Company lists · Data refreshed September 2026

Top 25 Integrated security software vendors based in the United Kingdom

Name: Integrated security software vendors 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 103 companies tracked

RevenueBase identified 103 integrated security software vendors headquartered in the United Kingdom as of September 2026 and tracks 1,149 professional contacts across them, including 438 with verified work emails. London is the largest hub.

This list covers integrated security software vendors 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

103Companies

1,149Contacts tracked

438Verified emails

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The 25 largest integrated security software vendors based in the United Kingdom

Ranked by team size

Top 25 of 103 integrated security software vendors 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 integrated security software vendors: 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	Frontline Security Solutions	Strong evidence	Chalfont St Peter, United KingdomHQ checked Sep 28, 2026	51-200	145 contacts →
	Strong evidence “Frontline Security Solutions is a global electronic security integrator specialising in Access Control, CCTV, Intruder and Intercom systems that protect people, property and…” Source: RevenueBase Database · checked Sep 28, 2026
2	Total Security Protection LTD	Strong evidence	Watford, United KingdomHQ checked Sep 28, 2026	51-200	116 contacts →
	Strong evidence “TSP has a reputation for providing enterprise security solutions, as well as excellent system integration standards and exceptional aftercare support, since its founding in 1988.” Source: RevenueBase Database · checked Sep 28, 2026
3	Gratte Brothers Security Systems & Software	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	39 contacts →
	Strong evidence “Gratte Brothers is an experienced provider of integrated security solutions, which are Built on Strong Values and ultimately deliver a measurable return on investment.” Source: RevenueBase Database · checked Sep 28, 2026
4	Pafi LTD	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	32 contacts →
	Strong evidence “Pafi Ltd, Was formed in 1995 to design, install and maintain integrated security solutions for the commercial market.” Source: RevenueBase Database · checked Sep 28, 2026
5	VIS Security Solutions Limited	Partial evidence	Belfast, United KingdomHQ checked Sep 28, 2026	51-200	30 contacts →
	Partial evidence “WELCOME TO VIS SECURITY SOLUTIONS LIMITED Headquartered in the UK and Ireland, ViS specialises in providing bespoke physical security solutions by converging multiple advanced…” Source: RevenueBase Database · checked Sep 28, 2026
6	Cortech Developments	Strong evidence	Knutsford, United KingdomHQ checked Sep 28, 2026	11-50	30 contacts →
	Strong evidence “Established in 1992, Cortech Developments is a successful UK based company who specialise in software integration solutions for smarter building, fire, safety and security systems.” Source: RevenueBase Database · checked Sep 28, 2026
7	Guide Security	Partial evidence	Darwen, United KingdomHQ checked Sep 28, 2026	51-200	30 contacts →
	Partial evidence “Many security companies pull together different providers to deliver a single service.” Source: RevenueBase Database · checked Sep 28, 2026
8	Inner Range Emea	Strong evidence	Reading, United KingdomHQ checked Sep 28, 2026	51-200	28 contacts →
	Strong evidence “Inner Range is a manufacturer of integrated Video, Access Control and Security solutions.” Source: RevenueBase Database · checked Sep 28, 2026
9	4secure LTD	Partial evidence	Northampton, United KingdomHQ checked Sep 28, 2026	11-50	23 contacts →
	Partial evidence “4Secure is a trusted provider of software defined, cross-network/cross-domain cybersecurity solutions for commercial, government and defence.” Source: RevenueBase Database · checked Sep 28, 2026
10	Marineguard Systems Limited	Strong evidence	Southampton, United KingdomHQ checked Sep 28, 2026	11-50	23 contacts →
	Strong evidence “MarineGuard is recognised as the industry leader for the integration of leading edge technology-based superyacht security.” Source: RevenueBase Database · checked Sep 28, 2026
11	Acctive Systems LTD	Strong evidence	Edenbridge, United KingdomHQ checked Sep 28, 2026	11-50	22 contacts →
	Strong evidence “Acctive Systems Ltd are one of the UK’s leading privately owned integrators of electronic security systems.” Source: RevenueBase Database · checked Sep 28, 2026
12	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
13	Webeye Limited	Partial evidence	Mansfield, United KingdomHQ checked Sep 28, 2026	11-50	16 contacts →
	Partial evidence “Webeye Limited, alongside Webeye Corp in the USA, is a leading provider of advanced security solutions for the professional security industry.” Source: RevenueBase Database · checked Sep 28, 2026
14	Nexus Security Solutions Limited	Strong evidence	Amersham, United KingdomHQ checked Sep 28, 2026	11-50	15 contacts →
	Strong evidence “Nexus Security Solutions are an electronic security integrator providing the design, supply, installation and maintenance of integrated electronic security systems throughout the…” Source: RevenueBase Database · checked Sep 28, 2026
15	ISM LTD	Strong evidence	Crawley, United KingdomHQ checked Sep 28, 2026	11-50	15 contacts →
	Strong evidence “ISM is a Solutions Business with more than 30 years world leading experience in the manufacturing and inventing of integrated security management solutions, encompassing alarm…” Source: RevenueBase Database · checked Sep 28, 2026
16	CDS Integrated Security Systems	Strong evidence	Pontypridd, United KingdomHQ checked Sep 28, 2026	11-50	13 contacts →
	Strong evidence “At CDS we provide integrated security solutions.” Source: RevenueBase Database · checked Sep 28, 2026
17	Cyber EYE Security Limited	Strong evidence	Dartford, United KingdomHQ checked Sep 28, 2026	11-50	13 contacts →
	Strong evidence “Cyber Eye Security Limited is a leading security systems integrator, supporting customers across UK and Europe.” Source: RevenueBase Database · checked Sep 28, 2026
18	Bold Communications LTD	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	12 contacts →
	Strong evidence “Bold Communications develops Gemini, an integrated security and safety monitoring platform to maximise efficiency and interoperability in the control room, utilising legacy as…” Source: RevenueBase Database · checked Sep 28, 2026
19	OLS Oliver LAW Security LTD	Partial evidence	Doncaster, United KingdomHQ checked Sep 28, 2026	11-50	11 contacts →
	Partial evidence “OLS are a UK based company specialising in transitioning customers to cloud based security solutions.” Source: RevenueBase Database · checked Sep 28, 2026
20	Securigroup Systems	Strong evidence	Glasgow, United KingdomHQ checked Sep 28, 2026	1,001-5,000	11 contacts →
	Strong evidence “With expertise in both systems and security services, SecuriGroup Systems can provide fully integrated system recommendations based on a full appreciation of all site operations…” Source: RevenueBase Database · checked Sep 28, 2026
21	Pinnacle Systems	Strong evidence	Alderley Edge, United KingdomHQ checked Sep 28, 2026	11-50	10 contacts →
	Strong evidence “Pinnacle is a CPIM (Centralised Plaform for Integration & Monitoring)- a vendor-agnostic integration platform designed to centralise and unify security and other building…” Source: RevenueBase Database · checked Sep 28, 2026
22	Netaccess LTD	Indirect evidence	Flitton, United KingdomHQ checked Sep 28, 2026	11-50	8 contacts →
	Indirect evidence “Design Philosophy The netaccess core design philosophy has always been to develop systems that support customer processes, ensure our products work for the user and reduce, as far…” Source: RevenueBase Database · checked Sep 28, 2026
23	Advancis Software & Services LTD	Partial evidence	Batley, United KingdomHQ checked Sep 28, 2026	1-10	8 contacts →
	Partial evidence “Advancis has been successfully active on the market as an independent software house for over 25 years.” Source: RevenueBase Database · checked Sep 28, 2026
24	MYDIS	Strong evidence	Redditch, United KingdomHQ checked Sep 28, 2026	11-50	8 contacts →
	Strong evidence “MYDIS is a UK-based security and software firm reimagining how physical and digital systems work together to protect, optimise, and empower high-risk environments.” Source: RevenueBase Database · checked Sep 28, 2026
25	DJ Byers Engineered Security LTD	Partial evidence	Castleford, United KingdomHQ checked Sep 28, 2026	11-50	7 contacts →
	Partial evidence “Engineered Security.” 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: integrated security software vendors. 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 integrated security software vendors.
Partial evidence: Its own public description names part of integrated security software vendors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name integrated security software vendors. 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 integrated security software vendors based in the United Kingdom

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Integrated security software vendors based in the United Kingdom at a glance

As of Sep 28, 2026

38.1%Verified-email coverage

11.2Average contacts per company

11-50Median size (employees)

18.4%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 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 integrated security software vendors, 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 “integrated security software vendors”. 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 integrated security software vendors), 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 integrated security software vendors, 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, 438 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 integrated security software vendors, 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 integrated security software vendors are there based in the United Kingdom?

RevenueBase identified 103 integrated security software vendors 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?

Frontline Security Solutions, headquartered in Chalfont St Peter, tops this list with the largest team on record.

Which city has the most integrated security software vendors?

London leads with 19 headquartered companies, followed by Belfast (4) and Bracknell (2).

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 438 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.