Company lists · Data refreshed September 2026

Top 25 Application support outsourcing firms based in the United Kingdom

Name: Application support outsourcing firms 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 526 companies tracked

RevenueBase identified 526 application support outsourcing firms headquartered in the United Kingdom as of September 2026 and tracks 7,145 professional contacts across them, including 1,499 with verified work emails. London is the largest hub.

This list covers application support outsourcing firms 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

526Companies

7,145Contacts tracked

1,499Verified emails

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

The 25 largest application support outsourcing firms based in the United Kingdom

Ranked by team size

Top 25 of 526 application support outsourcing firms 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 application support outsourcing firms: 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	Excis Compliance	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	1,001-5,000	616 contacts →
	Partial evidence “Excis is a trusted global IT services company, delivering agile, multilingual support across 150+ countries.” Source: RevenueBase Database · checked Sep 27, 2026
2	ESP Global Services	Partial evidence	Reading, United KingdomHQ checked Sep 27, 2026	501-1,000	510 contacts →
	Partial evidence “ESP provides IT support services across the globe.” Source: RevenueBase Database · checked Sep 27, 2026
3	Ubique Systems	Partial evidence	London, United KingdomHQ checked Sep 27, 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 27, 2026
4	Damco Solutions Limited	Partial evidence	London, United KingdomHQ checked Sep 27, 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 27, 2026
5	Orchestra	Indirect evidence	Woolwich, United KingdomHQ checked Sep 27, 2026	n/a	129 contacts →
	Indirect evidence “Founded in 2007, we are independent, knowledgeable and reliable.” Source: RevenueBase Database · checked Sep 27, 2026
6	Solvex Solutions	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	103 contacts →
	Partial evidence “we redefine business process outsourcing, empowering companies to broaden their horizons.” Source: RevenueBase Database · checked Sep 27, 2026
7	Matsco Solutions	Indirect evidence	London, United KingdomHQ checked Sep 27, 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 27, 2026
8	Bluesource	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	92 contacts →
	Partial 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 27, 2026
9	Youpro Contact	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	90 contacts →
	Partial evidence “A world class offshore outsourcing agency, with offices in London and Harare, we have access to some of the best educated, best spoken graduates you will find anywhere in the…” Source: RevenueBase Database · checked Sep 27, 2026
10	Xanadutec	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	70 contacts →
	Partial evidence “We are a 400 member strong, specialist business process outsourcing (BPO) provider that caters to the diverse and complex information processing needs of todays corporation.” Source: RevenueBase Database · checked Sep 27, 2026
11	Support Revolution	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	67 contacts →
	Partial evidence “Support Revolution provides 3rd party Oracle and SAP Software Support & Maintenance and help to save customers up to 90% on what they currently pay.” Source: RevenueBase Database · checked Sep 27, 2026
12	Qormotho	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	66 contacts →
	Partial evidence “QORMOTHO is a global outsourcing company.” Source: RevenueBase Database · checked Sep 27, 2026
13	Support Adventure	Strong evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	62 contacts →
	Strong evidence “Support Adventure is an outsourcing company that specializes in customer service and support.” Source: RevenueBase Database · checked Sep 27, 2026
14	Everett SKY	Indirect evidence	Essex, United KingdomHQ checked Sep 27, 2026	51-200	61 contacts →
	Indirect evidence “Based in Europe, Everett Sky specializes in helping businesses scale their teams for growth through transformative solutions and exceptional customer service.” Source: RevenueBase Database · checked Sep 27, 2026
15	SKO Systems	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	45 contacts →
	Indirect evidence “At SKO Systems, we engineer enterprise-grade software ecosystems designed for the unique, high-stakes realities of the maritime environment.” Source: RevenueBase Database · checked Sep 27, 2026
16	Thinq24	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	11-50	42 contacts →
	Indirect evidence “Software Development Company that encourages thinking beyond limits, turning our customers' ideas into reality.” Source: RevenueBase Database · checked Sep 27, 2026
17	A-Listware	Indirect evidence	St Leonards-on-sea, United KingdomHQ checked Sep 27, 2026	51-200	40 contacts →
	Indirect evidence “A-listware is a UK technology company with R&D center in Ukraine delivering exclusive on-boarding and accompanying of your remote engineering teams.” Source: RevenueBase Database · checked Sep 27, 2026
18	Mifort	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	39 contacts →
	Partial evidence “We are a software development outsourcing company with 9+ years in business and 200+ successful projects.” Source: RevenueBase Database · checked Sep 27, 2026
19	PC Consultants	Partial evidence	Ryde, United KingdomHQ checked Sep 27, 2026	11-50	37 contacts →
	Partial evidence “PC Consultants - Isle of Wight based IT Consultancy and Technology Company - IT Sales Support & Service - Support Contracts and Repair Workshop - Microsoft Partner and Small…” Source: RevenueBase Database · checked Sep 27, 2026
20	Sensible Group International	Indirect evidence	Manchester, United KingdomHQ checked Sep 27, 2026	201-500	36 contacts →
	Indirect evidence “BPO & Technology Solutions \| Contact Center Optimization \| Scalable Operations As a leader at Sensible Group, I specialize in delivering high-performance BPO solutions tailored…” Source: RevenueBase Database · checked Sep 27, 2026
21	auxilium.digital	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	11-50	35 contacts →
	Indirect evidence “Auxilium Digital helps businesses with limited resources, higher operational costs achieve utmost customer satisfaction through providing customized offshore development teams…” Source: RevenueBase Database · checked Sep 27, 2026
22	Systemrapid	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	11-50	33 contacts →
	Indirect evidence “SystemRapid - inner feelings.outsourced.” Source: RevenueBase Database · checked Sep 27, 2026
23	Offshore Team	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	33 contacts →
	Indirect evidence “Offshore Team is a British-owned technology company based in the Philippines.” Source: RevenueBase Database · checked Sep 27, 2026
24	Fiverivers IT Solutions	Partial evidence	Newcastle, United KingdomHQ checked Sep 27, 2026	51-200	33 contacts →
	Partial evidence “We’ve been in the biz for 20 years, and in that time we’ve gained quite the reputation for providing top class consultancy and outsourcing solutions in web design and development…” Source: RevenueBase Database · checked Sep 27, 2026
25	Go-To Outsourcing	Partial evidence	Bromsgrove, United KingdomHQ checked Sep 27, 2026	11-50	32 contacts →
	Partial evidence “Almost every business can save time and money with smart outsourcing from Go-To - how much depends on you.” 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: application support outsourcing firms. 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 application support outsourcing firms.
Partial evidence: Its own public description names part of application support outsourcing firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name application support outsourcing firms. 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 526 application support outsourcing firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,499 reachable decision-makers.

Free signup · no credit card

View the full list →

Application support outsourcing firms based in the United Kingdom at a glance

As of Sep 27, 2026

21.0%Verified-email coverage

13.6Average contacts per company

11-50Median size (employees)

39.0%Largest-city concentration · London

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

252

11-50

167

51-200

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 526 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 application support outsourcing firms, 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 “application support outsourcing firms”. 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 application support outsourcing firms), 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 application support outsourcing firms, 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, 1,499 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.

Application support outsourcing firms by metro

Application support outsourcing firms in London205

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 application support outsourcing firms, 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 application support outsourcing firms are there based in the United Kingdom?

RevenueBase identified 526 application support outsourcing firms 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?

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

Which city has the most application support outsourcing firms?

London leads with 205 headquartered companies, followed by Manchester (15) and Birmingham (10).

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 1,499 verified decision-maker contacts tracked across these 526 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.

Ready to reach these companies? Verified emails and direct dials for all 526 application support outsourcing firms based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Application support outsourcing firms 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.