Company lists · Data refreshed September 2026

Top 25 Homeland security consultants based in the United Kingdom

Name: Homeland security 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 175 companies tracked

RevenueBase identified 175 homeland security consultants headquartered in the United Kingdom as of September 2026 and tracks 1,142 professional contacts across them, including 206 with verified work emails. London is the largest hub.

This list covers homeland security 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

175Companies

1,142Contacts tracked

206Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest homeland security consultants based in the United Kingdom

Ranked by team size

Top 25 of 175 homeland security 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 homeland security 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	SF Group	Partial evidence	Nottingham, United KingdomHQ checked Sep 28, 2026	201-500	143 contacts →
	Partial evidence “SF Group are your local knowledge experts in risk management, security, logistics and emergency solution support.” Source: RevenueBase Database · checked Sep 28, 2026
2	Minimal Risk Consultancy Limited	Strong evidence	Hereford., United KingdomHQ checked Sep 28, 2026	51-200	79 contacts →
	Strong evidence “Minimal Risk Consultancy is an Independent Security Services, Specialist Consultancy and Recruitment business with current expertise in:> Security Risk Consultancy > Security…” Source: RevenueBase Database · checked Sep 28, 2026
3	SQR Group Security Solutions LTD	Indirect evidence	Barnet, United KingdomHQ checked Sep 28, 2026	501-1,000	58 contacts →
	Indirect evidence “In today’s advanced, interconnected world, protecting the infrastructure that allows society to function is crucial.” 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	Othrys	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	33 contacts →
	Indirect evidence “Othrys is a global strategic and risk advisory firm founded in 2016.” Source: RevenueBase Database · checked Sep 28, 2026
6	Realworldhr LTD	Indirect evidence	Bacup, United KingdomHQ checked Sep 28, 2026	51-200	23 contacts →
	Indirect evidence “RealWorldHR is a UK based management consulting firm that specialises in HR and OD.” Source: RevenueBase Database · checked Sep 28, 2026
7	Anotherday	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	21 contacts →
	Partial 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
8	LMS Security	Strong evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
9	EWS EW Solutions LTD	Partial evidence	Long Bennington, United KingdomHQ checked Sep 28, 2026	11-50	20 contacts →
	Partial evidence “EWS is a unique global consultancy unlike any other.” Source: RevenueBase Database · checked Sep 28, 2026
10	Optimal Risk Group LTD	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	20 contacts →
	Indirect evidence “We optimise opportunities for our clients by managing their Risk & Resilience.” Source: RevenueBase Database · checked Sep 28, 2026
11	OSG Service Group	Indirect evidence	Wolverhampton, United KingdomHQ checked Sep 28, 2026	201-500	19 contacts →
	Indirect evidence “OSG Service Group is a first class professional service provider with a difference.” Source: RevenueBase Database · checked Sep 28, 2026
12	Critec Group Limited	Strong evidence	Wrea Green, United KingdomHQ checked Sep 28, 2026	11-50	18 contacts →
	Strong evidence “Critec Group is an independent security risk consultancy, specialising in comprehensive security risk, threat, and vulnerability analysis, as well as security mitigation design…” Source: RevenueBase Database · checked Sep 28, 2026
13	BG Infotech LTD	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	14 contacts →
	Partial evidence “BGI is a highly reputed consulting business in the physical security industry.” Source: RevenueBase Database · checked Sep 28, 2026
14	Veritas International	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	12 contacts →
	Strong evidence “We are a dedicated risk management consultancy, committed to delivering bespoke security solutions that align perfectly with your unique needs.” Source: RevenueBase Database · checked Sep 28, 2026
15	ISSEE	Strong evidence	Bloxham, United KingdomHQ checked Sep 28, 2026	11-50	10 contacts →
	Strong evidence “The world's first academically-accredited organisation for Counter-Terrorism, Explosives & Security Consultancy and Munitions Management services.” Source: RevenueBase Database · checked Sep 28, 2026
16	SGW Consulting Group	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
17	Toren Consulting LTD	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	8 contacts →
	Partial evidence “Security gets designed into buildings at RIBA 2-3.” Source: RevenueBase Database · checked Sep 28, 2026
18	Iconal Technology LTD	Strong evidence	Cambridge, United KingdomHQ checked Sep 28, 2026	1-10	8 contacts →
	Strong 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
19	Blue Nine	Partial evidence	Salisbury, United KingdomHQ checked Sep 28, 2026	11-50	7 contacts →
	Partial evidence “Established in 2006, Blue Nine is a trusted security solutions provider, serving government entities, commercial organisations, and private clients.” Source: RevenueBase Database · checked Sep 28, 2026
20	Stone Bailey LTD	Indirect evidence	Chalgrove, United KingdomHQ checked Sep 28, 2026	51-200	6 contacts →
	Indirect evidence “Stone Bailey are an innovative company with a range of staff with specialist knowledge and skills.” Source: RevenueBase Database · checked Sep 28, 2026
21	Trident Manor Limited	Strong evidence	Darlington, United KingdomHQ checked Sep 28, 2026	1-10	6 contacts →
	Strong evidence “Trident Manor is a security, risk and crisis management consultancy providing services to national and international clients across a wide range of disciplines.” Source: RevenueBase Database · checked Sep 28, 2026
22	Rittel Consulting Limited	Strong evidence	Cambridge, United KingdomHQ checked Sep 28, 2026	1-10	6 contacts →
	Strong evidence “Rittel Consulting Limited is a security, safety, and risk management consultancy based in Cambridgeshire, UK.” Source: RevenueBase Database · checked Sep 28, 2026
23	JMS Risk Solutions	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	4 contacts →
	Partial evidence “JMS Risk Solutions is a specialised international consultancy dedicated to protecting complex organisations and their most critical assets, including people, property…” Source: RevenueBase Database · checked Sep 28, 2026
24	Dtvr Security Solutions	Partial evidence	Coleraine, United KingdomHQ checked Sep 28, 2026	1-10	4 contacts →
	Partial evidence “Our team combine real world operational experience in security and risk management with science, technology and innovation to understand, prepare for, and respond to terrorism…” Source: RevenueBase Database · checked Sep 28, 2026
25	The Savant Training Academy	Strong evidence	Newcastle Upon Tyne, United KingdomHQ checked Sep 28, 2026	1-10	4 contacts →
	Strong evidence “Savant’s Training Team has unsurpassed verifiable experience in providing cross-spectrum training, risk consultancy and security to high-value clients, including; Ministers…” 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: homeland security 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 homeland security consultants.
Partial evidence: Its own public description names part of homeland security consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name homeland security 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 175 homeland security consultants based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 206 reachable decision-makers.

Free signup · no credit card

View the full list →

Homeland security consultants based in the United Kingdom at a glance

As of Sep 28, 2026

18.0%Verified-email coverage

6.5Average contacts per company

1-10Median size (employees)

34.3%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

123

11-50

51-200

201-500

501-1,000

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 175 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 homeland security 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 “homeland security 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 homeland security 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 homeland security 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, 206 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.

Homeland security consultants by metro

Homeland security consultants in London60

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 homeland security 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 homeland security consultants are there based in the United Kingdom?

RevenueBase identified 175 homeland security 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?

SF Group, headquartered in Nottingham, tops this list with the largest team on record.

Which city has the most homeland security consultants?

London leads with 60 headquartered companies, followed by Reading (4) and Bristol (3).

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 206 verified decision-maker contacts tracked across these 175 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.

Ready to reach these companies? Verified emails and direct dials for all 175 homeland security consultants based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Homeland security consultants by geography

Browse the directory

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.