Company lists · Data refreshed September 2026

Top 25 Defense systems integrators based in the United Kingdom

RevenueBase identified 80 company matches for defense systems integrators associated with the United Kingdom as of September 2026 and tracks 4,141 professional contacts across them, including 1,426 with verified work emails and 608 with mobile numbers. London is the largest hub.

This list covers company matches for defense systems integrators 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 September 1, 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 Sep 1, 2026 How this list was built
80Companies
4,141Contacts tracked
1,426Verified emails
608Mobile numbers
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The 25 largest defense systems integrators based in the United Kingdom

Ranked by team size
Top 25 of 80 company matches for defense systems integrators based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 1, 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 matchChristchurch, United Kingdom501-1,000796 contacts →

Exact match

“Cobham Ltd”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
2Exact matchLondon, United Kingdom501-1,000674 contacts →

Exact match

“Metrea, formerly Meta Aerospace, offers a deep stack of defense capabilities and services for our customers and partners, allowing them to anticipate, secure, and defend their…”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
3Exact matchWallsend, United Kingdom501-1,000385 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 · Sep 1, 2026 · View company records in RevenueBase
4Exact matchRedhill, United Kingdom201-500274 contacts →

Exact match

“Chelton is the trusted name in aerospace and defence - where innovation meets reliability.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
5Exact matchFareham, United Kingdom201-500240 contacts →

Exact match

“IDS Ingegneria Dei Sistemi SpA, a Fincantieri NexTech company, is an engineering and systems technologies company providing research, innovation and products in Electromagnetic…”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
6Exact matchBirmingham, United Kingdom201-500202 contacts →

Exact match

“Founded in 1996 we have grown into one of the UK and Ireland’s leading qualified and accredited security and fire systems integrators, working across Europe to bring together…”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
7Exact matchHorsham, United Kingdom201-500177 contacts →

Exact match

“Defence Leaders around the world work with Chess for market-leading, reliable defence systems.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
8Exact matchUnited Kingdom501-1,000135 contacts →

Exact match

“ESUK is a trusted partner to the UK Armed Forces, delivering advanced technology and innovation that strengthen national security and operational advantage.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
9Exact matchGosport, United Kingdom51-200122 contacts →

Exact match

“STS Defence, a part of the Cicor Group, is a UK-based engineering and technology company specialising in mission-critical, secure communications & networks, electronic warfare &…”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
10Exact matchWitney, United Kingdom51-200116 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 · Sep 1, 2026 · View company records in RevenueBase
11Exact matchRedditch, United Kingdom51-200114 contacts →

Exact match

“Steatite Ltd is a market leader in the design, production, test and supply of rugged industrial computers, MANET radio systems, advanced wideband antennas, and imaging…”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
12Exact matchLeeds, United Kingdom51-20096 contacts →

Exact match

“Better protect your people, places and spaces.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
13Exact matchHarlow, United Kingdom201-50056 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 · Sep 1, 2026 · View company records in RevenueBase
14Exact matchBordon, United Kingdom11-5033 contacts →

Exact match

“Standing at the crossroads of designing, building, testing and deploying secure solutions for Defence.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
15Exact matchPreston, United Kingdom11-5030 contacts →

Exact match

“Established in Grantfen has evolved into a dynamic security systems integrator and led the industry developing into a professional services business whilst retaining its core…”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
16Exact matchLondon, United Kingdom11-5027 contacts →

Exact match

“At Kore Systems, we’re with you every step of the way.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
17Exact matchLondon, United Kingdom11-5022 contacts →

Exact match

“Principle Networks works with commercial and regulated organisations to reduce cyber risk and cost by simplifying security and network architecture.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
18Exact matchLlanishen Cardiff South, United Kingdom11-5020 contacts →

Exact match

“Our purpose: We foster a forward-thinking, multi-disciplinary organisation that continues to attract talented people and collaborates with like-minded organisations to make a…”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
19Exact matchGuildford, United Kingdom11-5020 contacts →

Exact match

“Kaon Ltd.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
20Exact matchLondon, United Kingdom51-20017 contacts →

Exact match

“The Exsel Group is a leading independent defence technology solutions company – providing engineering solutions, technology systems and support services to Defence and Industry…”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
21Exact matchLondon, United Kingdom1-1014 contacts →

Exact match

“Alchem is a data and systems integrator providing high-end technical capabilities in the national security, defence, and critical infrastructure sectors.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
22Exact matchNewtown Wales, United Kingdom11-5014 contacts →

Exact match

“We design, build, and deliver secure digital systems for defence, national security, and critical national infrastructure.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
23Exact matchChristchurch, United Kingdom11-5011 contacts →

Exact match

“Defense Advancement (DA) is a Strategic Sourcing Hub for the global defense industry.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
24Exact matchWelshpool, United Kingdom11-5010 contacts →

Exact match

“Exsel Electronics, part of the Exsel Group, is driven by a mission to protect the digital landscapes of today and tomorrow.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
25Exact matchLondon, United Kingdom51-2006 contacts →

Exact match

“Ansador Ltd has been privately owned since it was founded in 1982, providing system solutions to corporate and global clients across EMEA.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase

Showing 25 of 80 defense systems integrators based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,426 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Defense systems integrators based in the United Kingdom at a glance

As of Sep 1, 2026
34.4%Verified-email coverage
14.7%Mobile-number coverage
51.8Average contacts per company
11-50Median size (employees)
22.5%Largest-city concentration · London
Sep 1, 2026Page data refreshed

Companies by employee count

1-10
33
11-50
24
51-200
12
201-500
5
501-1,000
4
10001+
1

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 “defense systems integrators” 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 1,426 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 September 1, 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.

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

How many defense systems integrators are there based in the United Kingdom?

RevenueBase identified 80 company matches for defense systems integrators associated with the United Kingdom as of September 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?

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

Which city has the most defense systems integrators?

London leads with 18 company records, followed by Hereford (4) and Welshpool (2).

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 1,426 professional contacts with verified work emails tracked across these 80 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 September 1, 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.