Company lists · Data refreshed September 2026

Top 25 Defense contractor IT consultants based in the United Kingdom

Name: Defense contractor IT consultants based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 331 companies tracked

RevenueBase identified 331 defense contractor IT consultants headquartered in the United Kingdom as of September 2026 and tracks 4,910 professional contacts across them, including 1,330 with verified work emails. London is the largest hub.

This list covers defense contractor IT consultants 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

331Companies

4,910Contacts tracked

1,330Verified emails

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The 25 largest defense contractor IT consultants based in the United Kingdom

Ranked by team size

Top 25 of 331 defense contractor IT consultants 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 contractor IT consultants: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	MTI	Indirect evidence	Staines-upon-thames, United KingdomHQ checked Sep 28, 2026	201-500	764 contacts →
	Indirect evidence “MTI provides award-winning, end-to-end technology solutions and services in cyber security and data centre for over 35 years.” Source: RevenueBase Database · checked Sep 28, 2026
2	Reliance Infosystems	Indirect evidence	West End, United KingdomHQ checked Sep 28, 2026	201-500	326 contacts →
	Indirect evidence “As our name suggests, our customers rely on us in providing suitable technology inputs to support their business goals.” Source: RevenueBase Database · checked Sep 28, 2026
3	Flat Rock Technology	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	231 contacts →
	Indirect evidence “Since 2008, Flat Rock Technology, a software engineering, SI, Cloud DevOps, Cyber Security, and Customer Experience (CX) company, has been at the forefront of providing innovative…” Source: RevenueBase Database · checked Sep 28, 2026
4	Cyberfort	Indirect evidence	Thatcham, United KingdomHQ checked Sep 28, 2026	51-200	159 contacts →
	Indirect evidence “At Cyberfort we are passionate about the cyber security services we deliver for our customers which keeps their people, data, systems and technology infrastructure secure…” Source: RevenueBase Database · checked Sep 28, 2026
5	Conosco	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	105 contacts →
	Indirect evidence “Cybersecurity specialists providing technology and telecoms solutions that gives you the leadership, experience and resilience you need to build and secure the future of work.” Source: RevenueBase Database · checked Sep 28, 2026
6	Securecloud	Partial evidence	Stoke-on-trent, United KingdomHQ checked Sep 28, 2026	51-200	98 contacts →
	Partial evidence “SecureCloud+ is a trusted service delivery partner within the defence industry.” Source: RevenueBase Database · checked Sep 28, 2026
7	Amethyst Risk Management	Strong evidence	Basingstoke, United KingdomHQ checked Sep 28, 2026	11-50	85 contacts →
	Strong 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 28, 2026
8	Principle ONE	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	78 contacts →
	Indirect 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 28, 2026
9	Baseel Partners	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	78 contacts →
	Partial evidence “We offer a broad portfolio of IT and consulting services covering Governance and Strategy, Cloud, Data, Cybersecurity, Infrastructure and Applications, Managed IT and Security.” Source: RevenueBase Database · checked Sep 28, 2026
10	Tessella	Indirect evidence	Abingdon, United KingdomHQ checked Sep 28, 2026	5,001-10,000	75 contacts →
	Indirect evidence “Tessella is now Capgemini Engineering.” Source: RevenueBase Database · checked Sep 28, 2026
11	Sqep LTD	Partial evidence	Bristol, United KingdomHQ checked Sep 28, 2026	51-200	75 contacts →
	Partial evidence “SQEP provides security-cleared experts across defence, aerospace and critical infrastructure.” Source: RevenueBase Database · checked Sep 28, 2026
12	Synoptix	Indirect evidence	Bristol, United KingdomHQ checked Sep 28, 2026	51-200	75 contacts →
	Indirect evidence “Synoptix was formed in 2011 to provide engineering solutions across various technical industries.” Source: RevenueBase Database · checked Sep 28, 2026
13	6point6 Part Of Accenture	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	68 contacts →
	Indirect evidence “6point6 drives the right change in an organisation through the positive impact of technology.” Source: RevenueBase Database · checked Sep 28, 2026
14	Daintta	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	60 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 28, 2026
15	Cyberlab	Partial evidence	Alderley Edge, United KingdomHQ checked Sep 28, 2026	51-200	57 contacts →
	Partial evidence “CyberLab is the UK-leading cyber security consultancy and managed services provider, trusted by over 1,200 enterprise businesses, government departments, and household names to…” Source: RevenueBase Database · checked Sep 28, 2026
16	Company X Consulting LTD	Strong evidence	Swindon, United KingdomHQ checked Sep 28, 2026	51-200	54 contacts →
	Strong evidence “We are a Small to Medium Enterprise (SME) Consultancy Company, formed in 2013, and recruit very high calibre, predominantly ex-military (or defence) professionals.” Source: RevenueBase Database · checked Sep 28, 2026
17	GOACO	Partial evidence	Dartford, United KingdomHQ checked Sep 28, 2026	51-200	53 contacts →
	Partial evidence “Goaco is an award-winning global consultancy partnering with both public and private sector organisations to deliver secure, user-focused and innovative digital solutions.” Source: RevenueBase Database · checked Sep 28, 2026
18	Hexegic	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	52 contacts →
	Indirect evidence “At Hexegic we are not just passionate about protecting data through our Cyber services we are passionate about helping companies release the potential of the data they hold…” Source: RevenueBase Database · checked Sep 28, 2026
19	Damia Group	Partial evidence	Guildford, United KingdomHQ checked Sep 28, 2026	11-50	49 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 28, 2026
20	Issured Limited	Indirect evidence	Milton Keynes, United KingdomHQ checked Sep 28, 2026	11-50	45 contacts →
	Indirect evidence “At Issured, we build the foundations for sustainable, people-led change.” Source: RevenueBase Database · checked Sep 28, 2026
21	Omerta	Indirect evidence	Saffron Walden, United KingdomHQ checked Sep 28, 2026	51-200	38 contacts →
	Indirect evidence “Omerta - A Global Security Technology and Services Company.” Source: RevenueBase Database · checked Sep 28, 2026
22	Intersys	Indirect evidence	Woodford Green, United KingdomHQ checked Sep 28, 2026	51-200	36 contacts →
	Indirect evidence “Intersys® is an award-winning Microsoft Solutions Partner for Modern Work.” Source: RevenueBase Database · checked Sep 28, 2026
23	X-Net Services LTD	Indirect evidence	Winfrith Newburgh, United KingdomHQ checked Sep 28, 2026	11-50	36 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 28, 2026
24	Torrid Networks Limited	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	32 contacts →
	Indirect evidence “Founded in 2006, Torrid Networks has been able to establish strong credentials in the area of cyber security products, research, consulting, managed services, education and staff…” Source: RevenueBase Database · checked Sep 28, 2026
25	Cyb3r	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	32 contacts →
	Partial evidence “CYB3R Group, is a leading provider of comprehensive Cyber Security, IT and Communications Solutions.” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: defense contractor IT consultants. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names defense contractor IT consultants.
Partial evidence: Its own public description names part of defense contractor IT consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name defense contractor IT consultants. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 331 defense contractor IT consultants based in the United Kingdom

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Defense contractor IT consultants based in the United Kingdom at a glance

As of Sep 28, 2026

27.1%Verified-email coverage

14.8Average contacts per company

1-10Median size (employees)

32.0%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

208

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 331 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 contractor IT consultants, 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 contractor IT consultants”. 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 contractor IT consultants), 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 contractor IT consultants, 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, 1,330 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 contractor IT consultants by metro

Defense contractor IT consultants in London106

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 contractor IT consultants, 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 contractor IT consultants are there based in the United Kingdom?

RevenueBase identified 331 defense contractor IT consultants 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?

MTI, headquartered in Staines-Upon-Thames, tops this list with the largest team on record.

Which city has the most defense contractor IT consultants?

London leads with 106 headquartered companies, followed by Manchester (11) and Birmingham (7).

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 1,330 verified decision-maker contacts tracked across these 331 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.