Company lists · Data refreshed November 2026

Top 16 Application support outsourcing firms based in the United Kingdom

RevenueBase identified 771 company matches for application support outsourcing firms associated with the United Kingdom as of November 2026 and tracks 12,083 professional contacts across them, including 2,759 with verified work emails. London is the largest hub.

This list covers company matches for application support outsourcing firms 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 5, 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 5, 2026 How this list was built
771Companies
12,083Contacts tracked
2,759Verified emails
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The 16 largest application support outsourcing firms based in the United Kingdom

Ranked by team size
Top 16 of 771 company matches for application support outsourcing firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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 matchLondon, United KingdomHQ recorded Nov 5, 20261,001-5,0001,091 contacts →

Exact match

“Global business doesn’t have to be complicated.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchReading, United KingdomHQ recorded Nov 5, 2026501-1,000557 contacts →

Exact match

“ESP provides IT support services across the globe.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Nov 5, 20261,001-5,000344 contacts →

Exact match

“Damco Solutions Limited is a specialist software solutions and services & a business process outsourcing services company.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchSlough, United KingdomHQ recorded Nov 5, 202651-200248 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchWoolwich, United KingdomHQ recorded Nov 5, 2026n/a141 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Nov 5, 2026201-500105 contacts →

Exact match

“we redefine business process outsourcing, empowering companies to broaden their horizons.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchColombo, United KingdomHQ recorded Nov 5, 202651-20086 contacts →

Exact match

“Tellida (Pvt) Ltd is a global outsourcing company providing Legal Process Outsourcing (LPO), Finance & Accounting Outsourcing (FAO), Contact Centre services, and Remote Business…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchEssex, United KingdomHQ recorded Nov 5, 202651-20070 contacts →

Exact match

“Based in Europe, Everett Sky specializes in helping businesses scale their teams for growth through transformative solutions and exceptional customer service.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Nov 5, 202651-20064 contacts →

Exact match

“Field Techs Services LTD is a best one IT support providing company in EMEA, APAC and LATUM.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchFenchurch Street, United KingdomHQ recorded Nov 5, 202611-5060 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchRipon, United KingdomHQ recorded Nov 5, 2026n/a46 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchMilton Keynes, United KingdomHQ recorded Nov 5, 202651-20045 contacts →

Exact match

“Managed247 is a UK managed IT services provider for mid-market and enterprise organisations.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Nov 5, 202651-20043 contacts →

Exact match

“We are a software development outsourcing company with 9+ years in business and 200+ successful projects.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchSt Leonards-on-sea, United KingdomHQ recorded Nov 5, 202651-20041 contacts →

Exact match

“A-listware is a UK technology company with R&D center in Ukraine delivering exclusive on-boarding and accompanying of your remote engineering teams.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchReading, United KingdomHQ recorded Nov 5, 202651-20036 contacts →

Exact match

“Our Mission Here at Omnia we believe we can assist our clients with much more than technical support.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Nov 5, 202611-5036 contacts →

Exact match

“SystemRapid - inner feelings.outsourced.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 16 of 771 application support outsourcing firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 2,759 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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

As of Nov 5, 2026
22.8%Verified-email coverage
15.7Average contacts per company
11-50Median size (employees)
38.0%Largest-city concentration · London
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
361
11-50
249
51-200
99
201-500
26
501-1,000
10
1,001-5,000
4
5,001-10,000
2
10001+
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 771 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 support outsourcing firms” 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 2,759 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 5, 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 support outsourcing firms 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 support outsourcing firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 771 company matches for application support outsourcing firms 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?

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

Which city has the most application support outsourcing firms?

London leads with 293 company records, followed by Manchester (23) and Leeds (9).

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 2,759 professional contacts with verified work emails tracked across these 771 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 5, 2026.

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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.