Company lists · Data refreshed September 2026

Top 25 Outsource software development companies based in the United Kingdom

Name: Outsource software 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 21, 2026 1,468 companies tracked

RevenueBase identified 1,468 outsource software development companies headquartered in the United Kingdom as of September 2026 and tracks 16,160 professional contacts across them, including 2,781 with verified work emails. London is the largest hub.

This list covers outsource software 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 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 21, 2026 86% judged on-target in blind review

1,468Companies

16,160Contacts tracked

2,781Verified emails

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The 25 largest outsource software development companies based in the United Kingdom

Ranked by team size

Top 25 of 1,468 outsource software development companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to outsource software development companies: 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 21, 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 21, 2026
2	Amdaris	Strong evidence	Bristol, United KingdomHQ checked Sep 21, 2026	501-1,000	988 contacts →
	Strong evidence “Amdaris, an Insight Company delivers innovative Software Development, Product Design, Digital Transformation, Application Support and Consultancy Services from our UK headquarters…” Source: RevenueBase Database · checked Sep 21, 2026
3	SENLA	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	501-1,000	515 contacts →
	Partial evidence “In 2012, SENLA set out with a vision: to transform people's lives with exceptional software.” Source: RevenueBase Database · checked Sep 21, 2026
4	Damco Solutions Limited	Strong evidence	London, United KingdomHQ checked Sep 21, 2026	1,001-5,000	327 contacts →
	Strong evidence “Damco Solutions Limited is a specialist software solutions and services & a business process outsourcing services company.” Source: RevenueBase Database · checked Sep 21, 2026
5	Parser	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	242 contacts →
	Indirect evidence “At Parser we help organisations deliver impact through technology.” Source: RevenueBase Database · checked Sep 21, 2026
6	KRIFY	Partial evidence	London, United KingdomHQ checked Sep 21, 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 21, 2026
7	NCUBE	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	180 contacts →
	Indirect evidence “In a globalized world, code is currency, and great developers are the gold standard.” Source: RevenueBase Database · checked Sep 21, 2026
8	scrums.com	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	163 contacts →
	Partial evidence “Scrums.com is the Software Engineering Orchestration Platform (SEOP).” Source: RevenueBase Database · checked Sep 21, 2026
9	Opinov8	Indirect evidence	London, United KingdomHQ checked Sep 21, 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 21, 2026
10	Intagleo Systems	Indirect evidence	Slough, United KingdomHQ checked Sep 21, 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 21, 2026
11	RSK Business Solutions	Partial evidence	Hildenborough, United KingdomHQ checked Sep 21, 2026	51-200	137 contacts →
	Partial evidence “When it comes to software consultancy and resourcing companies, we’re proud to be very versatile.” Source: RevenueBase Database · checked Sep 21, 2026
12	Synycs Group	Strong evidence	London, United KingdomHQ checked Sep 21, 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 21, 2026
13	Axiom Software Solutions Limited	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	114 contacts →
	Partial evidence “Axiom is a global information technology, consulting and outsourcing company and services provider.” Source: RevenueBase Database · checked Sep 21, 2026
14	Synverse Tech Limited	Indirect evidence	Maidenhead, United KingdomHQ checked Sep 21, 2026	51-200	113 contacts →
	Indirect evidence “SYNVERSE is a fast growing “Next Generation” global IT solution services provider with headquarters in UK Having Global Delivery Center at Hyderabad INDIA.” Source: RevenueBase Database · checked Sep 21, 2026
15	Xynotech	Strong evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	96 contacts →
	Strong evidence “Xynotech is a provider of IT consulting and software development services that help companies overtake their competition.” Source: RevenueBase Database · checked Sep 21, 2026
16	PDMS	Strong evidence	Braddan, United KingdomHQ checked Sep 21, 2026	51-200	92 contacts →
	Strong evidence “PDMS is a technology company providing software development and digital transformation services.” Source: RevenueBase Database · checked Sep 21, 2026
17	Webevis Technologies	Strong evidence	Bradford, United KingdomHQ checked Sep 21, 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 21, 2026
18	BIT Wave Solutions Limited	Indirect evidence	Reading, United KingdomHQ checked Sep 21, 2026	11-50	75 contacts →
	Indirect evidence “Headquartered at Reading, Berkshire in United Kingdom, Bit Wave Solutions enables global businesses to build their future by directing clients’ innovation & customization agenda.” Source: RevenueBase Database · checked Sep 21, 2026
19	Timspark	Strong evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	73 contacts →
	Strong evidence “Timspark is a software development company/hub that creates custom software solutions to fit clients’ business needs.” Source: RevenueBase Database · checked Sep 21, 2026
20	On The Spot Development	Indirect evidence	Harrogate, United KingdomHQ checked Sep 21, 2026	51-200	72 contacts →
	Indirect evidence “At On The Spot, we help tech companies hire engineers and build offshore R&D teams in Poland and Georgia./ 30+ R&D teams built / 400+ roles filled / 8 M & As across customer…” Source: RevenueBase Database · checked Sep 21, 2026
21	TX Dynamics	Strong evidence	Birmingham, United KingdomHQ checked Sep 21, 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 21, 2026
22	Podtech	Strong evidence	Milton Keynes, United KingdomHQ checked Sep 21, 2026	51-200	69 contacts →
	Strong evidence “PODTECH is a software development company with a comprehensive suite of services.” Source: RevenueBase Database · checked Sep 21, 2026
23	Agile Cyber Solutions	Strong evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	69 contacts →
	Strong evidence “Agile Cyber Solutions is a company providing software services which prides itself as an understanding IT partner for various product development companies, large portals…” Source: RevenueBase Database · checked Sep 21, 2026
24	Supportwave	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	68 contacts →
	Indirect evidence “Supportwave is an AI-driven enterprise technology services company.” Source: RevenueBase Database · checked Sep 21, 2026
25	Raznameh Group	Strong evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	68 contacts →
	Strong evidence “We are a software development company based in the United Kingdom with some Europe, Asia, and eastern Europe offices.” Source: RevenueBase Database · checked Sep 21, 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: outsource software development companies. 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 outsource software development companies.
Partial evidence: Its own public description names part of outsource software development companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name outsource software development companies. 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 1,468 outsource software development companies based in the United Kingdom

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Outsource software development companies based in the United Kingdom at a glance

As of Sep 21, 2026

17.2%Verified-email coverage

11.0Average contacts per company

1-10Median size (employees)

40.8%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

816

11-50

470

51-200

131

201-500

501-1,000

1,001-5,000

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 1,468 companies.

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 outsource software development companies, 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 “outsource software development companies”. 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 outsource software development companies), 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 outsource software 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 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, 2,781 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 21, 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.

Outsource software development companies by metro

Outsource software development companies in London599
Outsource software development companies in Birmingham35
Outsource software development companies in Manchester35

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 outsource software development companies, 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 outsource software development companies are there based in the United Kingdom?

RevenueBase identified 1,468 outsource software 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 outsource software development companies?

London leads with 599 headquartered companies, followed by Birmingham (35) and Manchester (35).

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 2,781 verified decision-maker contacts tracked across these 1,468 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 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 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.