A digital storm brews on the horizon. Your business data, once tethered to terrestrial servers, now drifts among the ethereal nebulae of cloud computing. But amid the celestial tranquility, unseen dangers lurk. Nebulous threats, malicious hackers and data breaches stoke the winds of this storm, threatening to plunge your data into a digital abyss. As you grapple with these turbulent forces, an intricate dance of safeguarding protocols can make your head spin faster than a rogue satellite.
Hold fast, intrepid explorer. Your quest for secure cloud computing needn’t be a lonesome odyssey. Right here, in the heart of London, a legion of cloud security champions stand ready to quell the storm. These 17 best cloud security companies in London have harnessed the power of cutting-edge technologies, prepared to shield your data from impending tempests. Join us as we traverse the London cloud security cosmos, charting a course toward safer digital skies.
1. A-Listware
A-listware is a provider of tailored cybersecurity solutions and IT services. We operate from delivery hubs in Ukraine, Poland, and Romania, with offices in the UK and the USA. Our team works with clients across finance, healthcare, telecom, retail, and other sectors, helping them reduce risks and strengthen compliance through structured and practical security solutions.
At A-listware, we focus on both ongoing protection through managed security services and specialized one-time support. Our cybersecurity team includes certified ethical hackers, SIEM and DevSecOps engineers, infrastructure auditors, and cloud security specialists. We emphasize actionable results security audits, code reviews, SIEM integration, DDoS mitigation, and vulnerability assessments always aligned with industry standards such as ISO 27001, SOC 2, HIPAA, and GDPR.
Security is never one-size-fits-all. That’s why we adapt our solutions to each client’s operational and regulatory needs, delivering meaningful improvements to system resilience, monitoring, and incident response.
Want to understand how we work? Explore our approach to cybersecurity and see how we align services to your needs.
Our service menu includes:
- Risk Analysis and Management
- Infrastructure and Application Security Testing
- Security Compliance and Auditing
- Cloud Security and Monitoring
- SIEM Architecture and Integration
- DDoS Protection and Network Hardening
- Penetration Testing and Vulnerability Management
- Data Loss Prevention Configuration
- Cybersecurity Consulting and Strategy Planning
If you’re still on the fence, just contact us and we’ll explain everything in detail. With A-listware, you can rest assured that your data is in safe hands, leaving you free to focus on running your business.
- Headquarters: London, UK
- Founded: 2017
- Specialization: Cybersecurity Consulting, Managed Security Services
2. Transputec Ltd
With a rich history spanning over 35 years, Transputec Ltd stands as a distinguished leader in the field of IT services and solutions. Their comprehensive offerings encompass a wide range of services, including IT support, managed services, application development, and cybersecurity solutions. Committed to helping businesses thrive in the digital landscape, Transputec’s team of experts works diligently to transform IT infrastructure and ensure organizations stay at the forefront of technology. Renowned for their innovative approach and unwavering dedication to customer satisfaction, Transputec empowers businesses to enhance operational efficiency, reduce costs, and gain a competitive edge.
- Headquarters: London, UK
- Founded: 1986
- Specialization: IT Services, Managed Services, Cybersecurity
3. Evalian
Evalian is a consultancy firm specializing in data protection, penetration testing, GDPR, ISO 27001 support, and cybersecurity. They offer a range of services including strategy, policy, impact assessments, risk, governance, and compliance. Evalian’s approach is to provide real-world, pragmatic advice, delivered by experienced consultants. They are committed to helping businesses stay ahead of security incidents with vulnerability scanning, pen testing, web app testing, and cloud security configuration reviews. Evalian’s services are designed to help businesses navigate the complex landscape of data protection and cybersecurity.
- Headquarters: Hampshire, UK
- Founded: 2018
- Specialization: Data Protection, Penetration Testing, Cybersecurity, ISO Certification
4. Esynergy Solutions
Esynergy Solutions is a technology consultancy and lean DevOps practitioner that builds products, services, and platforms. They work with the world’s largest companies to help them innovate and grow. Esynergy Solutions offers a range of services including cloud and platform solutions, data architecture, visualization, governance, and operational enablement. They are known for their diverse expertise and client-focused approach. Esynergy Solutions is committed to delivering technology solutions that deliver measurable value.
- Headquarters: London, UK
- Founded: 2007
- Specialization: Technology Consultancy, Lean DevOps Services
5. HewardMills
HewardMills is a global data protection officer (DPO) service provider that helps organizations comply with data laws and regulations, including cybersecurity standards. They offer a range of services including compliance support, diverse expertise, structured approach, and client focus. HewardMills is committed to providing independent and objective support on data-related matters. They are trusted across industries and have a proven track record of delivering successful outcomes.
- Headquarters: London, UK
- Founded: 2018
- Specialization: Data Protection, Privacy Solutions, Compliance Support
6. Smartdesc
Smartdesc is a trusted IT support provider for charities and not-for-profit organizations. They offer a range of services including IT strategy, security and governance, support and help desk services, and infrastructure design and optimization. Smartdesc is known for their proactive partnerships, sharing best practice and innovation, and going the extra mile to exceed expectations. They translate the technical for the non-technical, provide actionable advice, and deliver tailored IT solutions that focus on organizations’ needs and desired outcomes.
- Headquarters: London, UK
- Founded: 2011
- Specialization: IT Support, Cybersecurity, Infrastructure Design & Optimization
7. Texaport Ltd
Texaport, a cybersecurity company based in Edinburgh, Scotland, specializes in delivering holistic solutions to businesses, guaranteeing the security and compliance of their digital assets. Their extensive portfolio of services encompasses cybersecurity training, managed IT services, and GDPR compliance. Texaport’s team of professionals is committed to assisting businesses in comprehending and effectively managing their cybersecurity risks by equipping them with the necessary tools and expertise. By leveraging Texaport’s services, businesses can confidently protect their valuable digital assets.
- Headquarters: Edinburgh, Scotland
- Founded: 2012
- Specialization: Cybersecurity Training, Managed IT Services, GDPR Compliance
8. Clear Thinking IT Solutions
Clear Thinking, headquartered in the UK, emerges as a prominent IT solutions provider, catering to businesses across various sectors. Their expertise lies in delivering managed IT services, comprehensive cybersecurity solutions, and efficient cloud services. With a strong commitment to aiding businesses in optimizing their IT operations and safeguarding their digital assets, Clear Thinking’s team of IT professionals strives to provide tailored solutions that precisely align with each client’s requirements. Their wide range of services encompasses IT support, cloud solutions, cybersecurity, and reliable data backup and recovery.
- Headquarters: Sussex, England
- Founded: 2009
- Specialization: Managed IT Services, Cybersecurity, Cloud Services
9. Cloudserve Ltd
Cloudserve is a UK-based managed IT support company that specializes in providing technology solutions for businesses, schools, and charities. Since 2009, the company has been offering managed services, consulting, and IT solutions using a highly personalized, user-driven approach. Cloudserve’s solutions, which can be securely accessed from anywhere, are designed to transform organizations using cloud technology. The company also provides a Managed Windows Virtual Desktop Solution, allowing users to deliver a virtual desktop experience and remote apps to any device.
- Headquarters: Bournemouth, UK
- Founded: 2009
- Specialization: Managed IT Support, Cloud Solutions, Windows Virtual Desktop Solution
10. TIBUS
TIBUS is a provider of secure, managed hosting for important websites, offering technology and advice for UK & Irish companies to deliver on their digital strategies. The company provides a full range of secure hosting options for private and public sector organizations, streaming & CDN services, and innovative and flexible connectivity solutions. TIBUS is fully certified under ISO 27001, ensuring a high level of IT security and information governance.
- Headquarters: Belfast, UK
- Founded: 1996
- Specialization: Managed Hosting, Streaming & CDN Services, Connectivity Solutions
11. Audacix
Audacix is a cybersecurity company that specializes in security testing and training. They offer a range of services, including penetration testing, security audits, and cybersecurity training. Their team of experts is committed to helping businesses identify and mitigate potential security risks, ensuring the safety of their digital assets. They also provide a unique “test automation” service, which allows businesses to automate their security testing processes, saving time and resources while maintaining a high level of security.
- Headquarters: London, UK
- Founded: 2010
- Specialization: Security Testing, Cybersecurity Training, Test Automation
12. TWC IT Solutions
TWC IT Solutions emerges as a prominent force in the realm of IT services, providing an extensive array of solutions aimed at enhancing businesses’ IT infrastructure. Their expertise lies in managed IT services, cloud solutions, and cybersecurity, equipping businesses with the necessary tools to thrive securely and maintain competitiveness in the digital era. By placing customer satisfaction at the forefront, TWC IT Solutions pledges to deliver top-notch services that align with the distinct requirements of each client.
- Headquarters: London, UK
- Founded: 2010
- Specialization: Managed IT Services, Cloud Solutions, Cybersecurity
13. Teceze Ltd
Teceze Ltd is a renowned global provider of IT services, catering to a diverse range of needs including cybersecurity, managed IT services, cloud services, and more. Their unwavering commitment lies in equipping businesses with the necessary tools and support to excel in the digital realm. Collaborating closely with clients, Teceze’s team of experts diligently comprehends their unique requirements and delivers tailored solutions that fuel business growth and enhance operational efficiency.
- Headquarters: London, UK
- Founded: 2012
- Specialization: Cybersecurity, Managed IT Services, Cloud Services
14. BSI Group
BSI Group is a global business improvement partner that has been shaping best practices for over a century. They help organizations around the world embed excellence, build competence, and capability for sustainable growth. As a Microsoft Gold Partner and Apple Specialist, they facilitate trade, improve efficiency, accelerate innovation, and deliver digital trust. They have a presence on every continent, with 87 offices in 31 countries, serving clients ranging from globally recognized brands to small, local businesses.
- Headquarters: London, UK
- Founded: 1901
- Specialization: Business Improvement, Digital Trust, Organizational Resilience
15. Systemagic Ltd
Systemagic Ltd is a provider of IT support and cloud services with a people-focused approach. They offer a range of services including business IT support, cloud computing, cybersecurity services, and business connectivity. They pride themselves on their quick response times, rolling monthly contracts, and high customer satisfaction rate. As a Microsoft Gold Partner and Apple Specialist, they aim to seamlessly integrate technology within businesses.
- Headquarters: London, UK
- Founded: 1999
- Specialization: IT Support, Cloud Services, Cybersecurity
16. CloudTech24 Ltd.
CloudTech24 Ltd., a London-based IT support provider, is renowned for its premium IT support and consultancy services. With a global presence, they offer round-the-clock remote IT support, ensuring businesses stay secure and efficient. Their expertise extends to real-time IT systems monitoring, IT infrastructure, patch management, and IT health checks. They also provide penetration testing services to identify and fix potential vulnerabilities. For businesses with internal IT teams, they offer co-managed support packages. Their partnerships with tech giants like Google and Microsoft further enhance their ability to manage and resolve issues related to these platforms.
- Headquarters: London, UK
- Founded: 2016
- Specialization: IT Support, Cybersecurity, Consultancy Services
17. Redscan
Redscan, a Kroll Business, is a leading cybersecurity services company based in the UK. They offer a wide range of specialist security services, including Managed Detection and Response (MDR), Cyber Incident Response, and Assessment & Advisory. Their services are designed to enhance an organization’s cyber resilience and reduce the burden of facing the latest threats. Redscan’s unique approach includes an adversarial mindset, outcome-focused strategies, and technology-agnostic solutions. They have a strong reputation for their high-quality service and extensive experience in conducting pen testing, red teaming, and other ethical hacking engagements.
- Headquarters: London, UK
- Founded: 2015
- Specialization: Managed Detection and Response (MDR), Cyber Incident Response, Assessment & Advisory
Schlussfolgerung
With the rise of digital threats, securing your cloud space has become a business imperative. The top 17 cloud security firms in London we’ve explored are your bulwark against these challenges, ready to safeguard your data while allowing your business to embrace the benefits of cloud computing. They’re not just service providers, they’re partners in building a resilient, secure digital future for your business. So, navigate the skies confidently and take your business to new heights with top-notch cloud security by your side.
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