The UK IT & Security Software Market (2026)

63 it & security software companies have recorded headquarters in United Kingdom in this directory, led by Intruder (0.05% of recorded software spend). Rankings use trailing-12-month software spend share in the Cledara dataset. Unranked recorded vendors remain included. Data as of 26 October 2026, 22:03 UTC.

What this ranking measures

Location is the recorded headquarters, which may differ from where a company was founded or where its customers operate. Vendors are ordered by trailing-12-month software spend share in the Cledara dataset. Recorded products without a current paid observation remain in the directory; inclusion alone does not establish current paid usage.

Annual rank changes use the separate global popularity rank, based on payment activity. Missing calendar endpoints stay unavailable. Founding year, employee and funding fields are recorded enrichment facts, which can be incomplete or historical. Full source data is available from the CSV and JSON download links.

The headline and leader facts describe the complete published location. Search and category selections apply to the directory and its downloads.

UK it & security software companies ranked by software spend

Vendors with recorded headquarters in this location, ordered by software spend share; annual changes use the separate global payment-activity rank.
#	Product	Category	Founded	Employees	Funding	12-mo activity rank change
1	Intruder Intruder is a platform that offers continuous vulnerability management and attack surface monitoring, making it easy for companies to secure their systems. The product helps businesses address the problem of ensuring the security of their IT infrastructure and web applications.	IT & Security	2015	51-200 employees	Under $1M	-70
2	PortSwigger PortSwigger products help to secure the web and speed up software delivery.	IT & Security	2008	51-200 employees		+20
3	CyberSmart CyberSmart is a cybersecurity platform offering Active Protect‚Äîan endpoint monitoring and management solution with 24/7 vulnerability scanning, IT policy enforcement, and cybersecurity awareness training. It supports multiple devices and operating systems, promotes compliance with cybersecurity standards, and simplifies certifications.	IT & Security	2016	51-200 employees	$10M - $25M	-357
4	RealVNC RealVNC is a provider of remote access solutions including RealVNC Connect for secure, reliable access to desktop and mobile devices, and RealONE, a tool integrating remote management and monitoring capabilities for IT systems.	IT & Security	2002	51-200 employees		+224
5	Approov Approov is a mobile security platform that ensures only authorized mobile apps, running on unaltered devices, can access APIs and their cloud-based backend services. It uses runtime application self-protection (RASP) and a challenge-response mechanism to authenticate app integrity, without relying on embedded secrets in the app. This approach aims to protect against a variety of threats, including	IT & Security	2001	11-50 employees	$5M - $10M	+311
6	StatusCake StatusCake is a platform that provides uptime monitoring, page speed monitoring, and more. The product offers a suite of monitoring tools that help businesses stay online, drive revenue, and stay ahead of the competition.	IT & Security	2012	2-10 employees		+39
7	Cloud 66 Cloud 66 provides ops tools for developers to build, deliver, deploy, and manage any applications on any cloud or server.	IT & Security	2011	11-50 employees	$1M - $5M	+1
8	Bespin Labs Bespin Labs offers Google Workspace management solutions, enhancing user lifecycle management and data administration for organizations.	IT & Security	2010	51-200 employees		+466
9	ScreenCloud Screencloud is a digital signage software platform that allows users to effortlessly create, manage, and display content on any screen using hardware, an internet connection, and a ScreenCloud account.	IT & Security	2015	51-200 employees		+485
10	Yoti Yoti is a platform that allows individuals to securely share personal information with businesses and organizations.	IT & Security	2014	201-500 employees	$25M - $50M	+395
11	RotaCloud RotaCloud is software for managing staff schedules, attendance, and HR processes. It enables organizations to plan shifts, manage time off, and handle administrative tasks through a cloud-based platform. The tool is designed for various industries and includes features to streamline scheduling, automate timesheets, and provide HR management functionalities.	IT & Security	2013	51-200 employees		-205
12	TTNC TTNC provides cloud-based telecommunications services including virtual phone numbers, VoIP, SMS, call tracking, fax, and an online control panel (“myTTNC”) for managing those services. Their platform allows businesses to buy, configure, and manage voice, SMS, and number routing services via web interfaces.	IT & Security	2004	11-50 employees		+1353
13	Zadarma Zadarma is a telecommunications service that provides VoIP, virtual phone numbers across various countries, and PBX systems through a cloud-based platform. The service allows for the setup of a phone system without the necessity of physical lines or hardware, featuring functionalities such as call forwarding, interactive voice response (IVR), and call recording. It also includes CRM system integra	IT & Security	2006	51-200 employees		-40
14	Academia Academia is a platform offering IT solutions and services tailored for the education, public, and business sectors. Their platform includes tools for managing software subscriptions, infrastructure, cloud services, and cybersecurity.	IT & Security	2003	51-200 employees
15	Air Landline	IT & Security		2-10 employees
16	AppCheck NG AppCheck provides a cloud-based vulnerability scanning platform that identifies security vulnerabilities across websites, applications, networks, and cloud infrastructure. The platform performs automated scans to detect security risks and help organizations monitor and manage system vulnerabilities.	IT & Security		51-200 employees
17	Babble Babble Cloud provides cloud communications and IT services for businesses. The company offers products and services related to voice communications, connectivity, and managed technology services.	IT & Security	2001	201-500 employees	$5M - $10M
18	Cable Monkey	IT & Security
19	CCleaner CCleaner is a utility platform designed for Windows, macOS, and Android operating systems. Developed by Piriform, it serves the purpose of cleaning and optimizing the computer's operating system and applications. The platform achieves this by removing temporary files, unused files, and other unnecessary data, potentially leading to the freeing up of storage space and improvements in system perform	IT & Security	2004	Self-employed
20	CloudM CloudM is a software company offering solutions for data migration, backup, automation, and archiving for Google Workspace and Microsoft 365. Their main product comprises tools to migrate, backup, automate, and archive data across these platforms.	IT & Security	2008	201-500 employees
21	ColdProxy	IT & Security	2018	2-10 employees
22	CultureAI CultureAI is a Risk Management Platform . The platform is designed to help organisations take a data-driven approach to human risk management that sees employees preventing security incidents rather than creating them. CultureAI's cyber security awareness platform can be used to surface employee security behaviour data and use it to drive personalised security coaching, technical interventions and	IT & Security	2015	11-50 employees	$10M - $25M
23	Cyber Vigilance	IT & Security	2018	11-50 employees
24	DataPlicitiy DataPlcitiy provides a service for remotely accessing and managing Raspberry Pi devices over the internet.	IT & Security	2008	51-200 employees
25	Defense.com Defense.com is an XDR (Extended Detection and Response) platform that offers comprehensive cyber threat detection and response capabilities across the entire network.	IT & Security	2023	51-200 employees
26	Doordeck Doordeck is an access control aggregator. As a SaaS solution Doordeck enables NFC keyless entry for any access control system.	IT & Security	2015	2-10 employees
27	Egress Egress is a software company providing an Intelligent Email Security Suite, which includes products like Egress Defend, Egress Prevent, and Egress Protect. These tools are designed to protect against phishing attacks, prevent email breaches, and secure encrypted emails.	IT & Security	2007	201-500 employees	$25M - $50M
28	Europe Registry	IT & Security
29	Fixed.net Fixed.net is a WordPress and WooCommerce maintenance agency operating globally from offices in London, Sofia, and Bali. They offer ad-hoc website fixes as well as ongoing hosting, support, security updates, backups, and performance audits.	IT & Security	2018	11-50 employees
30	Hack The Box Hack The Box is a cloud-based platform offering over 1,200 hands-on cybersecurity labs and training scenarios for corporate teams to enhance skills in offensive and defensive security.	IT & Security	2017	201-500 employees	$50M - $100M
31	IPXO	IT & Security	2021	51-200 employees	$1M - $5M
32	Jigsaw24	IT & Security	1992	201-500 employees
33	Krystal	IT & Security	2002	51-200 employees
34	Lycamobile	IT & Security		5,001-10,000 employees
35	mSpy mSpy is a monitoring application that enables users to track activities on smartphones and computers. It allows monitoring of calls, text messages, social media interactions, GPS locations, and more, operating discreetly on the target device.	IT & Security	2003	51-200 employees
36	NetNerd	IT & Security	2018	11-50 employees
37	Onfido Onfido provides a digital identity verification solution that helps businesses confirm the identities of their customers online. It uses artificial intelligence to automate the verification process, which includes document and biometric checks, ensuring compliance with global regulations such as KYC and AML. The platform aims to enhance customer onboarding, reduce fraud, and simplify regulatory co	IT & Security	2012	501-1,000 employees	$100M - $250M
38	OnSecurity OnSecurity is a product that offers specialized and comprehensive penetration testing solutions.	IT & Security	2018	51-200 employees	$5M - $10M
39	OSINT Industries OSINT Industries provides a platform that supports open-source intelligence by enabling searches through over 200 websites using email or phone information. It aims to assist sectors like enterprise, government, journalism, and non-profits with investigative capabilities. The platform focuses on trust, safety, and compliance with privacy policies.	IT & Security	2023	11-50 employees
40	Ping Technology Labs	IT & Security	2020	2-10 employees
41	Plusnet	IT & Security	1997	1,001-5,000 employees
42	Press Loft Press Loft is a PR-focused platform that hosts digital press offices featuring high-resolution images, releases, and trend content. Brands upload media and press materials, making them instantly accessible to a curated network of journalists, bloggers, and influencers. The platform streamlines media outreach, facilitates collaborations, automates press coverage workflows, powers influencer engagem	IT & Security	2006	11-50 employees
43	Primed Proxies	IT & Security	2020	2-10 employees
44	Prism Infosec PrismInfosec is a platform that provides cybersecurity services and solutions, including penetration testing, cybersecurity consulting, compliance assessment, and training programs. It aims to help organizations identify vulnerabilities within their IT infrastructure, applications, and processes by conducting assessments and simulations of cyber attacks. The platform offers strategic advice, pract	IT & Security	2006	51-200 employees
45	PrivateProxy	IT & Security	2017	11-50 employees
46	Qloaked	IT & Security
47	Quackr.io Quackr.io is a platform that enables users to access temporary phone numbers for receiving SMS messages. The platform provides phone numbers from various countries, which users can use to receive SMS messages through the website. This functionality allows for SMS verification processes that do not require the use of personal phone numbers.	IT & Security	2019	2-10 employees
48	Quatrix Quatrix is a managed cloud file transfer solution that automates secure file sharing, supports files of any size, and ensures compliance with GDPR and HIPAA.	IT & Security	2006	501-1,000 employees
49	Red Sift Red Sift is a cloud-based solution for configuring and managing DMARC, DKIM, and SPF protocols to protect against phishing and business email compromise (BEC) attacks. It includes built-in tools for email analysis, dynamic protocol management, and MTA-STS, ensuring effective email security and reputation management.	IT & Security	2015	51-200 employees
50	Regery	IT & Security		11-50 employees
51	RoboShadow RoboShadow is an automated cybersecurity platform that provides continuous vulnerability assessment and threat remediation across an organization's attack surface. It combines internal and external network scanning, website OWASP testing, and Microsoft 365 security auditing with automated patch management ("Cyber Heal") to fix vulnerabilities and maintain compliance.	IT & Security	2017	11-50 employees
52	Server Density Server Density provides cloud-based infrastructure monitoring and server monitoring solutions to help businesses monitor their IT infrastructure, servers, and applications in real-time.	IT & Security	2009	11-50 employees	$1M - $5M
53	Setyl Setyl is a cloud-based IT management platform that centralizes asset tracking, license management, and compliance monitoring, integrating with existing systems and supporting unlimited assets.	IT & Security	2020	11-50 employees
54	SOAX	IT & Security	2019	51-200 employees
55	Soho66 Soho66 is a cloud-based business phone system provider offering virtual landlines, mobile and fax numbers, and a range of call management features.	IT & Security	2007	11-50 employees
56	Sophos Sophos is a provider of comprehensive endpoint security solutions, including malware detection, exploit protection, and response capabilities (EDR, XDR). The products are managed via a single dashboard in Sophos Central and aim to secure endpoints, servers, and mobile devices across various operating systems.	IT & Security	1985	5,001-10,000 employees	$50M - $100M
57	Symprex Symprex is a platform that centralises the management of email signatures, disclaimers, mailbox permissions, and automatic replies across Microsoft 365, Office 365, and Exchange environments.	IT & Security	1999	11-50 employees
58	Total AV TotalAV is an antivirus program offering malware detection and a range of security features. It offers real-time malware detection, web security features, and various data privacy protections. TotalAV provides protection against malicious programs and other online threats, working to ensure the safety of users and their families, especially during activities like online shopping, thereby safeguard	IT & Security	2016	51-200 employees	$1M - $5M
59	Trusted Proxies	IT & Security	2010	2-10 employees
60	Usecure Usecure is a platform that helps organizations manage and improve employee cybersecurity awareness. Using automation, it measures, boosts, and monitors cyber awareness levels with minimal administrative effort. The platform focuses on addressing human-related cybersecurity risks, offering targeted training and continuous monitoring to create a security-aware workplace culture	IT & Security	2016	11-50 employees
61	Virtual Landline Virtual Landline is a service offering virtual phone numbers and VoIP solutions, allowing users to make and receive calls through desktop and mobile apps or VoIP handsets.	IT & Security	1996	11-50 employees
62	Virtually There Virtually There is a platform that offers virtual office services, including business addresses and mail handling, as well as call answering solutions such as virtual receptionists and personal assistants.	IT & Security	2011	11-50 employees
63	VoIPcloud Wholesale	IT & Security	2008	11-50 employees

IT & Security Software subcategories in United Kingdom

Other companies in United Kingdom

Intruder — Intruder is a platform that offers continuous vulnerability management and attack surface monitoring, making it easy for…
PortSwigger — PortSwigger products help to secure the web and speed up software delivery.
TTNC — TTNC provides cloud-based telecommunications services including virtual phone numbers, VoIP, SMS, call tracking, fax, an…
Zadarma — Zadarma is a telecommunications service that provides VoIP, virtual phone numbers across various countries, and PBX syst…
Air Landline
AppCheck NG — AppCheck provides a cloud-based vulnerability scanning platform that identifies security vulnerabilities across websites…
Cable Monkey
CCleaner — CCleaner is a utility platform designed for Windows, macOS, and Android operating systems. Developed by Piriform, it ser…
CloudM — CloudM is a software company offering solutions for data migration, backup, automation, and archiving for Google Workspa…
CultureAI — CultureAI is a Risk Management Platform . The platform is designed to help organisations take a data-driven approach to …
Cyber Vigilance
Europe Registry
Fixed.net — Fixed.net is a WordPress and WooCommerce maintenance agency operating globally from offices in London, Sofia, and Bali. …
Hack The Box — Hack The Box is a cloud-based platform offering over 1,200 hands-on cybersecurity labs and training scenarios for corpor…
Jigsaw24
Krystal
NetNerd
OSINT Industries — OSINT Industries provides a platform that supports open-source intelligence by enabling searches through over 200 websit…
Prism Infosec — PrismInfosec is a platform that provides cybersecurity services and solutions, including penetration testing, cybersecur…
Quatrix — Quatrix is a managed cloud file transfer solution that automates secure file sharing, supports files of any size, and en…
Red Sift — Red Sift is a cloud-based solution for configuring and managing DMARC, DKIM, and SPF protocols to protect against phishi…
Regery
RoboShadow — RoboShadow is an automated cybersecurity platform that provides continuous vulnerability assessment and threat remediati…
Setyl — Setyl is a cloud-based IT management platform that centralizes asset tracking, license management, and compliance monito…
Soho66 — Soho66 is a cloud-based business phone system provider offering virtual landlines, mobile and fax numbers, and a range o…
Symprex — Symprex is a platform that centralises the management of email signatures, disclaimers, mailbox permissions, and automat…
Usecure — Usecure is a platform that helps organizations manage and improve employee cybersecurity awareness. Using automation, it…

Security companies in United Kingdom

CyberSmart — CyberSmart is a cybersecurity platform offering Active Protect‚Äîan endpoint monitoring and management solution with 24/…
OnSecurity — OnSecurity is a product that offers specialized and comprehensive penetration testing solutions.

Device Management (MDM) companies in United Kingdom

RealVNC — RealVNC is a provider of remote access solutions including RealVNC Connect for secure, reliable access to desktop and mo…
DataPlicitiy — DataPlcitiy provides a service for remotely accessing and managing Raspberry Pi devices over the internet.

Identity & Access (IAM) companies in United Kingdom

Approov — Approov is a mobile security platform that ensures only authorized mobile apps, running on unaltered devices, can access…
Bespin Labs — Bespin Labs offers Google Workspace management solutions, enhancing user lifecycle management and data administration fo…
Yoti — Yoti is a platform that allows individuals to securely share personal information with businesses and organizations.
Doordeck — Doordeck is an access control aggregator. As a SaaS solution Doordeck enables NFC keyless entry for any access control s…
Onfido — Onfido provides a digital identity verification solution that helps businesses confirm the identities of their customers…
Quackr.io — Quackr.io is a platform that enables users to access temporary phone numbers for receiving SMS messages. The platform pr…

Infrastructure companies in United Kingdom

StatusCake — StatusCake is a platform that provides uptime monitoring, page speed monitoring, and more. The product offers a suite of…
Cloud 66 — Cloud 66 provides ops tools for developers to build, deliver, deploy, and manage any applications on any cloud or server…
ScreenCloud — Screencloud is a digital signage software platform that allows users to effortlessly create, manage, and display content…
RotaCloud — RotaCloud is software for managing staff schedules, attendance, and HR processes. It enables organizations to plan shift…
Press Loft — Press Loft is a PR-focused platform that hosts digital press offices featuring high-resolution images, releases, and tre…
Server Density — Server Density provides cloud-based infrastructure monitoring and server monitoring solutions to help businesses monitor…
Virtual Landline — Virtual Landline is a service offering virtual phone numbers and VoIP solutions, allowing users to make and receive call…
Virtually There — Virtually There is a platform that offers virtual office services, including business addresses and mail handling, as we…

Cloud Security (CSPM) companies in United Kingdom

Academia — Academia is a platform offering IT solutions and services tailored for the education, public, and business sectors. Thei…
Qloaked

Network & VPN companies in United Kingdom

Babble — Babble Cloud provides cloud communications and IT services for businesses. The company offers products and services rela…
ColdProxy
IPXO
Lycamobile
Ping Technology Labs
Plusnet
Primed Proxies
PrivateProxy
SOAX
Trusted Proxies
VoIPcloud Wholesale

SIEM & Threat Detection companies in United Kingdom

Defense.com — Defense.com is an XDR (Extended Detection and Response) platform that offers comprehensive cyber threat detection and re…
Egress — Egress is a software company providing an Intelligent Email Security Suite, which includes products like Egress Defend, …

Endpoint Security companies in United Kingdom

mSpy — mSpy is a monitoring application that enables users to track activities on smartphones and computers. It allows monitor…
Sophos — Sophos is a provider of comprehensive endpoint security solutions, including malware detection, exploit protection, and …
Total AV — TotalAV is an antivirus program offering malware detection and a range of security features. It offers real-time malware…

Rising UK it & security software companies

Bespin Labs and ScreenCloud show the strongest payment-activity rank gains over the three-calendar-month comparison.

How United Kingdom compares globally

the United Kingdom accounts for 8.4% of the it & security software products tracked globally on Cledara (63 of 754).

The top UK product, Intruder, ranks #28 by recorded software spend in the global category dataset.

Frequently asked questions

Which UK it & security software vendors lead the spend ranking?

Intruder, PortSwigger and CyberSmart lead the UK it & security software market in 2026, ordered by recorded software spend share in the Cledara dataset. Last updated 26 October 2026, 22:03 UTC.

How big is the UK it & security software market?

This directory records 63 it & security software products headquartered in United Kingdom, led by Intruder in recorded software spend share. Inclusion does not establish current paid usage. This is a dataset count, not a market-size or revenue estimate.

Which UK it & security software vendors gained payment-activity rank?

Bespin Labs and ScreenCloud show the strongest global payment-activity rank gains over three calendar months among vendors in this headquarters/category group.

Where does this data come from?

From anonymized, aggregated purchasing data across companies that manage their software with Cledara — real payments, not surveys or web traffic. Updated monthly.