Top Cyber Security Companies in London

Wizard Cyber are an industry-leading managed security services provider, specialising in protecting enterprises against emerging cyber threats Wizard Cyber are a global cyber security partner – with offices in the UK, Qatar, Jordan, and the USA – allowing us to provide 24x7x365 protection for our customers As a Microsoft Solutions Partner and Azure Expert MSP, ... read Wizard Cyber reviews & insights

Wizard Cyber are an industry-leading managed security services provider, specialising in protecting enterprises against emerging ... read Wizard Cyber reviews & insights

Ratcliff IT is a full-service managed IT provider focused on delivering secure, compliant, and highly responsive support to well-run, growing businesses. We believe great IT is built on strong relationships, clear communication, and consistency—not jargon or ticket queues.

Ratcliff IT is a full-service managed IT provider focused on delivering secure, compliant, and highly ... read Ratcliff IT reviews & insights

Organisations are looking at what they need to do to enable growth and efficiency, we show you the ROI and drive the reason to change....... We transform the way you do business creating technology that makes the difference to your business. Our goals and our mission are simple! Use our FTE global / hybrid expertise ... read Neo Technology Ltd reviews & insights

Organisations are looking at what they need to do to enable growth and efficiency, we ... read Neo Technology Ltd reviews & insights

Simplified Solutions & Co Ltd is a London-based payments, security and software consultancy established in 2010. We help UK organisations achieve PCI DSS and ISO 27001 compliance, test their defences with manual-led penetration testing, and build secure payment and software platforms. Our work spans PCI DSS and PCI SSF compliance, open banking, ISO 27001 certification ... read Simplified Solutions reviews & insights

Simplified Solutions & Co Ltd is a London-based payments, security and software consultancy established in ... read Simplified Solutions reviews & insights

RiverSafe Limited is a specialist consultancy that offer only the highest quality services and support in the network security and information management space. Our unique approach to fulfilling each of our customers'​ requirements is backed by a wealth of experience, developed through work in some of the largest companies in the world. Many of these ... read River Safe reviews & insights

RiverSafe Limited is a specialist consultancy that offer only the highest quality services and support ... read River Safe reviews & insights

MassiveGRID is a global high-end cloud service provider with more than 20 years of hands-on experience in high-availability service hosting, turn-key solutions, and development. Our services are designed for demanding clients that run business-critical services or need high performance and large network capacity. We envision a world where seamless, scalable, and secure cloud infrastructure empowers ... read MassiveGRID reviews & insights

MassiveGRID is a global high-end cloud service provider with more than 20 years of hands-on ... read MassiveGRID reviews & insights

7Safe helps your organization to develop, maintain and grow cybersecurity and information investigation capabilities - increasing your overall trust in the systems that you operate, the information that you hold and the people who have access to it.

7Safe helps your organization to develop, maintain and grow cybersecurity and information investigation capabilities - ... read 7Safe reviews & insights

A multiple Microsoft Gold Partner with ISO9001, IS027001 and Cyber Essentials accreditation, Bridgeall can help your organisation build a Modern Intelligent Workplace quickly and securely. We work closely with you to ensure that the right technology solutions are embedded at the core of everything your organisation does. We streamline internal systems, processes and workflows to ... read Bridgeall reviews & insights

A multiple Microsoft Gold Partner with ISO9001, IS027001 and Cyber Essentials accreditation, Bridgeall can help ... read Bridgeall reviews & insights

Business Overview Established in 2009, IG-Smart Ltd is a pioneering force in the realm of data privacy, security, and digital technology consultancy. Our unwavering mission is to drive positive global change and sustainable development by empowering socially responsible organisations to harness personal and sensitive data, as well as digital technologies, lawfully, securely, and safely. Unlocking ... read IG-Smart reviews & insights

Business Overview Established in 2009, IG-Smart Ltd is a pioneering force in the realm of ... read IG-Smart reviews & insights

SOCGuardians Ltd — Expert Cybersecurity Services & Compliance Partner SOCGuardians Ltd is a UK-based cybersecurity company (Reg. No. 16554518) dedicated to helping businesses strengthen their security posture and achieve compliance through end-to-end cybersecurity services. Headquartered in Wales, we serve a growing portfolio of clients across the UK and globally, delivering trusted, expert-led protection. With over ... read SOCGuardians Ltd reviews & insights

SOCGuardians Ltd — Expert Cybersecurity Services & Compliance Partner SOCGuardians Ltd is a UK-based cybersecurity ... read SOCGuardians Ltd reviews & insights

Cybernoq provides comprehensive cybersecurity and IT solutions for businesses and organizations. Our services include network protection, cloud security, threat monitoring, secure infrastructure management, and IT project implementation. We empower our clients to protect their digital assets and achieve operational excellence using cutting-edge technology and expert guidance.

Cybernoq provides comprehensive cybersecurity and IT solutions for businesses and organizations. Our services include network ... read Cybernoq LTD reviews & insights

Montalex is a London-based IT consultancy helping small and medium businesses stay secure and productive. We provide managed IT support, Microsoft 365 deployment and hardening, cybersecurity improvements, and Cyber Essentials certification preparation. Cyber Essentials certified and led by an MSc-qualified cybersecurity professional. No long-term contracts, no hidden fees — remote and on-site across the UK.

Montalex is a London-based IT consultancy helping small and medium businesses stay secure and productive. ... read Montalex Limited reviews & insights

tech|sapiens is a specialist provider of IT services to Small & Medium Enterprise (SME) clients in the UK & around the world. Our consultants have decades of industry experience in diverse areas including IT Infrastructure & Operations Management, Security, Application Development, Virtualisation and Hosted / Cloud Services. We are passionate about what we do and ... read Tech Sapiens reviews & insights

tech|sapiens is a specialist provider of IT services to Small & Medium Enterprise (SME) clients ... read Tech Sapiens reviews & insights

We believe in building a better world through secure digital enablement, focusing on empowering organisations through every stage of their digital journey, and solving their most complex business challenges with our comprehensive suite of technology solutions across Data & AI, Cyber Security, Cloud, Business Applications, and Digital Workplace. Our people, with deep-rooted expertise and specialist ... read Telefonica Tech reviews & insights

We believe in building a better world through secure digital enablement, focusing on empowering organisations ... read Telefonica Tech reviews & insights

Cloudscape are IT experts based in Central London, providing IT support services to companies in the city and the Greater London area. We specialise in business IT support services of all kinds and work predominantly with SMEs. However, we also have a loyal customer base with larger international companies thanks to our fully serviced managed ... read Cloudscape IT Support London reviews & insights

Cloudscape are IT experts based in Central London, providing IT support services to companies in ... read Cloudscape IT Support London reviews & insights

Automiq is an automation strategy and execution business that helps enterprise clients to achieve the real-world benefits of service and business workflow automation, helping to prevent and recover rapidly from cyber attacks​.​ We partner with our enterprise clients to simplify and strengthen their technology - across three interconnected areas of service insight and automation, cyber ... read Automiq reviews & insights

Automiq is an automation strategy and execution business that helps enterprise clients to achieve the ... read Automiq reviews & insights

Little Big Tech provides managed IT support and cyber security for ambitious 10–100 user businesses across London and the Southeast, with expertise in professional services - legal, financial services and private healthcare.We help growing businesses take control of their technology by combining responsive day-to-day support with proactive management, 24/7 security monitoring and strategic guidance. When ... read Little Big Tech reviews & insights

Little Big Tech provides managed IT support and cyber security for ambitious 10–100 user businesses ... read Little Big Tech reviews & insights

ITJobBoard.co.uk - the leading UK IT job board. Search information technology jobs and apply online. IT job search and online IT recruitment advertising services. The IT JOB BOARD helps technology professionals manage their careers and employers connect with highly skilled tech talent.

ITJobBoard.co.uk - the leading UK IT job board. Search information technology jobs and apply online. ... read IT Job Board reviews & insights

Isoline Communications is a London-based B2B technology content marketing agency founded in 2015. The company specializes in helping technology, telecoms, infrastructure, and other complex B2B businesses turn technical subject matter into clear, engaging marketing content and campaigns. Its work spans content strategy, research, thought leadership, demand generation, brand awareness, social media, sales enablement, SEO, website ... read Isoline Communications reviews & insights

Isoline Communications is a London-based B2B technology content marketing agency founded in 2015. The company ... read Isoline Communications reviews & insights

So-Creative is a dynamic, award-winning web development and software agency that transforms how businesses and brands engage with their audiences. With a team that has been at the forefront of digital innovation for many years, So-Creative redefines the boundaries of design, technology, and creativity.By working closely with clients, So-Creative ensures that their vision is not ... read So-Creative reviews & insights

So-Creative is a dynamic, award-winning web development and software agency that transforms how businesses and ... read So-Creative reviews & insights

We are proud to be one of London's most engaging and professional IT and Unified Communications companies. Whether you're looking for IT support, better collaboration tools, infrastructure solutions, cloud migrations or consultancy, we are moments away.London is one of the most vibrant, innovative and culturally rich cities in Europe. The businesses are diverse, dynamic, inclusive ... read Portman Tech Solutions reviews & insights

We are proud to be one of London's most engaging and professional IT and Unified ... read Portman Tech Solutions reviews & insights

24/7 Award-winning IT support and cybersecurity support Trusted by over 250 clients globally, CloudTech24 supports businesses with cybersecurity and IT support services. We leverage real-time monitoring to proactively secure your devices, cloud platforms and end-users.

24/7 Award-winning IT support and cybersecurity support Trusted by over 250 clients globally, CloudTech24 supports ... read CloudTech24 reviews & insights

Doherty Associates is a London-based Managed Service Provider delivering managed IT services, cyber security and AI innovation.For more than 35 years, we have helped organisations reduce risk, improve performance and get more value from technology. As an award-winning and highly accredited Microsoft partner, we combine deep technical expertise with a practical, business-focused approach.We provide 24/7 ... read Doherty Associates reviews & insights

Doherty Associates is a London-based Managed Service Provider delivering managed IT services, cyber security and ... read Doherty Associates reviews & insights

We understand business and business people, so we approach with a business hat on first. We do not take work on for the sake of work, only if we can enhance your business. We turn down 50% of projects, as sometimes, we may not be able to enhance it or it will take over 5 ... read Monkey Magic Cloud reviews & insights

We understand business and business people, so we approach with a business hat on first. ... read Monkey Magic Cloud reviews & insights

Risk Ledger is a pioneering third-party risk management platform that revolutionises supply chain security through a powerful, unified solution. By onboarding and connecting your entire supply chain into an active network, Risk Ledger provides real-time insights to identify concentration risks and emerging threats. Our dynamic network-based model offers a clear view of your entire supply ... read Risk Ledger reviews & insights

Risk Ledger is a pioneering third-party risk management platform that revolutionises supply chain security through ... read Risk Ledger reviews & insights

Calligo is the world's first end-to-end managed data services provider, with a global track record in improving organizations' productivity & profitability by making their data more available, secure and safe. Calligo puts data and its privacy at the heart of a unique collection of managed data services for SMEs and enterprises that optimize and protect ... read Calligo reviews & insights

Calligo is the world's first end-to-end managed data services provider, with a global track record ... read Calligo reviews & insights

London’s most trusted fully managed IT support and technology experts. Netstar provides fully managed IT support and technology consulting services to over 150 London businesses. Our focus is on providing fast paced, high quality support, and delivering expert advice when you need it. With over 18 years of proven experience, we focus on aligning your ... read Netstar reviews & insights

London’s most trusted fully managed IT support and technology experts. Netstar provides fully managed IT ... read Netstar reviews & insights

Get IT support including computer repairs, cyber security, computer networking, cloud computing etc. in Barnet. Logica Nova provides its services not only in Barnet, but also serves other local areas like Potters Bar, Hertfordshire, Finchley, Totteridge, Cockfosters, Whetstone etc. in North London.

Get IT support including computer repairs, cyber security, computer networking, cloud computing etc. in Barnet. ... read Logica Nova reviews & insights

At Honour IT Tech, we don’t just build websites and apps — we engineer digital evolution. Based in the heart of London, we are a digital transformation company driven by innovation, strategy, and a passion for turning ideas into impactful technology. We specialize in: Web & App Development – Custom, scalable, and user-focused solutions for ... read Honour IT.tech reviews & insights

At Honour IT Tech, we don’t just build websites and apps — we engineer digital ... read Honour IT.tech reviews & insights

When traditional ISPs stall, we deliver! Digital Avenue provides bonded 5G, emergency internet, and temporary connectivity for businesses, MSPs, and corporate events across the UK. We specialise in rapid deployment of reliable internet where fixed-line providers can’t move fast enough — whether you’re opening a new office, running a high-stakes event, or need a rock-solid ... read Digital Avenue Limited reviews & insights

When traditional ISPs stall, we deliver! Digital Avenue provides bonded 5G, emergency internet, and temporary ... read Digital Avenue Limited reviews & insights

Network Support London provides IT support, cyber security, IT compliance and AI adoption for London businesses of 20 to 250 people. Our team of 17 works from The Leather Market by London Bridge, SE1, and has looked after London firms since 2006.What we doManaged IT support and a 24/7 help desk, on-site and remoteCyber security, ... read Network Support London reviews & insights

Network Support London provides IT support, cyber security, IT compliance and AI adoption for London ... read Network Support London reviews & insights

Kanj Technologies provides IT services, cyber security and technology consultancy for businesses in regulated industries. Based in Hammersmith, London, with operations in the UK, UAE, India and the USA. Kanjtech brings 20 years of experience supporting organisations in manufacturing, engineering, healthcare and financial services.Expertise spans cloud infrastructure, Microsoft 365, Azure and AWS, alongside cyber security, ... read Kanj Technologies reviews & insights

Kanj Technologies provides IT services, cyber security and technology consultancy for businesses in regulated industries. ... read Kanj Technologies reviews & insights

At Method, we deliver a strategic approach to IT. We act as an extension of your business, providing an unrivalled level of protection and managed IT support, cyber security, systems management and implementation and design services. We understand that an effective IT strategy plays a pivotal role in the successful operation of your business. For ... read Method IT UK reviews & insights

At Method, we deliver a strategic approach to IT. We act as an extension of ... read Method IT UK reviews & insights

TG Coders is a technological partner dealing with delivering and developing applications, web portals, websites, software, IT and ICT solutions. We are a Software House that helps to change the world through the latest technologies. We create customized IT and ICT solutions. Our team consists of the best specialist within their domain. Work truly is ... read TG Coders reviews & insights

TG Coders is a technological partner dealing with delivering and developing applications, web portals, websites, ... read TG Coders reviews & insights

TDM Group is a Managed Service and Security Provider delivering strategic technology solutions that create measurable value. Through our unique Managed Business IT Services (M-BiTS) approach, we go beyond traditional IT support by aligning technology with business priorities to drive transformation, improve performance, and support long-term growth.We understand that success does not come from technology ... read TDM Group reviews & insights

TDM Group is a Managed Service and Security Provider delivering strategic technology solutions that create ... read TDM Group reviews & insights

Blue Icon is a leading IT support company that provides a wide range of services to startups and SMBs. Our team of experienced and certified professionals can help you with everything from basic troubleshooting to complex network security. We are committed to providing our clients with the highest level of service and support, and we ... read Blue Icon IT reviews & insights

Blue Icon is a leading IT support company that provides a wide range of services ... read Blue Icon IT reviews & insights

Cyrentix Limited is a UK-based IT solutions provider committed to Powering Trust in Technology. We specialize in delivering secure, reliable, and innovative technology services that help businesses operate with confidence in a digital world. Our expertise spans cybersecurity, cloud infrastructure, digital transformation, software & web development, IT consulting, system integration, and managed IT services. With ... read Cyrentix Limited reviews & insights

Cyrentix Limited is a UK-based IT solutions provider committed to Powering Trust in Technology. We ... read Cyrentix Limited reviews & insights

Founded in 2000, 1st-IT is a London-based IT managed services provider helping SMBs and charities get the most from their technology. Over 25 years, we've built a reputation for reliable, jargon-free IT support across the City, West End, and Greater London. Our team handles everything from day-to-day IT support and cloud migrations to cybersecurity audits ... read 1st-it LTD reviews & insights

Founded in 2000, 1st-IT is a London-based IT managed services provider helping SMBs and charities ... read 1st-it LTD reviews & insights

Gradeon helps organisations to automate the running of business security, compliance, governance, and risk projects. Automation allows our customers to reduce the time it takes to deliver projects, to reduce the duplication of running projects in isolation. To enable key stakeholders to have real-time visibility on cross-project progress and to automate the collection of supporting ... read Gradeon Limited reviews & insights

Gradeon helps organisations to automate the running of business security, compliance, governance, and risk projects. ... read Gradeon Limited reviews & insights

Attack Vector is a UK-based cybersecurity consultancy specialising in expert-led penetration testing. We work with organisations in financial services, healthcare, government, media and technology that need independent assurance — for customer due diligence, ISO 27001, SOC 2 or PCI DSS evidence, NHS DTAC or DSPT submissions, or TPN/MPA content-security requirements. Our consultants hold Cyber Scheme ... read Attack Vector reviews & insights

Attack Vector is a UK-based cybersecurity consultancy specialising in expert-led penetration testing. We work with ... read Attack Vector reviews & insights

Managed IT, Microsoft 365, Azure, cloud and cybersecurity for businesses in London and across the UK, backed by a 24/7 help desk. Headquartered in London.

Managed IT, Microsoft 365, Azure, cloud and cybersecurity for businesses in London and across the ... read Foxcomm IT Services reviews & insights

MLabs builds and reviews software where the cost of being wrong is high. The work splits four ways: advice for founders and engineering leaders, development in Haskell, Rust and Nix, and independent review and formal verification before a system goes live. The fourth is running the identity and secrets infrastructure a team deploys and then ... read MLabs reviews & insights

MLabs builds and reviews software where the cost of being wrong is high. The work ... read MLabs reviews & insights

Needhams 1834 is an industry-leading business continuity and resilience management consultancy. We deliver real impact, value and lasting change for public and private sector clients across the worldwide. Our reputation has been built on the positive results of our work since 1996. Our award-winning consultants are globally recognised. This year, the BCI awarded our managing ... read Needhams 1834 reviews & insights

Needhams 1834 is an industry-leading business continuity and resilience management consultancy. We deliver real impact, ... read Needhams 1834 reviews & insights

At Cloudscape IT Services we offer complete IT services and computer support for businesses in the London area. With over 30 years’ experience, we aim to provide first-class computer support, we help businesses with day-to-day IT Support, Project Management and Cloud Services. From new server installations to individual desktops and laptops we have the expert ... read Cloudscape reviews & insights

At Cloudscape IT Services we offer complete IT services and computer support for businesses in ... read Cloudscape reviews & insights

Protection Group International is a digital risk and open source intelligence consultancy. We aim to tackle the modern threats faced by countries and organisations of all sizes. From cyber security services to business intelligence, our team of world-class experts help reduce the risks to your finances, physical assets and most of all, people.

Protection Group International is a digital risk and open source intelligence consultancy. We aim to ... read PGI reviews & insights

3Gi Technology is a global IT Managed Service Provider that offers IT consultancy, professional services, and managed services to businesses, including support for digital transformation, cloud, cybersecurity and AI solutions.

3Gi Technology is a global IT Managed Service Provider that offers IT consultancy, professional services, ... read 3Gi Technology reviews & insights

The Berkeley Partnership is a specialist management consultancy focused on helping organisations achieve successful transformation in complex, challenging, and high-stakes environments. Founded in 1990, the firm partners with business leaders to turn strategic ambitions into measurable outcomes through expert advice, practical delivery support, and long-term collaboration.With offices in London and New York, The Berkeley Partnership ... read The Berkeley Partnership reviews & insights

The Berkeley Partnership is a specialist management consultancy focused on helping organisations achieve successful transformation ... read The Berkeley Partnership reviews & insights

Axcelot is a cybersecurity consultancy built for industries where trust, continuity, and creativity matter. We work with organisations across film, broadcast, and media — as well as the transportation and telecoms sectors — helping them protect what they do best without getting in the way of how they do it. Whether it’s advising on compliance ... read Axcelot reviews & insights

Axcelot is a cybersecurity consultancy built for industries where trust, continuity, and creativity matter. We ... read Axcelot reviews & insights