Company lists · Data refreshed September 2026

Top 25 Outsourcing development companies based in the United Kingdom

Name: Outsourcing 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 1,202 companies tracked

RevenueBase identified 1,202 outsourcing development companies headquartered in the United Kingdom as of September 2026 and tracks 14,046 professional contacts across them, including 2,401 with verified work emails. London is the largest hub.

This list covers outsourcing 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

1,202Companies

14,046Contacts tracked

2,401Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest outsourcing development companies based in the United Kingdom

Ranked by team size

Top 25 of 1,202 outsourcing 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 outsourcing 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	Partial evidence	Bristol, United KingdomHQ checked Sep 21, 2026	501-1,000	988 contacts →
	Partial 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	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	501-1,000	515 contacts →
	Indirect 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	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	1,001-5,000	327 contacts →
	Partial 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	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
7	scrums.com	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	163 contacts →
	Indirect evidence “Scrums.com is the Software Engineering Orchestration Platform (SEOP).” Source: RevenueBase Database · checked Sep 21, 2026
8	RSK Business Solutions	Indirect evidence	Hildenborough, United KingdomHQ checked Sep 21, 2026	51-200	137 contacts →
	Indirect evidence “When it comes to software consultancy and resourcing companies, we’re proud to be very versatile.” Source: RevenueBase Database · checked Sep 21, 2026
9	Synycs Group	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	132 contacts →
	Partial 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
10	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
11	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
12	Xynotech	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	96 contacts →
	Partial 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
13	PDMS	Partial evidence	Braddan, United KingdomHQ checked Sep 21, 2026	51-200	92 contacts →
	Partial evidence “PDMS is a technology company providing software development and digital transformation services.” Source: RevenueBase Database · checked Sep 21, 2026
14	Webevis Technologies	Partial evidence	Bradford, United KingdomHQ checked Sep 21, 2026	51-200	83 contacts →
	Partial 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
15	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
16	Timspark	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	73 contacts →
	Partial 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
17	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
18	TX Dynamics	Partial evidence	Birmingham, United KingdomHQ checked Sep 21, 2026	51-200	72 contacts →
	Partial 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
19	Podtech	Partial evidence	Milton Keynes, United KingdomHQ checked Sep 21, 2026	51-200	69 contacts →
	Partial evidence “PODTECH is a software development company with a comprehensive suite of services.” Source: RevenueBase Database · checked Sep 21, 2026
20	Agile Cyber Solutions	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	69 contacts →
	Partial 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
21	Raznameh Group	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	68 contacts →
	Partial 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
22	I-Net Software Solutions	Indirect evidence	Hounslow, United KingdomHQ checked Sep 21, 2026	51-200	68 contacts →
	Indirect evidence “I-Net Solutions is a global technology partner with strategic hubs in London (UK), Europe, and the MEA region, supported by world-class delivery centres in India.” Source: RevenueBase Database · checked Sep 21, 2026
23	Intelex Systems Limited	Indirect evidence	Solihull, United KingdomHQ checked Sep 21, 2026	51-200	66 contacts →
	Indirect evidence “Intelex Systems is a leading technology consulting, IT services and Right sourcing solutions company, delivering technology driven business solutions that meet strategic…” Source: RevenueBase Database · checked Sep 21, 2026
24	Versatile Commerce	Partial evidence	Milton Keynes, United KingdomHQ checked Sep 21, 2026	51-200	64 contacts →
	Partial 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 21, 2026
25	3i-Vision	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	60 contacts →
	Partial 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 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: outsourcing 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 outsourcing development companies.
Partial evidence: Its own public description names part of outsourcing development companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name outsourcing 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 1,202 outsourcing development companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 2,401 reachable decision-makers.

Free signup · no credit card

View the full list →

Outsourcing development companies based in the United Kingdom at a glance

As of Sep 21, 2026

17.1%Verified-email coverage

11.7Average contacts per company

1-10Median size (employees)

41.3%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

680

11-50

357

51-200

120

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 1,202 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 outsourcing 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 “outsourcing 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 outsourcing 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 outsourcing 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, 2,401 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.

Outsourcing development companies by metro

Outsourcing development companies in London496
Outsourcing development companies in Birmingham26
Outsourcing development companies in Manchester26

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 outsourcing 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 outsourcing development companies are there based in the United Kingdom?

RevenueBase identified 1,202 outsourcing 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 outsourcing development companies?

London leads with 496 headquartered companies, followed by Birmingham (26) and Manchester (26).

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 2,401 verified decision-maker contacts tracked across these 1,202 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.

Ready to reach these companies? Verified emails and direct dials for all 1,202 outsourcing development companies based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Outsourcing development companies by geography

Browse the directory

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.