Company lists · Data refreshed November 2026

Top 25 Application maintenance outsourcers based in the United Kingdom

RevenueBase identified 216 company matches for application maintenance outsourcers associated with the United Kingdom as of November 2026 and tracks 2,979 professional contacts across them, including 948 with verified work emails. London is the largest hub.

This list covers company matches for application maintenance outsourcers associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
216Companies
2,979Contacts tracked
948Verified emails
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The 25 largest application maintenance outsourcers based in the United Kingdom

Ranked by team size
Top 25 of 216 company matches for application maintenance outsourcers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchDerby, United KingdomHQ recorded Nov 6, 2026201-500253 contacts →

Exact match

“Solid Systems Global is a worldwide provider of multi-vendor enterprise equipment services that cover the complete lifecycle of install base technology support.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchPentwyn, United KingdomHQ recorded Nov 6, 2026201-500234 contacts →

Exact match

“Vista is the UK market leader in delivering IT technology deployment and support services in retail, hospitality, healthcare and entertainment sectors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchWoolwich, United KingdomHQ recorded Nov 6, 2026n/a141 contacts →

Exact match

“Founded in 2007, we are independent, knowledgeable and reliable.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchLeeds, United KingdomHQ recorded Nov 6, 202651-20047 contacts →

Exact match

“Support Warehouse is one of the world’s largest re-sellers of vendors’ technical IT support services with around customers across twelve different countries and over 20 years’…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchPlymouth, United KingdomHQ recorded Nov 6, 202611-5040 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchFleet, United KingdomHQ recorded Nov 6, 202611-5035 contacts →

Exact match

“When IT feels hard work, frustrating, or unreliable, it slows everything down.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchCheadle, United KingdomHQ recorded Nov 6, 202611-5033 contacts →

Exact match

“We help businesses run at optimal efficiency via reliable, proactive & responsive IT support & managed services Whether your business is a fledgling start-up or an established…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchChesterfield, United KingdomHQ recorded Nov 6, 202651-20030 contacts →

Exact match

“Merlin ERP from Aptean is a specialist ERP solution purpose-built for wholesale distribution.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchColchester, United KingdomHQ recorded Nov 6, 202611-5028 contacts →

Exact match

“At Rio IT, we offer a wide range of IT Support and Software Development services to cover all eventualities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchLeeds, United KingdomHQ recorded Nov 6, 202611-5026 contacts →

Exact match

“Rabb-IT is a team of IT outsourcing experts based in Leeds, West Yorkshire.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSalford Priors, United KingdomHQ recorded Nov 6, 20261-1021 contacts →

Exact match

“Based in Worcs/Warks borders, and having 12 years experience with a global supplier working with different manufacturers, resulting in the establishment of Gas 'N' Go as an…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“Network Integrators, We are well-versed in a variety of operating systems, networks, and databases.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“Who we are, what we do Priority One IT is a specialist IT provider to SMEs in London, we understand the importance of reliable IT systems for our clients.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchChesterfield, United KingdomHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“Based in the UK but operating in over 40 countries worldwide, Cynetix provide a variety of IT services to companies ranging in size from small offices to multinationals.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchCroydon, United KingdomHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“Broadgate Infonet is a bespoke software support provider that builds its business on close working relationships with its clients that spans over decades.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“Giotech - Elevating Your IT Experience.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchDundonald, United KingdomHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Innovec is an IT support company proudly founded in 2009 with offices in Ayrshire and Glasgow.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchRomsey, United KingdomHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“At HBC we provide simple, effective IT support and solutions for organisations primarily within Southern England.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchNeedham Market, United KingdomHQ recorded Nov 6, 20261-1013 contacts →

Exact match

“AnyIT is your go-to Business IT support company, proudly serving from the heart of Suffolk (Needham Market).”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-20013 contacts →

Exact match

“We provide award winning telephone, remote and scheduled onsite IT Support Services & IT Solutions to organisations with between 10-300 staff members.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchBedford, United KingdomHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Baby Blue is a UK-based IT services and consultancy business specialising in enterprise infrastructure.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchFarnborough, United KingdomHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“Based in the South East, Blucando offer a variety of services across the UK to a growing number of small & medium businesses who trust us as their honest & open IT Partner.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchRochdale, United KingdomHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“Myson Pages install, manage and monitor computer systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchSalford, United KingdomHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“Working IT Solutions specialise in the support of IT systems for businesses.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchHitchin, United KingdomHQ recorded Nov 6, 20261-1011 contacts →

Exact match

“The Outsourced IT Department for Small and Medium Businesses EMH Technology is an IT services company based in Hitchin, Hertfordshire.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 216 application maintenance outsourcers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 948 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Application maintenance outsourcers based in the United Kingdom at a glance

As of Nov 6, 2026
31.8%Verified-email coverage
13.8Average contacts per company
1-10Median size (employees)
24.1%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
130
11-50
60
51-200
14
201-500
8
501-1,000
1

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 216 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United Kingdom whose business descriptions match “application maintenance outsourcers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 948 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Application maintenance outsourcers by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “application maintenance outsourcers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many application maintenance outsourcers are there based in the United Kingdom?

RevenueBase identified 216 company matches for application maintenance outsourcers associated with the United Kingdom as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Solid Systems Global tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most application maintenance outsourcers?

London leads with 52 company records, followed by Manchester (11) and Bristol (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 948 professional contacts with verified work emails tracked across these 216 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 216 application maintenance outsourcers based in the United Kingdom. Start with a free account, no credit card.

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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 SmartSearch, 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.