · checked Sep 27, 2026
7	Opinov8	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	154 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 27, 2026
8	IIH Global	Indirect evidence	Rickmansworth, United KingdomHQ checked Sep 27, 2026	51-200	149 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 27, 2026
9	Intagleo Systems	Indirect evidence	Slough, United KingdomHQ checked Sep 27, 2026	51-200	138 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 27, 2026
10	Synycs Group	Strong evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	132 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 27, 2026
11	BN Digital	Strong evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	87 contacts →
	Strong evidence “BN Digital is an enterprise software development agency specialising in custom web platform development, mobile app development, and AI/ML implementation We care deeply about…” Source: RevenueBase Database · checked Sep 27, 2026
12	Webevis Technologies	Strong evidence	Bradford, United KingdomHQ checked Sep 27, 2026	51-200	83 contacts →
	Strong evidence “Webevis is a software development company specializing in delivering incomparable web and mobile application development services to diverse clients across the globe.” Source: RevenueBase Database · checked Sep 27, 2026
13	TX Dynamics	Strong evidence	Birmingham, United KingdomHQ checked Sep 27, 2026	51-200	72 contacts →
	Strong evidence “TX Dynamics is a software development company, that helps businesses with product design, web and application development, and technology acceleration.” Source: RevenueBase Database · checked Sep 27, 2026
14	unipro.io	Strong evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	71 contacts →
	Strong evidence “Unipro is a bespoke software studio that creates custom solutions to solve the most complex digital transformation challenges, giving our clients unparalleled control and lasting…” Source: RevenueBase Database · checked Sep 27, 2026
15	Podtech	Strong evidence	Milton Keynes, United KingdomHQ checked Sep 27, 2026	51-200	69 contacts →
	Strong evidence “PODTECH is a software development company with a comprehensive suite of services.” Source: RevenueBase Database · checked Sep 27, 2026
16	Blueberry Consultants LTD	Strong evidence	Birmingham, United KingdomHQ checked Sep 27, 2026	51-200	65 contacts →
	Strong evidence “Blueberry Consultants is a private limited software development company, formed in 1997 by the current Managing Director, Martin Green.” Source: RevenueBase Database · checked Sep 27, 2026
17	Versatile Commerce	Strong evidence	Milton Keynes, United KingdomHQ checked Sep 27, 2026	51-200	64 contacts →
	Strong evidence “Versatile Commerce is an innovative bespoke software development company headquartered in the UK, with offices in the US and India.” Source: RevenueBase Database · checked Sep 27, 2026
18	Codex Software	Partial evidence	Cirencester, United KingdomHQ checked Sep 27, 2026	51-200	63 contacts →
	Partial evidence “Codex makes software simple, strategic, and reliable.” Source: RevenueBase Database · checked Sep 27, 2026
19	Ghyston	Partial evidence	Bristol, United KingdomHQ checked Sep 27, 2026	51-200	61 contacts →
	Partial evidence “Ghyston is an award-winning UK software company based in Bristol.” Source: RevenueBase Database · checked Sep 27, 2026
20	Appenza	Indirect evidence	Dartford, United KingdomHQ checked Sep 27, 2026	11-50	61 contacts →
	Indirect evidence “We aim at improvising our client businesses by developing innovative mobile & web applications and solutions that boost productivity, reduces operational costs, increases ROI and…” Source: RevenueBase Database · checked Sep 27, 2026
21	3i-Vision	Strong evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	60 contacts →
	Strong evidence “3i-Vision company was Founded in 2012, 3i-Vision is a provider of IT consulting services and custom software development with IT professionals.” Source: RevenueBase Database · checked Sep 27, 2026
22	GCD Technologies	Indirect evidence	Lurgan, United KingdomHQ checked Sep 27, 2026	51-200	59 contacts →
	Indirect evidence “The best businesses don't buy advantage.” Source: RevenueBase Database · checked Sep 27, 2026
23	Elite IT Team	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	11-50	59 contacts →
	Partial evidence “Most software is built for today’s headcount and today's problems.” Source: RevenueBase Database · checked Sep 27, 2026
24	Aircury	Strong evidence	London, United KingdomHQ checked Sep 27, 2026	11-50	55 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 27, 2026
25	Impressit	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	54 contacts →
	Indirect evidence “A premium digital agency with an in-house team of tech experts, who build SaaS products, mobile and web applications for SMEs by using clean processes and the latest technologies…” Source: RevenueBase Database · checked Sep 27, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: custom software development companies for small business. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names custom software development companies for small business.
Partial evidence: Its own public description names part of custom software development companies for small business, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name custom software development companies for small business. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 2,745 custom software development companies for small business based in the United Kingdom

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Custom software development companies for small business based in the United Kingdom at a glance

As of Sep 27, 2026

17.2%Verified-email coverage

5.2%Mobile-number coverage

7.4Average contacts per company

1-10Median size (employees)

35.2%Largest-city concentration · London

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

1,751

11-50

805

51-200

144

201-500

501-1,000

1,001-5,000

5,001-10,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 30.0d

1,9650–30

1,41531–60

8961–90

390–180

26180+

Company record updated

Median 92.0d

00–30

1,48831–60

8,16661–90

9,42890–180

1,289180+

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 custom software development companies for small business, 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 “custom software development companies for small business”. 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 custom software development companies for small business), 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 custom software development companies for small business, 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, 3,498 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 27, 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.

Custom software development companies for small business 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 custom software development companies for small business, 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 custom software development companies for small business are there based in the United Kingdom?

RevenueBase identified 2,745 custom software development companies for small business 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 custom software development companies for small business?

London leads with 965 headquartered companies, followed by Manchester (94) and Birmingham (57).

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 3,498 verified decision-maker contacts tracked across these 2,745 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 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 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.