Company lists · Data refreshed September 2026

Top 25 Defence companies based in the United Kingdom

RevenueBase identified 120 company matches for defence companies associated with the United Kingdom as of September 2026 and tracks 74,383 professional contacts across them, including 17,333 with verified work emails. London is the largest hub.

This list covers company matches for defence companies 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 19, 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 19, 2026 How this list was built
120Companies
74,383Contacts tracked
17,333Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest defence companies based in the United Kingdom

Ranked by team size
Top 25 of 120 company matches for defence companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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 Sep 19, 202610001+39,449 contacts →

Exact match

“At BAE Systems, we help our customers to stay a step ahead when protecting people and national security, critical infrastructure and vital information.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 19, 202610001+14,090 contacts →

Exact match

“Babcock is a FTSE 100 defence company operating in our focus countries of the UK, Australasia, Canada, France and South Africa, with exports to additional markets.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3Exact matchFarnborough, United KingdomHQ recorded Sep 19, 20265,001-10,0004,442 contacts →

Exact match

“QinetiQ is an integrated global defence and security company focused on mission-led innovation.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4Exact matchChristchurch, United KingdomHQ recorded Sep 19, 2026501-1,000795 contacts →

Exact match

“Cobham Ltd”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5Exact matchBeckington, United KingdomHQ recorded Sep 19, 2026201-500392 contacts →

Exact match

“For over 60 years, SEA has delivered research, development, manufacturing, training, and support of complex maritime systems to the Royal Navy, international partners, and…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6Exact matchUnited KingdomHQ recorded Sep 19, 2026501-1,000130 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 19, 2026 · View company records in RevenueBase
7Exact matchGosport, United KingdomHQ recorded Sep 19, 202651-200120 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 19, 2026 · View company records in RevenueBase
8Exact matchChertsey, United KingdomHQ recorded Sep 19, 202651-200105 contacts →

Exact match

“Drumgrange is an independent British engineering company, specialising in the design, development, manufacture and through-life support of electronics and communications systems.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 19, 202651-20088 contacts →

Exact match

“Established in 2001, Defence iQ has grown to become one of the world’s largest defence events and media organisations.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10Exact matchSandwich, United KingdomHQ recorded Sep 19, 202651-20044 contacts →

Exact match

“WE ARE HIRING - Instro are a rapidly evolving company with some exciting new roles available to support our growth and strategy.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 19, 202651-20043 contacts →

Exact match

“Tods Technology is a marine defence company based in Portland, Dorset, UK, with Offices in Dorchester, Dorset, UK.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 19, 202611-5043 contacts →

Exact match

“Shephard Group delivers trusted insight and marketing solutions to support informed decisions across the global defence ecosystem.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13Exact matchBordon, United KingdomHQ recorded Sep 19, 202611-5033 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14Exact matchSherborne, United KingdomHQ recorded Sep 19, 202651-20033 contacts →

Exact match

“Aviation Requirements (AR) is an established Defence Consultancy providing specialist support to the UK Ministry of Defence (MoD) and Defence Sector Industries.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15Exact matchFarnborough, United KingdomHQ recorded Sep 19, 202611-5022 contacts →

Exact match

“What We Do The UK Defence Solutions Centre (UKDSC) reaches into the broad UK value chain; from the largest defence prime contractors through to the highly innovative SMEs, to…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16Exact matchTheale, United KingdomHQ recorded Sep 19, 20261,001-5,00018 contacts →

Exact match

“Cohort plc is an AIM listed parent company of six innovative, agile and responsive businesses operating in defence and related markets.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17Exact matchRudgeway, United KingdomHQ recorded Sep 19, 20261-1018 contacts →

Exact match

“As a trusted membership organisation, Team Defence Information (TD-Info) brings together Industry and the MOD, collaborating to optimise the value from business information…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Sep 19, 202651-20018 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 19, 2026 · View company records in RevenueBase
19Exact matchSemley, United KingdomHQ recorded Sep 19, 202611-5018 contacts →

Exact match

“Rotron Aerospace is an advanced defence technology company.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20Exact matchBristol, United KingdomHQ recorded Sep 19, 202611-5012 contacts →

Exact match

“We are a small, dynamic product and services company based in Bristol, UK.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21Exact matchGlasgow, United KingdomHQ recorded Sep 19, 202651-20011 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22Exact matchFarnborough, United KingdomHQ recorded Sep 19, 20261-1011 contacts →

Exact match

“FAC enables its members to become more competitive and increase their market share through facilitating local and international trading, technology transfer and development…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23Exact matchRochester, United KingdomHQ recorded Sep 19, 202611-5011 contacts →

Exact match

“Kent Modular Electronics Ltd (KME) is a UK based Company and was established in 1976.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24Exact matchSlough, United KingdomHQ recorded Sep 19, 202611-509 contacts →

Exact match

“AEI Systems – SYS Group | 65+ Years of Medium-Calibre Firepower Excellence AEI Systems (UK), a valued member of the SYS Group – one of Türkiye’s top 10 defence companies – and is…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25Exact matchExeter, United KingdomHQ recorded Sep 19, 20261-108 contacts →

Exact match

“Innovating Growth and Change “A specialist with real market knowledge offering business growth expertise to companies with high value technologies and services who wish to expand…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

Showing 25 of 120 defence companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 17,333 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Defence companies based in the United Kingdom at a glance

As of Sep 19, 2026
23.3%Verified-email coverage
619.9Average contacts per company
11-50Median size (employees)
30.8%Largest-city concentration · London
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
58
11-50
27
51-200
13
201-500
4
501-1,000
3
1,001-5,000
4
5,001-10,000
1
10001+
9

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 120 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 “defence companies” 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 17,333 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 19, 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 “defence companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many defence companies are there based in the United Kingdom?

RevenueBase identified 120 company matches for defence companies 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?

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

Which city has the most defence companies?

London leads with 37 company records, followed by Bristol (10) and Farnborough (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 17,333 professional contacts with verified work emails tracked across these 120 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 19, 2026.

Ready to reach these companies? Verified emails and direct dials for all 120 defence companies based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

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.