Company lists · Data refreshed September 2026

Top 25 Enterprise security architecture services based in London, United Kingdom

Name: Enterprise security architecture services based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 103 companies tracked

RevenueBase identified 103 enterprise security architecture services headquartered in London, United Kingdom as of September 2026 and tracks 597 professional contacts across them, including 188 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers enterprise security architecture services headquartered in London, 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

103Companies

597Contacts tracked

188Verified emails

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The 25 largest enterprise security architecture services based in London, United Kingdom

Ranked by team size

Top 25 of 103 enterprise security architecture services based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise security architecture services: 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	Trpglobal	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	126 contacts →
	Indirect evidence “We are TRPGLOBAL, your strategic partner in helping you with the complexities of risk management.” Source: RevenueBase Database · checked Sep 28, 2026
2	Caretower An Integrity360 Company	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	97 contacts →
	Partial evidence “As an independent IT security specialist, Caretower provide comprehensive solutions to individual problems, thus allowing our recommendations to be unbiased.” Source: RevenueBase Database · checked Sep 28, 2026
3	Marx Enterprise Transformation Architecture	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	501-1,000	49 contacts →
	Strong evidence “Marx Group is a leading global AI fueled Solutions & Products firm with a solid framework of Enterprise Architecture as Service to master rapid changes.” Source: RevenueBase Database · checked Sep 28, 2026
4	Cornerstone	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	44 contacts →
	Partial evidence “CornerStone is an award winning, independent, security and digital building consulting firm with headquarters in the UK.” Source: RevenueBase Database · checked Sep 28, 2026
5	LMS Security	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	20 contacts →
	Partial evidence “LMS Security are a fully Independent, privately owned, Internationally recognised and accredited Security Consultancy; owned and built by Electronic and Physical Security…” Source: RevenueBase Database · checked Sep 28, 2026
6	NGS Next Generation Security	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	20 contacts →
	Partial evidence “Formed in 2018, NGS (UK) Ltd are independent, Next Generation Security trusted advisors, providing all-encompassing solutions from the perimeter to the endpoint.” Source: RevenueBase Database · checked Sep 28, 2026
7	Sinevis	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	17 contacts →
	Indirect evidence “We are a leading cybersecurity services organization with more than a decade of proven expertise in consulting, solution implementation and managed services.” Source: RevenueBase Database · checked Sep 28, 2026
8	2-Sec	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	11 contacts →
	Partial evidence “At 2\|SEC Consulting, we deliver an end-to-end service of cyber and information security solutions which are tailored to each client’s exact security needs.” Source: RevenueBase Database · checked Sep 28, 2026
9	Intelance	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	9 contacts →
	Strong evidence “Intelance is a specialist advisory and assurance firm for enterprise architecture, cybersecurity, and AI strategy and governance.” Source: RevenueBase Database · checked Sep 28, 2026
10	Stratia Cyber	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	8 contacts →
	Partial evidence “Stratia Cyber is an independent, technology agnostic company providing high quality, pragmatic cyber security consultancy and expertise, is a founder member of the NCSC Certified…” Source: RevenueBase Database · checked Sep 28, 2026
11	Cortida	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	7 contacts →
	Indirect evidence “Through excellent consultancy we protect clients from reputation damage, financial penalties and the operational disruption associated with data incidents and cyberattacks.” Source: RevenueBase Database · checked Sep 28, 2026
12	Everity LTD	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	5 contacts →
	Partial evidence “Information Security Consultancy, MSSP” Source: RevenueBase Database · checked Sep 28, 2026
13	Pias Business Solutions	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	5 contacts →
	Indirect evidence “We are aware of the how much dependent on information technologies the modern business is.” Source: RevenueBase Database · checked Sep 28, 2026
14	Secured Projects	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	3 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
15	Objects Consulting	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	3 contacts →
	Indirect evidence “Engage senior executives and technology teams in organizations to help understand then improve their cybersecurity maturity.” Source: RevenueBase Database · checked Sep 28, 2026
16	Black Arrows Consulting	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	2 contacts →
	Partial evidence “Your security needs to weather business and technology changes whilst also dealing with an evolving threat landscape We can help with resilient, scalable and agile cybersecurity…” Source: RevenueBase Database · checked Sep 28, 2026
17	Sesseto Limited	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	2 contacts →
	Partial evidence “Good security consultants are difficult to find, expensive to employ and hard to keep, but we believe that your business doesn’t have to incur a high cost of delivery in order to…” Source: RevenueBase Database · checked Sep 28, 2026
18	Evasec LTD	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	2 contacts →
	Strong evidence “We are an Information Security Consultancy specialised in the fields of Information Security Management, IT Security Architecture, Intellectual Property Protection and Digital…” Source: RevenueBase Database · checked Sep 28, 2026
19	Nicolson Bray	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	2 contacts →
	Indirect evidence “Nicolson Bray is now closed for new business.” Source: RevenueBase Database · checked Sep 28, 2026
20	Centilon LTD	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	2 contacts →
	Partial evidence “Centilon Limited provides leading edge security solutions, consultancy and bespoke training to organisations that have a requirement to secure & manage their network…” Source: RevenueBase Database · checked Sep 28, 2026
21	Athencis	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	2 contacts →
	Strong evidence “Athencis is a consultancy specialising in enterprise, solutions and security architecture.” Source: RevenueBase Database · checked Sep 28, 2026
22	EST Applied Intelligence	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	1 contacts →
	Strong evidence “EST Applied Intelligence is a specialist enterprise security consultancy dedicated to building strategic resilience in an increasingly complex digital world.” Source: RevenueBase Database · checked Sep 28, 2026
23	Compliancelogic LTD	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	1 contacts →
	Indirect evidence “ComplianceLogic Ltd is driven by the collective leadership and expertise of every member of our team.” Source: RevenueBase Database · checked Sep 28, 2026
24	Enkrypta	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	1 contacts →
	Partial evidence “Organisations are increasingly operating in hostile environments which often leave them vulnerable to a number of security threats.” Source: RevenueBase Database · checked Sep 28, 2026
25	Kedos Consulting Limited	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	1 contacts →
	Indirect evidence “Since 2009, Kedos has been a leading provider of IT services, helping global brands modernise and drive change.” 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: enterprise security architecture services. 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 enterprise security architecture services.
Partial evidence: Its own public description names part of enterprise security architecture services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name enterprise security architecture services. 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 103 enterprise security architecture services based in London, United Kingdom

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Enterprise security architecture services based in London, United Kingdom at a glance

As of Sep 28, 2026

31.5%Verified-email coverage

5.8Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 103 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 enterprise security architecture services, 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 London, United Kingdom whose own description of what they do matches “enterprise security architecture services”. 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 enterprise security architecture services), 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 enterprise security architecture services, and records with no verified work email. Companies headquartered outside London 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, 188 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.

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 enterprise security architecture services, 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 enterprise security architecture services are there based in London, United Kingdom?

RevenueBase identified 103 enterprise security architecture services headquartered in London, 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?

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

Which city in the United Kingdom has the most enterprise security architecture services?

London leads the United Kingdom with 103 headquartered companies, followed by Manchester (9) and Birmingham (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 188 verified decision-maker contacts tracked across these 103 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.