Company lists · Data refreshed September 2026

Top 25 Platform outsourcing companies based in the United Kingdom

Name: Platform outsourcing 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 751 companies tracked

RevenueBase identified 751 platform outsourcing companies headquartered in the United Kingdom as of September 2026 and tracks 10,838 professional contacts across them, including 2,161 with verified work emails. London is the largest hub.

This list covers platform outsourcing 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

751Companies

10,838Contacts tracked

2,161Verified emails

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

The 25 largest platform outsourcing companies based in the United Kingdom

Ranked by team size

Top 25 of 751 platform outsourcing 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 platform outsourcing 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	Genisys Group	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	1,001-5,000	1,178 contacts →
	Indirect evidence “Genisys Group is a new age global information technology and business process services company.” Source: RevenueBase Database · checked Sep 21, 2026
2	NSC Global	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	1,001-5,000	1,039 contacts →
	Indirect evidence “Global business doesn’t have to be complicated.” Source: RevenueBase Database · checked Sep 21, 2026
3	Ubique Systems	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	501-1,000	333 contacts →
	Partial evidence “Ubique Systems is a fast growing multifaceted organization which offers a comprehensive array of outsourcing and consulting services for its customers, including recruitment…” 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	Sharp Brains	Indirect evidence	Slough, United KingdomHQ checked Sep 21, 2026	51-200	241 contacts →
	Indirect evidence “At Sharp Brains, we are your premier IT Services & Solutions Provider based in the UK, dedicated to meeting your business's unique needs with tailor-made solutions.” Source: RevenueBase Database · checked Sep 21, 2026
7	Vista Technology Support	Indirect evidence	Pentwyn, United KingdomHQ checked Sep 21, 2026	201-500	229 contacts →
	Indirect evidence “Vista is the UK market leader in delivering IT technology deployment and support services in retail, hospitality, healthcare and entertainment sectors.” Source: RevenueBase Database · checked Sep 21, 2026
8	Portal	Indirect evidence	Bracknell, United KingdomHQ checked Sep 21, 2026	51-200	141 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
9	Orchestra	Indirect evidence	Woolwich, United KingdomHQ checked Sep 21, 2026	n/a	129 contacts →
	Indirect evidence “Founded in 2007, we are independent, knowledgeable and reliable.” 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	Matsco Solutions	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	96 contacts →
	Indirect evidence “Matsco Solutions is a global managed IT service provider built exclusively for the financial services industry.” Source: RevenueBase Database · checked Sep 21, 2026
13	Bluesource	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	92 contacts →
	Indirect evidence “The costs for shifting to the cloud and juggling a hybrid environment continue to escalate due to rising support fees and expensive tech resources.” Source: RevenueBase Database · checked Sep 21, 2026
14	NEO Technology LTD	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	91 contacts →
	Indirect evidence “Organisations are looking at what they need to do to enable growth and efficiency, we show you the ROI and drive the reason to change.” 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	Empowered SMS	Indirect evidence	Dunstable, United KingdomHQ checked Sep 21, 2026	51-200	69 contacts →
	Indirect evidence “Empowered SMS – Services Made Simple Empowered is one of the UK’s leading independent IT services enablement providers, and the first place customers turn to solve business…” Source: RevenueBase Database · checked Sep 21, 2026
17	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
18	Qormotho	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	66 contacts →
	Partial evidence “QORMOTHO is a global outsourcing company.” Source: RevenueBase Database · checked Sep 21, 2026
19	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
20	Alternit ONE	Indirect evidence	Fenchurch Street, United KingdomHQ checked Sep 21, 2026	11-50	54 contacts →
	Indirect evidence “We are an outsourced IT Services Provider, who specialise in delivering high quality end user support, and the design build and run of IT Infrastructure to the Alternative…” Source: RevenueBase Database · checked Sep 21, 2026
21	GSC Technologies Limited	Indirect evidence	Dartford, United KingdomHQ checked Sep 21, 2026	201-500	53 contacts →
	Indirect evidence “At GSC Technologies, we are architects of digital transformation, empowering businesses with innovative IT solutions that drive growth and efficiency.” Source: RevenueBase Database · checked Sep 21, 2026
22	Devbox	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	52 contacts →
	Indirect evidence “Devbox Technologies is a UK based company that specializes in providing services related to the development, testing, maintenance, and enhancement of software applications for…” Source: RevenueBase Database · checked Sep 21, 2026
23	Insight International UK LTD	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	50 contacts →
	Indirect evidence “We provide Software Development, Maintenance and Other Related IT Services, across spectrum, depending on individual client’s needs and dependability on us.” Source: RevenueBase Database · checked Sep 21, 2026
24	Eclature Technologies	Indirect evidence	Daresbury, United KingdomHQ checked Sep 21, 2026	201-500	50 contacts →
	Indirect evidence “Eclature Technologies stands for engineering innovation, excellence, and reliability.” Source: RevenueBase Database · checked Sep 21, 2026
25	Uxli Limited	Indirect evidence	Suite 14-7, United KingdomHQ checked Sep 21, 2026	51-200	49 contacts →
	Indirect evidence “UXLI is a UK-based data and AI consultancy with over a decade of experience helping organisations unlock value from their data.” 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: platform outsourcing 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 platform outsourcing companies.
Partial evidence: Its own public description names part of platform outsourcing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name platform outsourcing 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 751 platform outsourcing 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 2,161 reachable decision-makers.

Free signup · no credit card

View the full list →

Platform outsourcing companies based in the United Kingdom at a glance

As of Sep 21, 2026

19.9%Verified-email coverage

14.4Average contacts per company

11-50Median size (employees)

43.5%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

329

11-50

266

51-200

106

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 751 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 platform outsourcing 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 “platform outsourcing 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 platform outsourcing 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 platform outsourcing 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, 2,161 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.

Platform outsourcing companies by metro

Platform outsourcing companies in London327

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

RevenueBase identified 751 platform outsourcing 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?

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

Which city has the most platform outsourcing companies?

London leads with 327 headquartered companies, followed by Birmingham (19) and Leeds (15).

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 2,161 verified decision-maker contacts tracked across these 751 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 751 platform outsourcing companies based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Platform outsourcing 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.