Company lists · Data refreshed September 2026

Top 25 Defense and security research organizations based in the United Kingdom

RevenueBase identified 112 defense and security research organizations headquartered in the United Kingdom as of September 2026 and tracks 50,522 professional contacts across them, including 12,677 with verified work emails. London is the largest hub.

This list covers defense and security research organizations headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review
112Companies
50,522Contacts tracked
12,677Verified emails
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The 25 largest defense and security research organizations based in the United Kingdom

Ranked by team size
Top 25 of 112 defense and security research organizations based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to defense and security research organizations: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceLondon, United KingdomHQ checked Sep 28, 202610001+39,449 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
2Strong evidenceFarnborough, United KingdomHQ checked Sep 28, 20265,001-10,0004,442 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceReading, United KingdomHQ checked Sep 28, 20265,001-10,0001,775 contacts →

Indirect evidence

“Our purpose is to protect the UK through nuclear science and technology, and our mission is to design and manufacture warheads and provide nuclear services to meet the needs of…”

Source: RevenueBase Database · checked Sep 28, 2026
4Strong evidenceRomsey, United KingdomHQ checked Sep 28, 20261,001-5,000679 contacts →

Strong evidence

“At Roke, we stand at the forefront of defence and security, delivering cutting-edge intelligence and engineering solutions that protect nations, troops, borders, and businesses.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceCroydon, United KingdomHQ checked Sep 28, 2026501-1,000608 contacts →

Indirect evidence

“In a complex global landscape, leaders need accurate information and full context quickly.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202651-200313 contacts →

Indirect evidence

“The Royal United Services Institute (RUSI) is a unique institution, founded in 1831 by the Duke of Wellington, RUSI embodies nearly two centuries of forward thinking, free…”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceLondon, United KingdomHQ checked Sep 28, 202651-200233 contacts →

Partial evidence

“The International Institute for Strategic Studies helps the world understand and address global security challenges.”

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceLondon, United KingdomHQ checked Sep 28, 2026501-1,000203 contacts →

Indirect evidence

“Technological excellence helping to keep Britain safe.”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceLondon, United KingdomHQ checked Sep 28, 202651-20088 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidenceBordon, United KingdomHQ checked Sep 28, 202611-5033 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
11Strong evidenceMelbourn, United KingdomHQ checked Sep 28, 202611-5023 contacts →

Strong evidence

“Awerian provides research and development services that extend and enhance the ability of the United Kingdom and its Allies to defend themselves and to protect the future…”

Source: RevenueBase Database · checked Sep 28, 2026
12Strong evidenceLondon, United KingdomHQ checked Sep 28, 202611-5021 contacts →

Strong evidence

“AnotherDay is a new kind of defence & security consulting firm established to bring the power of effective intelligence and strategy to the challenge of safeguarding individuals…”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceLondon, United KingdomHQ checked Sep 28, 202651-20018 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
14Strong evidenceBristol, United KingdomHQ checked Sep 28, 202611-5014 contacts →

Strong evidence

“Modux was founded in 2008, initially delivering research, software development and consultancy services within the UK defence sector.”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceLondon, United KingdomHQ checked Sep 28, 20261-1013 contacts →

Partial evidence

“The Global Network on Extremism and Technology (GNET) is an academic research initiative backed by the Global Internet Forum to Counter Terrorism (GIFCT), an independent but…”

Source: RevenueBase Database · checked Sep 28, 2026
16Strong evidenceLondon, United KingdomHQ checked Sep 28, 202611-5011 contacts →

Strong evidence

“At Acubed IT, we design and deliver secure, scalable, and innovative technology solutions across the National Security, Defence, and Public Sector ecosystems.”

Source: RevenueBase Database · checked Sep 28, 2026
17Strong evidenceCheltenham, United KingdomHQ checked Sep 28, 202611-5010 contacts →

Strong evidence

“We're a specialised supplier providing cyber security research, engineering services and training.”

Source: RevenueBase Database · checked Sep 28, 2026
18Partial evidenceCambridge, United KingdomHQ checked Sep 28, 20261-108 contacts →

Partial evidence

“Iconal Technology Ltd is an independent contract research and consultancy company, based in Cambridge, UK which works exclusively for government agencies involved in homeland…”

Source: RevenueBase Database · checked Sep 28, 2026
19Partial evidenceDunfermline, United KingdomHQ checked Sep 28, 202611-507 contacts →

Partial evidence

“Survivability Consulting Limited is a leading technical defence consultancy.”

Source: RevenueBase Database · checked Sep 28, 2026
20Strong evidenceLondon, United KingdomHQ checked Sep 28, 20261-107 contacts →

Strong evidence

“The London Defence Conference is an annual event bringing together policymakers, military leaders, industry experts, and academics to discuss global security challenges and…”

Source: RevenueBase Database · checked Sep 28, 2026
21Strong evidenceBristol, United KingdomHQ checked Sep 28, 2026201-5007 contacts →

Strong evidence

“TP Group is a leading defence and security Consultancy, with extensive expertise within Science and Technology.”

Source: RevenueBase Database · checked Sep 28, 2026
22Partial evidencePontypridd, United KingdomHQ checked Sep 28, 202611-506 contacts →

Partial evidence

“The International Centre for Policing and Security is located in the heart of South Wales.”

Source: RevenueBase Database · checked Sep 28, 2026
23Strong evidenceLondon, United KingdomHQ checked Sep 28, 20261-106 contacts →

Strong evidence

“Defence and Security Forum is a leading think tank bringing together experts to confront the most challenging global defence and security issues of our day.”

Source: RevenueBase Database · checked Sep 28, 2026
24Strong evidenceThatcham, United KingdomHQ checked Sep 28, 20261-105 contacts →

Strong evidence

“Trimax Technologies provides bespoke technology solutions and consultancy to the defence, law enforcement and security sectors.”

Source: RevenueBase Database · checked Sep 28, 2026
25Strong evidenceFarnham, United KingdomHQ checked Sep 28, 202651-2004 contacts →

Strong evidence

“Providing Marine & Land based specialist security systems for more than 30 years.@ Halo Group | Marine Security Expert - Anti Drone - Hack Take Control - Laser Defence Systems”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 112 defense and security research organizations based in the United Kingdom

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Defense and security research organizations based in the United Kingdom at a glance

As of Sep 28, 2026
25.1%Verified-email coverage
451.1Average contacts per company
11-50Median size (employees)
40.2%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
47
11-50
35
51-200
13
201-500
3
501-1,000
4
1,001-5,000
2
5,001-10,000
4
10001+
4

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 112 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among defense and security research organizations, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United Kingdom whose own description of what they do matches “defense and security research organizations”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names defense and security research organizations), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among defense and security research organizations, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 12,677 across the full list. 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 28, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Defense and security research organizations by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names defense and security research organizations, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many defense and security research organizations are there based in the United Kingdom?

RevenueBase identified 112 defense and security research organizations headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

BAE Systems, headquartered in London, tops this list with the largest team on record.

Which city has the most defense and security research organizations?

London leads with 45 headquartered companies, followed by Bristol (6) and Salisbury (5).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 12,677 verified decision-maker contacts tracked across these 112 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 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 Smart Search, 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.