Top 11 Cybersecurity Providers in the United Kingdom (2026)

Organizations in the United Kingdom confront sophisticated cyber threats and shifting regulatory requirements, making vendor choice a high-stakes procurement decision. Buyers should compare threat detection and incident response capabilities, cloud and endpoint protections, identity and access controls, managed detection and response and SOC coverage, compliance certifications and testing services, and contract terms like SLAs and pricing.

SoftPro serves buyers across the United Kingdom as an international partner and appears first as the featured partner for this roundup.

Quick comparison of UK cybersecurity providers

1. SoftPro

As the featured international partner listed first in our Top 11 Cybersecurity Providers in the United Kingdom, SoftPro is recommended for UK organisations that require secure web applications, cloud migration, progressive web app implementations, and enterprise CMS modernization. The company serves clients across the UK and EU from a Warsaw-based team and maintains English-language materials and case studies to support cross-border projects.

SoftPro’s site documents core strengths that align with cybersecurity-aware engineering: the team builds secure, responsive progressive web apps and conducts cloud migrations while integrating AI into business systems. Their technical pages cite ASP.NET Core, .NET, C#, React, Node.js, and both Microsoft Azure and AWS, and the site notes experience with LLM integration.

Key Highlights

• More than 20 years of combined team experience documented on the company homepage.

• Multiple named case studies listed on the site, including Business Portal, CRM/HRM, Platform SAAS ETL, Support System, and a Social Network for product promotion.

• Cloud migration practice explicitly includes lift-and-shift, containerization, and transforming legacy enterprise architectures to cloud-native deployments.

• The FAQ and services pages state that SoftPro provides continuous post-delivery support and maintenance for developed software.

Services

• Custom Software Development

• Web Application Development

• Cloud Development

• Artificial Intelligence

Contact Information

Website: soft-pro.pl

Phone: +48 571 282 759

Address: Poland, Warsaw, Mazowieckie Voivodeship, 13 Erasmus Ciołka St. 401

LinkedIn: www.linkedin.com/company/soft-pro-pl

2. Mimecast

Mimecast is a London-headquartered cybersecurity company that secures email and collaboration with a cloud-native, AI-powered platform. Its product lineup includes Advanced Email Security, DMARC Analyzer, Incydr for insider-risk and data protection, Email Archive, and Email Continuity for Microsoft 365 and Google Workspace.

Buyers evaluating Mimecast for UK enterprise email security should review the Advanced Email Security pages that describe multi-layer AI detection and deployment flexibility, run the free SPF/DKIM/DMARC checkers in DMARC Analyzer to validate domain posture, and request a 30-day Proof of Value for Incydr to test insider-risk detection in their environment.

Key Highlights

• DMARC Analyzer includes free SPF, DKIM, BIMI and DMARC checkers, a DMARC record setup wizard, and an active monitoring console for faster enforcement.
• Incydr lists a 30-day Proof of Value to trial insider-risk detection and shows a Gartner Peer Insights rating on its product pages.
• Mimecast documents an Email Incident Response / Managed Threat Response capability that investigators operate 24×7 to investigate and remediate reported email threats.

Services

• Advanced Email Security
• DMARC Analyzer
• Incydr
• Email Archive

Contact Information

Website: www.mimecast.com

Phone: +44 (0)20 7847 8700

Address: 1 Finsbury Avenue, London EC2M 2PF, United Kingdom

Email: info@mimecast.com

Email: press@mimecast.com

Email: ecosystem@mimecast.com

LinkedIn: linkedin.com/company/mimecast

3. BT (BT Security)

BT delivers network and managed cybersecurity services for UK and global customers from its BT Business and BT Global Services divisions. The company’s official site documents managed cloud security, Managed SASE (SD‑WAN + SSE), SIEM, EDR and XDR offerings and lists vendor integrations with Zscaler, Cisco, Palo Alto and McAfee. BT also states it monitors and manages customer and BT devices from 16 accredited global security operations centres and reports protection against more than 125,000 cyber attacks every month.

Buyers evaluating BT for cybersecurity can rely on the vendor pages, technical solution briefs and case studies published on BT’s business and global services sites to verify capability. The site hosts managed service and solution descriptions for managed SIEM, managed cloud security and DDoS mitigation, and it includes customer case studies that buyers can review alongside partnership integrations to confirm technical fit and delivery model.

Key Highlights

• BT Broadband includes Cyber Threat Protect powered by Norton, with features like Scam Assistant and Dark Web Monitoring and protection for up to 15 devices.
• BT reports blocking over 4 million harmful or scam websites every day and blocked 73 million nuisance calls and 184 million scam SMS messages in the last year.
• BT’s managed cloud security pages state the company operates more data centres for cloud services than any other service provider.
• BT publishes formal Managed Security Service documentation, including a published Managed Security Schedule (contractual service schedule PDF) available on its site dated 31 October 2023.

Services

• Managed Security Controls
• Managed Cloud Security
• Managed SASE (SD‑WAN + SSE)
• SIEM & XDR

Contact Information

Website: www.bt.com

Phone (Business enquiries): 0800 800 152

Head office Address: BT Group plc, 1 Braham Street, London, E1 8EE

Helpdesk Phone: 0800 028 4027

Helpdesk Email: solutions.view@bt.com

4. PortSwigger

PortSwigger is a UK web security company based in Knutsford, Cheshire. The company develops Burp Suite, a toolkit for manual and automated web application vulnerability testing, and publishes the Web Security Academy, a free learning centre with interactive labs covering SQL injection, cross-site scripting, CSRF, NoSQL injection, API testing, and recent Web LLM attack labs.

Buyers evaluating web application security and vulnerability scanning should trial Burp Suite Community or Professional locally and validate automated coverage using Burp Suite Enterprise, which documents CI-driven scans, Docker-based scan containers, and API/GraphQL integrations for pipeline automation. Evaluation can also include hands-on validation via the Web Security Academy labs and testing community extensions from the BApp store to confirm detection coverage and workflow fit.

Key Highlights

• The BApp store hosts over 200 community-developed Burp extensions.
• The Web Security Academy reached a one million user milestone within a year of launch.
• Burp Suite is distributed as installers for Windows, Linux, and macOS and as a JAR, with published SHA-256 checksums for downloads.
• Burp Suite Enterprise provides CI/CD support including Jenkins and TeamCity plugins, a generic CI driver, and Docker-based CI-driven scan options.

Services

• Burp Suite Professional
• Burp Suite Enterprise
• Web Security Academy

Contact Information

Website: portswigger.net

Technical support: support@portswigger.net

Sales and customer support: hello@portswigger.net

Address: 6 Booths Park, Chelford Road, Knutsford, WA16 8ZS

LinkedIn: linkedin.com/company/portswigger

5. Panaseer

Panaseer operates a Continuous Controls Monitoring (CCM) platform that gives enterprises an evidence-based, audit-quality view of cybersecurity controls and assets. The vendor publishes 250+ ready-to-use cyber metrics, maps those metrics to frameworks including PCI DSS, DORA, NIST CSF, CIS, and NYDFS, and uses agentless data connectors with RBAC, SSO, and MFA to combine security, IT, and business tool data into verified inventories and control scorecards.

Buyers evaluating Panaseer for cybersecurity posture and regulatory compliance should validate its connector coverage and automated framework mapping in the demo hub and product resources. Review Panaseer’s out-of-the-box dashboards, audit trails, the buyer’s guide to Continuous Controls Monitoring, and published case studies or briefs to confirm evidence-based reporting, asset discovery, and remediation workflow integrations.

Key Highlights

• Recognized by Gartner for its Continuous Controls Monitoring solution.
• Has taken total funding of $43 million from investors.
• Named a World Economic Forum 2023 Technology Pioneer.
• Product briefs show remediation and ITSM workflow integrations with tools including ServiceNow and Jira.

Services

• Panaseer AI
• Cyber Advisor
• IQ Suite
• Business Service Lens

Contact Information

Website: panaseer.com

Email: careers@panaseer.com

Address (UK): Panaseer Ltd, Ashcombe Court, Woolsack Way, Godalming, Surrey, GU7 1LQ, United Kingdom

Address (USA): Panaseer Inc, 167 Madison Avenue, Suite 205 #1021, New York, NY 10016, United States

6. Immersive Labs

Immersive Labs is a British cybersecurity company that runs the Immersive One cyber proving ground and delivers hands-on labs, cyber drills, crisis simulations, and agent assurance to test people, teams, and AI-enabled workflows under pressure. The company is headquartered in Bristol with a U.S. office in Boston and publishes public Try Labs such as “Prompt Injection Attacks” and “Introduction to Incident Response.”

Buyers can evaluate Immersive for UK-focused cyber resilience by trialing its Immersive One platform features and measured outputs. Look for the platform’s Resilience Score, MITRE ATT&CK framework alignment, Dynamic Threat Range and Agentic Evaluation Harness, plus up-to-date threat content from Container 7 and published platform release notes and Try Labs.

Key Highlights

• Ranked #1 in the Forrester Wave™ 2026.
• Reported $189 million raised in funding to date.
• Trusted by 30%+ of the Fortune 100.
• More than 400 global customers listed on the company site.

Services

• Resilience Pathways
• AI Hub
• Technical Exercising
• Benchmarking & Reporting

Contact Information

Website: www.immersivelabs.com

Phone (Sales UK): +44(0)345-646-1544

Phone (Sales US): 1-855-202-2423

Email (Sales): sales@immersivelabs.com

Email (Enquiries): enquiries@immersivelabs.com

Email (Careers): careers@immersivelabs.com

Address (Bristol HQ): The Programme, All Saints’ St, Bristol, UK, BS1 2LZ

Address (US HQ): 501 Boylston St, Floor 10, Boston, MA 02116, USA

7. Elliptic

Elliptic is a UK-registered blockchain analytics and crypto compliance company founded in 2013. Its platform delivers on-chain screening, transaction monitoring and AML investigations through named products including Lens, Discovery, Investigator and Ecosystem monitoring, and it reports intelligence across 65+ blockchains, bridges and tokens.

Buyers evaluating Elliptic for cybersecurity and crypto-compliance should trial the platform or book a demo, review the API documentation and the ROI Compliance efficiency calculator, and check service status and customer stories to verify uptime, investigative output and operational controls.

Key Highlights

• Covers 99% of global crypto trading volume according to Elliptic's dataset.
• Labels more than 1 billion crypto addresses in its proprietary intelligence.
• Reports 99.9% uptime for platform reliability.
• Publishes case work and training resources, including Spotlight “Operation Atlantic” which traces $45M+ in stolen crypto and course offerings such as an Agentic Compliance Certification.

Services

• Wallet & transaction screening
• Transaction monitoring & AML reporting
• Cross-chain forensic investigations
• Stablecoin issuer and exposure assessment

Contact Information

Website: www.elliptic.co

8. PQShield

PQShield builds post-quantum cryptography for hardware and software, delivering quantum-resistant libraries, SDKs, and chip-level components. The company’s product pages list PQMicroLib-Core as an ultra-small cryptographic library that runs in as little as 5KB RAM and PQCryptoLib-SDK as a plug-and-play SDK designed for OpenSSL applications.

Buyers evaluating PQShield for post-quantum readiness should review the product pages and request technical integration tests that measure SDK compatibility and embedded memory footprint. The site also documents PQPlatform-CoPro secure coprocessor and PQPerform hardware accelerators that buyers can use as technical criteria for compatibility and deployment.

Key Highlights

• PQShield reports active involvement in the international standardization of post-quantum algorithms and standards.
• The site lists CAVP and CMVP validation for PQCryptoLib-Core and PQMicroLib-Core, with certificate references shown for specific versions.
• PQShield operates a dedicated side-channel analysis (SCA) laboratory with fully automated, continuous SCA testing integrated into its IP development cycle.
• The homepage identifies priority markets including Military & Aerospace, Network & Telecommunications, and Semiconductors and Manufacturing.

Services

• Embedded post-quantum cryptography
• PQC SDKs for OpenSSL applications
• Secure coprocessor and root-of-trust systems
• High-performance PQC hardware acceleration

Contact Information

Website: pqshield.com

Address (PQShield Ltd, Oxford): Prama House, 267 Banbury Road, Oxford OX2 7HT

Address (PQShield SAS, Paris): WeWork Bercy, 8 Rue des Pirogues de Bercy, Paris 75012

Address (PQShield B.V., Amsterdam): Keizersgracht 62, 1015CS Amsterdam

Address (PQShield Inc., New York): 228 East 45th Street, Suite 9E, New York, NY 10017

Address (PQShield Inc., California): 900 E Hamilton Ave # 100, Campbell, CA 95008

Address (PQShield G.K., Tokyo): Daiwa Akasaka Bldg. 4F, 2-14-5 Akasaka, Minato-ku, Tokyo 107-0052

9. Callsign

Callsign delivers passive, behavioral authentication and fraud-prevention technology for web and mobile transactions. The company’s public site lists core platform components by name, including an Intelligence Engine, an Orchestration Layer, an Authentication Suite called Callsign One, and explicit compliance references for PSD2 & SCA plus KYC & AML.

Prospective buyers can evaluate Callsign through the vendor’s developer documentation and SDKs, which require registration for the documentation portal and include web and mobile integration guides. The site also invites procurement conversations via a Book a Demo form and highlights customer quotes from a major US bank and a tier 1 retail bank that buyers can request as deeper case studies during evaluation.

Key Highlights

• The homepage displays an ISO/IEC 27001 information security management badge.
• An AICPA logo appears on the site, indicating a recognized audit or assurance relationship.
• The site lists a “Digital Trust Index” product in its navigation as a separate offering.
• Callsign’s About page states the company’s origin story begins in 1994.

Services

• Account login & access
• Online payments & transactions
• Account creation & registration
• Zero Trust network access

Contact Information

Website: www.callsign.com

General enquiry: info@callsign.com

Support: support@callsign.com

10. iProov

iProov is a London‑headquartered provider of face biometric verification that verifies a person is the right person, a real person, and authenticating right now. The company documents remote onboarding and authentication capabilities and emphasizes device‑independent delivery through a compact SDK and web/OIDC integrations shown in its developer documentation.

Key Highlights

• Independently certified to meet the NIST SP 800-63-4 digital identity guidelines.
• Holds multiple formal attestations including ISO/IEC 30107-3 liveness conformance and SOC 2 Type II.
• First vendor to achieve the FIDO Alliance face verification certification for its face biometric offering.
• Publishes customer case studies and lists major deployments including the US Department of Homeland Security, UBS, and Rabobank.

Services

• Biometric Authentication
• Remote Onboarding
• Liveness Detection
• Workforce MFA

Contact Information

Website: www.iproov.com

Email: contact@iproov.com

Email (APAC): apac-sales@iproov.com

Address: iProov Ltd, 10 York Road, London, SE1 7ND, United Kingdom

LinkedIn: linkedin.com/company/iproov

11. Hack The Box

Hack The Box operates a hands-on cybersecurity training and readiness platform centered on live labs and role-based courses. The site documents HTB Academy, an entirely browser-based learning environment, and a labs catalogue that the homepage lists as 1,720 Hacking Labs and ongoing weekly content updates.

Buyers evaluating Hack The Box for penetration testing, red-team, or cloud security readiness can review its Enterprise Platform features and lab types before buying. The official site describes Dedicated Labs, Pro Labs for real-world penetration testing with certificates of completion, Cloud Labs and Professional Labs, MITRE-mapped content, CVE-based scenarios, and advanced reporting and analytics that customers can request in demos or during onboarding.

Key Highlights

• 1,500+ organizations trained is listed on the company About page as a customer footprint.
• Pro Labs are described on the site as “real-world penetration testing on enterprise infrastructure” and award a certificate of completion.
• The platform supports CVE-based scenarios and content mapped to MITRE techniques for role-based assignments and assessments.
• Hack The Box publishes a Talent Search/job board and recruitment features that let organizations source and assess validated security candidates.

Services

• HTB Academy
• Pro Labs
• Enterprise Platform
• Talent Search

Contact Information

Website: www.hackthebox.com

Conclusion

SoftPro is the featured international partner listed first and is recommended for UK organisations that require secure web applications and cloud migration, serving the UK market with cross-border delivery.

When choosing among these UK-focused cybersecurity providers, match technical depth to your primary risk profile and prioritise vendors that specialise in the specific domain you need. Confirm the delivery model and integration approach because managed services, SaaS, toolkits, and on‑prem options place different demands on operations. Assess maintenance and lifecycle support with attention to update cadence, vulnerability remediation, and audit-quality evidence for controls. Evaluate collaboration fit by testing training and simulation offerings, API-driven automation, and regulatory compatibility to ensure long-term operational alignment.

Frequently asked questions

How much do cybersecurity solutions from the UK's top providers typically cost?

Costs vary widely depending on service type, deployment model, and organisation size. Simple cloud services or training subscriptions can be relatively inexpensive, while managed detection, bespoke projects, and enterprise deployments take a larger budget. Contact shortlisted vendors such as SoftPro, Mimecast, or BT for tailored quotes and scope estimates.

How do I choose between providers like Mimecast, PortSwigger, and Immersive Labs?

Start by identifying your primary need—email protection, web application testing, or staff skills development—and shortlist vendors that specialise in that area. Compare integration capabilities, compliance support, support SLAs, and trial or proof-of-concept options. Ask for references from organisations with similar size and regulatory requirements.

Which providers are best for improving employee cyber skills and simulated exercises?

Vendors focused on hands-on learning and simulation, such as Immersive Labs and Hack The Box, are designed for skills development and adversary emulation. Choose a platform that offers measurable progress tracking and aligns content to your threat profile. Ensure the training integrates with your HR and security processes for sustained improvement.

What is a typical implementation timeline when adopting a managed security service from a UK vendor?

Implementation can range from a few weeks for cloud-native tools to several months for full managed services and enterprise integrations. Expect phases for scoping, pilot deployment, integration with existing systems, and tuning of detection rules. Plan for ongoing optimisation after go-live rather than a one-time handoff.

What are the main risks and benefits of outsourcing cybersecurity to a UK provider like SoftPro or Panaseer?

Benefits include access to specialised expertise, continuous monitoring, and faster incident response capabilities. Risks include potential vendor lock-in, data residency or compliance concerns, and reliance on external SLAs. Mitigate risks through careful contract terms, regular audits, and clear escalation and data-handling policies.