Company lists · Data refreshed September 2026

Top 25 IT operations outsourcing companies based in the United Kingdom

Name: IT operations 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 28, 2026 452 companies tracked

RevenueBase identified 452 IT operations outsourcing companies headquartered in the United Kingdom as of September 2026 and tracks 9,107 professional contacts across them, including 2,134 with verified work emails. London is the largest hub.

This list covers IT operations 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 28, 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 28, 2026 86% judged on-target in blind review

452Companies

9,107Contacts tracked

2,134Verified emails

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

The 25 largest IT operations outsourcing companies based in the United Kingdom

Ranked by team size

Top 25 of 452 IT operations outsourcing companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to IT operations 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 28, 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 28, 2026
2	NSC Global	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	1,039 contacts →
	Indirect evidence “Global business doesn’t have to be complicated.” Source: RevenueBase Database · checked Sep 28, 2026
3	Convergys Intelligent Contact	Indirect evidence	Altrincham, United KingdomHQ checked Sep 28, 2026	10001+	873 contacts →
	Indirect evidence “At Convergys Intelligent Contact, we build sustainable revenue streams for our clients.” Source: RevenueBase Database · checked Sep 28, 2026
4	Excis Compliance	Partial evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
5	Vertex Data Science	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	569 contacts →
	Partial evidence “Vertex is a leader in BPO and Customer Management Outsourcing, serving over 200 clients worldwide across many sectors.” Source: RevenueBase Database · checked Sep 28, 2026
6	Sharp Brains	Partial evidence	Slough, United KingdomHQ checked Sep 28, 2026	51-200	241 contacts →
	Partial 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 28, 2026
7	Vista Technology Support	Partial evidence	Pentwyn, United KingdomHQ checked Sep 28, 2026	201-500	229 contacts →
	Partial 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 28, 2026
8	Deepscale Technologies LTD	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	141 contacts →
	Partial evidence “Deepscale Technologies provide data center, enterprise & managed IT solutions across the globe that enhance how businesses operate.” Source: RevenueBase Database · checked Sep 28, 2026
9	Orchestra	Indirect evidence	Woolwich, United KingdomHQ checked Sep 28, 2026	n/a	129 contacts →
	Indirect evidence “Founded in 2007, we are independent, knowledgeable and reliable.” Source: RevenueBase Database · checked Sep 28, 2026
10	Solvex Solutions	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	103 contacts →
	Partial evidence “we redefine business process outsourcing, empowering companies to broaden their horizons.” Source: RevenueBase Database · checked Sep 28, 2026
11	Bluesource	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
12	Adex International	Strong evidence	Folkestone, United KingdomHQ checked Sep 28, 2026	51-200	91 contacts →
	Strong evidence “Adex International is an ISO Certified company (ISO/IEC 27001:2013) specializing in IT Outsourcing, Cloud Consultation & Modernization.” Source: RevenueBase Database · checked Sep 28, 2026
13	SOLVD	Indirect evidence	Glasgow, United KingdomHQ checked Sep 28, 2026	51-200	74 contacts →
	Indirect evidence “Streamline your business with our bespoke support services.” Source: RevenueBase Database · checked Sep 28, 2026
14	Medhurst	Partial evidence	Fareham, United KingdomHQ checked Sep 28, 2026	51-200	51 contacts →
	Partial evidence “Since 1986, the Medhurst name has been synonymous with making IT work for corporate businesses and the public sector, delivering cost effective and flexible IT solutions and…” Source: RevenueBase Database · checked Sep 28, 2026
15	Direct Response	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	46 contacts →
	Strong evidence “Direct Response can provide outsourcing of voice, data and contact centre services for organisation from a global business to a one-man operation, delivering outstanding service…” Source: RevenueBase Database · checked Sep 28, 2026
16	Equity	Partial evidence	Maidenhead, United KingdomHQ checked Sep 28, 2026	51-200	43 contacts →
	Partial evidence “Choosing the right IT products or services can often feel like navigating an assault course, one where you end up with multiple solutions from multiple providers.” Source: RevenueBase Database · checked Sep 28, 2026
17	Holker IT	Partial evidence	Burnley, United KingdomHQ checked Sep 28, 2026	11-50	39 contacts →
	Partial evidence “At Holker IT our aim is to improve our clients’ businesses through strategic advice, implementation and on-going support of IT systems and processes, from single to multi-server…” Source: RevenueBase Database · checked Sep 28, 2026
18	Convene IT LTD	Partial evidence	Chorley, United KingdomHQ checked Sep 28, 2026	11-50	38 contacts →
	Partial evidence “Convene IT Ltd With over 15 years of experience in IT support services We we offer high quality business IT service, combining expertise and great customer service but without the…” Source: RevenueBase Database · checked Sep 28, 2026
19	Techno Networks	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	38 contacts →
	Partial evidence “We are focused on providing on-demand and well-managed IT support services around the globe and around the clock.” Source: RevenueBase Database · checked Sep 28, 2026
20	Acronyms	Partial evidence	Plymouth, United KingdomHQ checked Sep 28, 2026	11-50	35 contacts →
	Partial evidence “Acronyms is an IT support company offering a range of IT services, designed to save organisations time that they can spend on growing their own businesses.” Source: RevenueBase Database · checked Sep 28, 2026
21	Cheeky Munkey LTD	Partial evidence	St. Albans, United KingdomHQ checked Sep 28, 2026	11-50	34 contacts →
	Partial evidence “Cheeky Munkey is a privately owned and managed IT support company based in St Albans, Hertfordshire, providing professional IT support within London and the South East.” Source: RevenueBase Database · checked Sep 28, 2026
22	Impact IT Solutions UK LTD	Partial evidence	Whitchurch, United KingdomHQ checked Sep 28, 2026	11-50	34 contacts →
	Partial evidence “Bristol's leading IT Support Provider, offering tailored IT solutions to meet your needs.” Source: RevenueBase Database · checked Sep 28, 2026
23	Systemrapid	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	33 contacts →
	Indirect evidence “SystemRapid - inner feelings.outsourced.” Source: RevenueBase Database · checked Sep 28, 2026
24	B-612 Remote Hands & Eyes Support	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	33 contacts →
	Indirect evidence “Trusted Partner of Your Network Infrastructure Managing network infrastructure in Data-Centres on behalf of a wide range of colocation users since 2009, B-612 offers a…” Source: RevenueBase Database · checked Sep 28, 2026
25	Go-To Outsourcing	Partial evidence	Bromsgrove, United KingdomHQ checked Sep 28, 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 28, 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: IT operations 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 IT operations outsourcing companies.
Partial evidence: Its own public description names part of IT operations outsourcing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT operations 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 452 IT operations 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 2,134 reachable decision-makers.

Free signup · no credit card

View the full list →

IT operations outsourcing companies based in the United Kingdom at a glance

As of Sep 28, 2026

23.4%Verified-email coverage

20.1Average contacts per company

11-50Median size (employees)

35.0%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

188

11-50

181

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 452 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 IT operations 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 “IT operations 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 IT operations 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 IT operations 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, 2,134 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 28, 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.

IT operations outsourcing companies by metro

IT operations outsourcing companies in London158

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 IT operations 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 IT operations outsourcing companies are there based in the United Kingdom?

RevenueBase identified 452 IT operations 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 IT operations outsourcing companies?

London leads with 158 headquartered companies, followed by Bristol (7) and Leeds (7).

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 2,134 verified decision-maker contacts tracked across these 452 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 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 452 IT operations outsourcing companies based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

IT operations 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.