Company lists · Data refreshed September 2026

Top 25 Defense technology consulting companies based in the United Kingdom

RevenueBase identified 245 defense technology consulting companies headquartered in the United Kingdom as of September 2026 and tracks 44,521 professional contacts across them, including 11,159 with verified work emails. London is the largest hub.

This list covers defense technology consulting companies 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 16, 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 16, 2026 86% judged on-target in blind review
245Companies
44,521Contacts tracked
11,159Verified emails
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The 25 largest defense technology consulting companies based in the United Kingdom

Ranked by team size
Top 25 of 245 defense technology consulting companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to defense technology consulting companies: 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
1Indirect evidenceLondon, United KingdomHQ checked Sep 16, 202610001+39,449 contacts →

Indirect 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 16, 2026
2Partial evidenceLeatherhead, United KingdomHQ checked Sep 16, 20261,001-5,0001,437 contacts →

Partial evidence

“With offices in the UK and Australia, Frazer-Nash is a leading systems, engineering and technology company.”

Source: RevenueBase Database · checked Sep 16, 2026
3Partial evidenceRomsey, United KingdomHQ checked Sep 16, 20261,001-5,000679 contacts →

Partial 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 16, 2026
4Indirect evidenceCroydon, United KingdomHQ checked Sep 16, 2026501-1,000608 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
5Partial evidenceLondon, United KingdomHQ checked Sep 16, 2026201-500459 contacts →

Partial evidence

“Analysys Mason is the leading specialist consultancy, creating lasting value in technology-intensive industries, including telecoms, digital infrastructure, software, IT services…”

Source: RevenueBase Database · checked Sep 16, 2026
6Partial evidenceCheltenham, United KingdomHQ checked Sep 16, 202651-200156 contacts →

Partial evidence

“CDS Defence & Security is a technical consultancy working to enhance operational effectiveness and bring about behavioural change in the defence sector.”

Source: RevenueBase Database · checked Sep 16, 2026
7Partial evidenceBristol, United KingdomHQ checked Sep 16, 202651-200116 contacts →

Partial evidence

“Nova Systems is a leading global engineering services and technology solutions company with more than employees working from strategically located offices around the world…”

Source: RevenueBase Database · checked Sep 16, 2026
8Partial evidenceBasingstoke, United KingdomHQ checked Sep 16, 202611-5085 contacts →

Partial evidence

“Amethyst Risk Management is a leading cybersecurity consultancy supplying expert services and support to the UK Government, Defence, Operators of Essential Services, and the…”

Source: RevenueBase Database · checked Sep 16, 2026
9Partial evidenceLondon, United KingdomHQ checked Sep 16, 202651-20078 contacts →

Partial evidence

“Principle One provides Systems Engineering, Architecture and Business Consulting services within the Law Enforcement, National Security, Health and wider public sector.”

Source: RevenueBase Database · checked Sep 16, 2026
10Indirect evidenceAbingdon, United KingdomHQ checked Sep 16, 20265,001-10,00075 contacts →

Indirect evidence

“Tessella is now Capgemini Engineering.”

Source: RevenueBase Database · checked Sep 16, 2026
11Partial evidenceBristol, United KingdomHQ checked Sep 16, 202651-20075 contacts →

Partial evidence

“SQEP provides security-cleared experts across defence, aerospace and critical infrastructure.”

Source: RevenueBase Database · checked Sep 16, 2026
12Indirect evidenceBristol, United KingdomHQ checked Sep 16, 202651-20075 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
13Partial evidencePoole, United KingdomHQ checked Sep 16, 202611-5066 contacts →

Partial evidence

“At ABP our mission is to support organisations through our high-performance precision engineering for the civilian and defence sectors.”

Source: RevenueBase Database · checked Sep 16, 2026
14Partial evidenceCheltenham, United KingdomHQ checked Sep 16, 202651-20066 contacts →

Partial evidence

“In 2019, our founders were working as engineers solving complex cross-domain problems in defence and security organisations.”

Source: RevenueBase Database · checked Sep 16, 2026
15Indirect evidenceLondon, United KingdomHQ checked Sep 16, 202651-20060 contacts →

Indirect evidence

“We provide deep expertise with technical and business specialists to help clients secure and protect the UK.”

Source: RevenueBase Database · checked Sep 16, 2026
16Partial evidenceGuildford, United KingdomHQ checked Sep 16, 202611-5049 contacts →

Partial evidence

“Damia Group is a trusted talent solutions partner with over 30 years of experience supporting security-cleared environments, including defence, government, space, and aerospace.”

Source: RevenueBase Database · checked Sep 16, 2026
17Partial evidenceLondon, United KingdomHQ checked Sep 16, 202611-5043 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
18Indirect evidenceWinfrith Newburgh, United KingdomHQ checked Sep 16, 202611-5036 contacts →

Indirect evidence

“X-Net (Services) Ltd Formerly known as Kimcell Ltd, incorporating the X-Net, e-mango and Datacenta Hosting brands.”

Source: RevenueBase Database · checked Sep 16, 2026
19Partial evidenceSherborne, United KingdomHQ checked Sep 16, 202651-20033 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
20Partial evidenceGuildford, United KingdomHQ checked Sep 16, 202651-20032 contacts →

Partial evidence

“Waymont Consulting is a small technical consultancy based in Guildford.”

Source: RevenueBase Database · checked Sep 16, 2026
21Strong evidenceCheltenham, United KingdomHQ checked Sep 16, 202611-5030 contacts →

Strong evidence

“North Tower Consulting (NTC) is a specialist technology and customised software solutions consultancy based in Cheltenham, providing professional expertise in Cyber Security…”

Source: RevenueBase Database · checked Sep 16, 2026
22Partial evidenceLondon, United KingdomHQ checked Sep 16, 2026201-50029 contacts →

Partial evidence

Defence and security services consultancy.”

Source: RevenueBase Database · checked Sep 16, 2026
23Indirect evidenceGloucestershire, United KingdomHQ checked Sep 16, 202611-5023 contacts →

Indirect evidence

“At Hamiltonian Dynamics we have a secure by design engineering mindset built into the core of our company.”

Source: RevenueBase Database · checked Sep 16, 2026
24Strong evidenceLondon, United KingdomHQ checked Sep 16, 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 16, 2026
25Indirect evidenceCardiff, United KingdomHQ checked Sep 16, 202611-5020 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 245 defense technology consulting companies based in the United Kingdom

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Defense technology consulting companies based in the United Kingdom at a glance

As of Sep 16, 2026
25.1%Verified-email coverage
181.7Average contacts per company
1-10Median size (employees)
30.6%Largest-city concentration · London
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
164
11-50
47
51-200
22
201-500
6
501-1,000
1
1,001-5,000
2
5,001-10,000
1
10001+
2

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 245 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 technology consulting companies, 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 technology consulting companies”. 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 technology consulting companies), 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 technology consulting companies, 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, 11,159 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 16, 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 technology consulting companies by metro

  • Defense technology consulting companies in London75

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 technology consulting companies, 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 technology consulting companies are there based in the United Kingdom?

RevenueBase identified 245 defense technology consulting companies 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 technology consulting companies?

London leads with 75 headquartered companies, followed by Bristol (12) and Cheltenham (9).

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 11,159 verified decision-maker contacts tracked across these 245 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 16, 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.