Company lists · Data refreshed November 2026

Top 23 Systems integration services based in the United Kingdom

RevenueBase identified 640 company matches for systems integration services associated with the United Kingdom as of November 2026 and tracks 18,220 professional contacts across them, including 8,549 with verified work emails. London is the largest hub.

This list covers company matches for systems integration services 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
640Companies
18,220Contacts tracked
8,549Verified emails
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The 23 largest systems integration services based in the United Kingdom

Ranked by team size
Top 23 of 640 company matches for systems integration services 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 matchExeter, United KingdomHQ recorded Nov 5, 2026501-1,000389 contacts →

Exact match

“Trinity’s mission statement is simple - to provide high quality design, installation, commissioning and long term after care of Fire Detection, Fire Suppression, Life Safety and…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchBradford, United KingdomHQ recorded Nov 5, 2026501-1,000352 contacts →

Exact match

“Kings Secure Technologies (KST) is a high-end, enterprise-level systems integrator.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchSheffield, United KingdomHQ recorded Nov 5, 2026201-500262 contacts →

Exact match

“For organisations facing the compounding threats of ageing assets, a retiring workforce, and evolving cyber attacks, the status quo is no longer an option.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchBallymena, United KingdomHQ recorded Nov 5, 2026201-500177 contacts →

Exact match

“With 45+ years in business, Dowds expertise spans the full lifecycle of complex build environments – from initial design and systems integration to final handover and beyond.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchGlenrothes, United KingdomHQ recorded Nov 5, 202651-200142 contacts →

Exact match

“Shaping the future, together.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchFrimley, United KingdomHQ recorded Nov 5, 202651-200120 contacts →

Exact match

“Cinos is an industry-leading, agile, and innovative systems integrator.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchEynsham, United KingdomHQ recorded Nov 5, 202651-200115 contacts →

Exact match

“European Electronique is a leading UK systems Integrator, specialising in the delivery of secure technology platforms including Hybrid IT, Cyber Security and Networking…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchStone, United KingdomHQ recorded Nov 5, 202651-200109 contacts →

Exact match

“In May 2025, Bilfinger Group welcomed nZero Group (Thyson Technology & Orbital Gas Systems) into their UK Engineering and Maintenance business.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchMansfield, United KingdomHQ recorded Nov 5, 202651-200102 contacts →

Exact match

“Better protect your people, places and spaces.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchYateley, United KingdomHQ recorded Nov 5, 202651-20095 contacts →

Exact match

“As a System Integrator for over 37 years, Adsyst (Automation) Ltd has been providing complex Control Systems for Process Control, Automation and Telemetry to customers worldwide.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchPortsmouth, United KingdomHQ recorded Nov 5, 202651-20091 contacts →

Exact match

“Connecting people, places, and possibilities through transformative workplace technology.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchBristol, United KingdomHQ recorded Nov 5, 202651-20083 contacts →

Exact match

“Synoptix was formed in 2011 to provide engineering solutions across various technical industries.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchBracknell, United KingdomHQ recorded Nov 5, 202651-20082 contacts →

Exact match

“KCP | Network Solutions and Design | Software Development | Automation Since 2008 KCP built a legacy of trust with our global customers by becoming a leading provider of SMART…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchLeeds, United KingdomHQ recorded Nov 5, 202651-20080 contacts →

Exact match

“Bluesmith specialises in bespoke systems for Blue Chip and government clients.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchCanterbury, United KingdomHQ recorded Nov 5, 202651-20076 contacts →

Exact match

“ADM Computing is an independent, family-owned IT services provider headquartered in Canterbury, supporting organisations across Kent, London and the South East since 1984.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchWooburn Green, United KingdomHQ recorded Nov 5, 202651-20076 contacts →

Exact match

“CST is an I.T.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchWidnes, United KingdomHQ recorded Nov 5, 202651-20075 contacts →

Exact match

“Renowned across numerous sectors as 'the systems integrator of choice', we have built a reputation on delivering high quality, value-for-money solutions that enhance production…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchEly, United KingdomHQ recorded Nov 5, 202651-20068 contacts →

Exact match

“dB Broadcast offers consultancy, project management, systems engineering, software configuration, equipment sourcing and system installation world-wide.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchHolborn, United KingdomHQ recorded Nov 5, 202651-20068 contacts →

Exact match

“Infoteck Solutions: Empowering Integration and Automation Welcome to Infoteck Solutions, your trusted partner in seamless integration and efficient automation.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchHinckley, United KingdomHQ recorded Nov 5, 202651-20064 contacts →

Exact match

“Elmleigh are specialists in the integration of electrical and mechanical automation systems offering a complete Project Management service from conception through design…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchHarlow, United KingdomHQ recorded Nov 5, 2026201-50060 contacts →

Exact match

“At Alphatrack Systems Ltd, we don’t just install equipment-we engineer integrated solutions that deliver safety, compliance, and ultimate peace of mind.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchKettering, United KingdomHQ recorded Nov 5, 202651-20060 contacts →

Exact match

“It's a bold claim to call ourselves IT Superheroes, but hey, we’re just echoing what our customers say about us!”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchNewport, United KingdomHQ recorded Nov 5, 202651-20059 contacts →

Exact match

“IAC is the UK's leading Independent systems integrator, specialising primarily in variable speed drive systems.”

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

Showing 23 of 640 systems integration services based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 8,549 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Systems integration services based in the United Kingdom at a glance

As of Nov 5, 2026
46.9%Verified-email coverage
28.5Average contacts per company
1-10Median size (employees)
19.7%Largest-city concentration · London
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
334
11-50
198
51-200
73
201-500
11
501-1,000
6
1,001-5,000
1
5,001-10,000
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 640 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 “systems integration services” 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 8,549 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.

Systems integration services 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 “systems integration services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many systems integration services are there based in the United Kingdom?

RevenueBase identified 640 company matches for systems integration services 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?

Trinity Fire & Security Systems tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most systems integration services?

London leads with 126 company records, followed by Bristol (16) and Manchester (15).

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 8,549 professional contacts with verified work emails tracked across these 640 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.