Company lists · Data refreshed September 2026

Top 25 Security architecture consultants based in London, United Kingdom

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

Compiled by the RevenueBase Data Team Data refreshed Sep 13, 2026 177 companies tracked

RevenueBase identified 177 security architecture consultants headquartered in London, United Kingdom as of September 2026 and tracks 917 professional contacts across them, including 276 with verified work emails and 49 with mobile numbers. London is the largest hub.

This list covers security architecture consultants 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 13, 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 13, 2026 86% judged on-target in blind review

177Companies

917Contacts tracked

276Verified emails

49Mobile numbers

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The 25 largest security architecture consultants based in London, United Kingdom

Ranked by team size

Top 25 of 177 security architecture consultants based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 13, 2026. RevenueBase Smart Search rates how each company's information relates to security architecture 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	Trpglobal	Indirect evidence	London, United KingdomHQ checked Sep 13, 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 13, 2026
2	Caretower An Integrity360 Company	Partial evidence	London, United KingdomHQ checked Sep 13, 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 13, 2026
3	Sytel Reply	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	68 contacts →
	Partial evidence “Sytel Reply is the Reply Company focused on Networks and Security.” Source: RevenueBase Database · checked Sep 13, 2026
4	Cornerstone	Partial evidence	London, United KingdomHQ checked Sep 13, 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 13, 2026
5	Secforce LTD	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	39 contacts →
	Partial evidence “SECFORCE are vendor independent offensive security specialists providing effective business risk intelligence and strategic security consulting.” Source: RevenueBase Database · checked Sep 13, 2026
6	Se24	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	24 contacts →
	Strong evidence “A core member of the Chelsea Group Security & Crisis Management Division, Security Exchange is dedicated to the provision of specialist consultancy on a worldwide basis…” Source: RevenueBase Database · checked Sep 13, 2026
7	LMS Security	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	20 contacts →
	Strong 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 13, 2026
8	NGS Next Generation Security	Partial evidence	London, United KingdomHQ checked Sep 13, 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 13, 2026
9	Sinevis	Indirect evidence	London, United KingdomHQ checked Sep 13, 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 13, 2026
10	Alltime Technologies Limited	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	15 contacts →
	Strong evidence “Alltime Technologies Limited is a London based Cyber Security focused Managed Services and Consultancy provider.” Source: RevenueBase Database · checked Sep 13, 2026
11	2-Sec	Partial evidence	London, United KingdomHQ checked Sep 13, 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 13, 2026
12	Hydras	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	10 contacts →
	Strong evidence “Hydras is a Digital & Cloud Transformation Consultancy that specialise in Cyber Security.” Source: RevenueBase Database · checked Sep 13, 2026
13	SGW Consulting Group	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	10 contacts →
	Indirect evidence “SGW work with planning authorities, architects, property developers, real estate management professionals, transportation and public sector clients to help create safe and secure…” Source: RevenueBase Database · checked Sep 13, 2026
14	Intelance	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	9 contacts →
	Partial evidence “Intelance is a specialist advisory and assurance firm for enterprise architecture, cybersecurity, and AI strategy and governance.” Source: RevenueBase Database · checked Sep 13, 2026
15	Icyberdefence	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	8 contacts →
	Partial evidence “iCyberDefence is a boutique cybersecurity services firm that offers a wide range of security consulting and security engineering services with the necessary products and tools.” Source: RevenueBase Database · checked Sep 13, 2026
16	Stratia Cyber	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	8 contacts →
	Strong 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 13, 2026
17	Cloud9 Security	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	7 contacts →
	Partial evidence “Navigating Microsoft Cloud security shouldn't feel like walking through fog.” Source: RevenueBase Database · checked Sep 13, 2026
18	Cortida	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	7 contacts →
	Partial 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 13, 2026
19	Kloudwerk	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	7 contacts →
	Partial evidence “Kloudwerk offers a game-changing approach to cyber security consulting for SMEs.” Source: RevenueBase Database · checked Sep 13, 2026
20	Everity LTD	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	5 contacts →
	Strong evidence “Information Security Consultancy, MSSP” Source: RevenueBase Database · checked Sep 13, 2026
21	Pias Business Solutions	Indirect evidence	London, United KingdomHQ checked Sep 13, 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 13, 2026
22	Westlands Advisory	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	4 contacts →
	Partial evidence “Westlands Advisory (WA) works exclusively on security market issues, helping industry, government and security professionals to minimise business risk and improve performance…” Source: RevenueBase Database · checked Sep 13, 2026
23	Capsileo LTD	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	4 contacts →
	Partial evidence “Agile and sustainable Digital transformation : A dynamic force of sound consultants who have sit in the chairs of CTO and CiSO roles, experts in a spectrum of IT disciplines…” Source: RevenueBase Database · checked Sep 13, 2026
24	Secured Projects	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	3 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 13, 2026
25	Metis Security LTD	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	3 contacts →
	Strong evidence “Metis Security is an independent UK cybersecurity consultancy specialising in Microsoft cloud security control effectiveness.” Source: RevenueBase Database · checked Sep 13, 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: security architecture 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 security architecture consultants.
Partial evidence: Its own public description names part of security architecture consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name security architecture 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 177 security architecture consultants based in London, United Kingdom

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Security architecture consultants based in London, United Kingdom at a glance

As of Sep 13, 2026

30.1%Verified-email coverage

5.3%Mobile-number coverage

5.2Average contacts per company

1-10Median size (employees)

111.3%Largest-city concentration · London

Sep 13, 2026Page data refreshed

Companies by employee count

1-10

116

11-50

51-200

201-500

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 15.0d

2140–30

6031–60

261–90

090–180

0180+

Company record updated

Median 68.0d

00–30

34731–60

37961–90

13090–180

61180+

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 security architecture 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 London, United Kingdom whose own description of what they do matches “security architecture 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 security architecture 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 security architecture consultants, 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, 276 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 13, 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.

Security architecture consultants by metro in the United Kingdom

Security architecture consultants in London197

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 security architecture 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 security architecture consultants are there based in London, United Kingdom?

RevenueBase identified 177 security architecture consultants 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 has the most security architecture consultants?

London leads with 197 headquartered companies, followed by Manchester (16) and Bristol (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 276 verified decision-maker contacts tracked across these 177 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 13, 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.