Just as the silver linings of cloud computing have begun to shine, businesses across the globe are hit by a stark reality – a tempest of cloud-related security threats. It feels like sailing in turbulent seas, where every unsecured data packet could trigger a tsunami of cyber attacks. Add to this the convoluted matrix of cloud security measures, and the storm seems ready to burst, flooding enterprises with anxieties and vulnerabilities.
But don’t lower your sails just yet – there’s a fleet of saviors on the horizon. We present to you the crème de la crème, the 20 best cloud security companies in the UK. These titans stand steadfast, each offering a formidable bulwark against even the most complex cyber threats. From securing sensitive data to ensuring smooth and secure operations, they’re your ticket to smooth sailing in the cloud. Let’s embark on this journey and explore how these companies are reshaping the landscape of cloud security in the UK.
1. A-listware
At A-listware, we’re hands-on cybersecurity specialists delivering structured, efficient, and transparent protection for your digital infrastructure. Our model isn’t based on exaggerated hourly billing – we focus on long-term collaboration through clear service scopes and tailored engagements. Whether you need a dedicated team or a one-time audit, we provide practical solutions backed by real expertise.
You might ask, why work with A-listware instead of hiring internally? Here’s the difference: our specialists don’t just step in and leave, we integrate with your team, provide measurable value, and build systems that scale with your business. From day one, we work to strengthen your compliance, minimize operational risks, and close gaps before they’re exploited.
We work with companies across finance, healthcare, telecom, e-commerce, and SaaS – helping them meet standards like ISO 27001, SOC 2, HIPAA, and GDPR. And we don’t stop at reports: our engineers assist in implementing the changes they recommend, keeping your systems safe and your teams informed.
Our service menu includes:
- Risk Analysis and Management
- Infrastructure and Application Security Audits
- Compliance Assessment and Reporting
- Cloud Security and Monitoring
- Penetration Testing and Threat Simulation
- SIEM System Design and Tuning
- DDoS Mitigation and Network Hardening
- Mobile, Web, and API Security
- Code Review and DevSecOps Support
We believe in focusing on actual risks and actionable fixes. That’s why our teams include ethical hackers, SIEM architects, DevSecOps engineers, and audit consultants – working together to protect what matters. Whether you’re running a healthcare platform, an e-commerce engine, or a banking system, we align protection with purpose.
So, ready to get practical about cybersecurity? Learn how we build secure systems and see how we can support your business today!
- Headquarters: London. UK
- Founded: 2017
- Specialization: Cybersecurity Consulting and Managed Security Services
2. Texaport
Texaport is a global IT support and cybersecurity services provider specializing in managed IT services, cybersecurity, and GDPR compliance. They are dedicated to helping businesses grow and succeed by providing comprehensive IT solutions that are tailored to their specific needs. With a strong focus on customer service, Texaport ensures that their clients’ IT systems are secure, efficient, and effective, enabling them to focus on their core business operations. They also offer cybersecurity training to help businesses protect their data and systems from cyber threats.
- Headquarters: Edinburgh, UK
- Founded: 2012
- Specialization: Managed IT Services, Cybersecurity, GDPR Compliance
3. ReputationDefender
ReputationDefender is a leading online reputation management company that helps individuals and businesses control their digital presence. They offer a suite of services, including online reputation management, privacy protection, and digital privacy solutions. With a commitment to helping clients look their best online, ReputationDefender uses patented technology to make positive content more visible while pushing down unwanted or misleading information in search engine results.
- Headquarters: Redwood City, California, USA
- Founded: 2006
- Specialization: Online Reputation Management, Privacy Protection, Digital Privacy Solutions
4. Transputec Ltd
Transputec Ltd is a well-established IT services company providing cutting-edge solutions to businesses across various sectors. They offer a wide range of services, including IT support, managed services, application development, and cybersecurity solutions. With over 35 years of experience, Transputec has a proven track record of delivering innovative IT solutions that help businesses improve their operations and achieve their strategic goals.
- Headquarters: London, UK
- Founded: 1986
- Specialization: IT Support, Managed Services, Application Development, Cybersecurity Solutions
5. Orca Security
Orca is a pioneer in the field of cloud visibility and security, providing a cloud-native security platform that enables businesses to discover, monitor, and protect their cloud assets. Their patented SideScanning™ technology delivers deep visibility into the entire cloud environment without the need for agents or per-asset integration, providing comprehensive security and compliance across all cloud workloads.
- Headquarters: Tel Aviv, Israel
- Founded: 2019
- Specialization: Cloud Visibility, Cloud Security
6. HewardMills
HewardMills is a global leader in data protection officer services. They provide expert guidance and support to organizations worldwide, helping them navigate the complexities of data protection and compliance. Their team of experienced data protection officers provides practical advice and solutions, ensuring that organizations meet their legal obligations and protect their most valuable asset – their data.
- Headquarters: London, UK
- Founded: 2017
- Specialization: Data Protection Officer Services, GDPR Compliance, Data Privacy
7. esynergy
esynergy is a community-driven IT recruitment firm that specializes in cloud and open-source technologies. They provide a unique approach to recruitment, focusing on building communities and networks of professionals who are passionate about technology. Through their community events and workshops, they connect businesses with the best talent in the industry, helping them build high-performing teams that can drive innovation and growth.
- Headquarters: London, UK
- Founded: 2000
- Specialization: IT Recruitment, Cloud Technologies, Open-Source Technologies
8. Smartdesc
Smartdesc is a unique IT support and strategy company, specializing in serving not-for-profit organizations. As an NCVO-approved Trusted Supplier, they understand the unique challenges faced by the sector and have a proven track record of delivering IT success stories. Their services range from IT strategy, security & governance, to support and help desk services, and infrastructure design & optimization. They prioritize trusted, proactive partnerships, sharing best practice and innovation, and exceeding expectations while keeping overheads low to pass on cost-savings to customers.
- Headquarters: London, UK
- Founded: 2011
- Specialization: IT Support for Charities & Not For Profit Organizations
9. Clear Thinking IT Solutions
Clear Thinking IT Solutions is an IT solutions company based in Essex, specializing in secure and compliant technical services. They offer a range of services, including proactive technical support, security solutions, communications, and professional services. As a managed security services provider, they deliver preventative solutions that protect businesses from threats. They also provide communication solutions to keep lines of communication clear and open between businesses and their customers.
- Headquarters: Essex, UK
- Founded: 2013
- Specialization: IT Support, Security, Communications, Professional Services
10. BJSS
BJSS is a leading technology and engineering consultancy for businesses. They are trusted by clients to deliver complex, innovative technology, engineering, and industry solutions that millions of people use every day. Passionate about design, they engineer world-class technology solutions embracing strategy, software, cloud, data, AI, and automation. Their teams of talented technologists and consultants use their Enterprise Agile approach to build dynamic technology platforms that scale and accelerate time to value.
- Headquarters: Leeds, UK
- Founded: 1993
- Specialization: Technology and Engineering Consultancy, Enterprise Agile, Cloud, Data, AI, and Automation
11. PAVilion
PAVilion is an IT solution and support provider delivering first-class IT support to companies of all sizes across the UK. They offer a range of services, including IT services for various sectors such as legal, accountancy, manufacturing, and retail. They also provide technology solutions focusing on communication and collaboration, modern workspaces, and data and governance. Their goal is to help businesses thrive in the modern era by providing seamless integrations between their various IT systems.
- Headquarters: Brighton, UK
- Founded: 1988
- Specialization: IT Support, Communication, and Collaboration, Modern Workspaces, Data, and Governance
12. Cloudserve Ltd
Cloudserve Ltd is a UK-based Managed IT Support company that specializes in enhancing and supporting technology within businesses, schools, and charities. Since 2009, they have been transforming businesses with their market-leading Managed Services, Consulting, and IT solutions. They offer a personalized, user-driven approach to address business needs with cloud technology. Their solutions can be securely accessed from anywhere and provide the flexibility to only pay for the resources actually used.
- Headquarters: Bournemouth, UK
- Founded: 2009
- Specialization: Managed IT Support, Cloud Solutions, Consulting
13. Evalian
Evalian is a data protection and information security company that provides a wide range of services to help businesses protect their data and comply with regulations. They offer GDPR consultancy, data protection officer services, data protection impact assessments, information security consultancy, and ISO 27001 certification services. Evalian’s team of experts are dedicated to helping businesses understand and manage their risks, ensuring they are compliant and their data is secure.
- Headquarters: United Kingdom
- Founded: Unknown
- Specialization: Data Protection, Information Security, GDPR Consultancy, ISO 27001 Certification
14. TIBUS
TIBUS is a leading provider of digital services, offering a range of solutions including hosting, connectivity, and content delivery. They are committed to delivering high-quality, reliable, and secure digital services to businesses of all sizes. TIBUS has a team of experienced professionals who work closely with clients to understand their needs and deliver tailored solutions that drive business growth.
- Headquarters: United Kingdom
- Founded: Unknown
- Specialization: Hosting, Connectivity, Content Delivery
15. ACUMED Data Ltd
ACUMED Data Ltd is a renowned IT solutions provider dedicated to serving the unique needs of the healthcare sector. With a wide array of services, including data management, IT support, and software development, they empower healthcare organizations to enhance their operations and deliver exceptional patient care. ACUMED Data Ltd’s team of experts is passionate about delivering reliable, secure, and high-quality IT solutions tailored to the specific requirements of the healthcare industry.
- Headquarters: United Kingdom
- Founded: Unknown
- Specialization: IT Solutions for Healthcare, Data Management, IT Support, Software Development
16. BSI Group
BSI Group is a global business standards company that provides a range of solutions to help businesses improve their performance and grow sustainably. They offer services in the areas of risk management, compliance, business continuity, and information security. BSI Group is committed to helping businesses navigate the complexities of the global marketplace, ensuring they meet the highest standards of excellence.
- Headquarters: United Kingdom
- Founded: 1901
- Specialization: Business Standards, Risk Management, Compliance, Business Continuity, Information Security
17. TWC IT Solutions
TWC IT Solutions is a leading provider of IT services, offering a range of solutions including IT support, cloud services, and cybersecurity. They are committed to delivering high-quality, reliable, and secure IT solutions that help businesses operate more efficiently and effectively. TWC IT Solutions has a team of experienced professionals who work closely with clients to understand their needs and deliver tailored solutions that drive business growth.
- Headquarters: United Kingdom
- Founded: Unknown
- Specialization: IT Support, Cloud Services, Cybersecurity
18. Teceze Ltd
Teceze Ltd is an IT services company that provides a wide range of solutions to help businesses improve their IT infrastructure and security. They offer services in the areas of managed IT, cybersecurity, cloud services, and network solutions. Teceze Ltd’s team of experts are dedicated to helping businesses understand and manage their IT risks, ensuring their infrastructure is secure and efficient.
- Headquarters: United Kingdom
- Founded: Unknown
- Specialization: Managed IT, Cybersecurity, Cloud Services, Network Solutions
19. Apex Computing Services Ltd
Apex Computing Services Ltd is a Manchester-based IT support company that provides a wide range of IT solutions, including cloud services, IT infrastructure, and IT security. They offer services such as server management, data encryption, Microsoft 365 support, data backup, and equipment repairs. Their team of experts is ready to resolve any IT challenges for businesses of all sizes. As a Microsoft Gold Partner, they guarantee high support and technical assistance.
- Headquarters: Manchester, UK
- Founded: 2003
- Specialization: IT Support, Cloud Solutions, Business Continuity, IT Security
20. DynaRisk
DynaRisk is a cyber risk management company that provides tools and services to help consumers and businesses protect themselves online. They comprehensively assess digital behavior and security vulnerabilities and scan for information about breached and leaked accounts in their database. This information helps to determine a Cyber Security Score, similar to a credit score, designed to help users understand their risk level from cyber threats. They also provide a personalized improvement plan and consistent monitoring against their breached and leaked records database.
- Headquarters: Covent Garden, London, UK
- Founded: Unknown
- Specialization: Cyber Risk Management, Data Breach Monitoring, Cyber Security Score, Personalized Improvement Plan
Conclusion
Finding the right cloud security company can feel like a bit of a maze. There are plenty of options, and each one promises to be the best. But at the end of the day, it really comes down to who understands your business, your risks, and how to keep your data safe without overcomplicating things.
The companies listed above all bring something different to the table. Whether you’re looking for a hands-on partner to help with compliance, someone to tighten up your cloud configurations, or a full managed security service, there’s a team out there that fits.
Think about what matters most for your organization: is it 24/7 monitoring? Help with audits? Custom threat detection? Use that as your starting point, and go from there. And don’t be afraid to ask questions. A good security partner won’t just sell you a solution, they’ll help you understand it.
Cloud security doesn’t have to be overwhelming. With the right support, you can move faster, sleep better, and focus on what your business does best knowing your data is covered.
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