Top 100 Cybersecurity Companies in London
The Best of October 2026Looking for a top cybersecurity consultant in London?
Check out our list of the best cybersecurity consulting companies to choose a partner that can secure your company. Preventing data breaches should be the top security priority for all businesses in the digital age.
To assist you in your search for a partner, we’ve compiled this list of the top cybersecurity consulting companies in London. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
Jump to Most Reviewed Companies
List of the Best London Cybersecurity Consultants
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91$5,000+10 - 49 employeesLondon , EnglandBinary Response is a Cybersecurity company. Based in London , England, their team specializes in Cybersecurity.Read More
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92Undisclosed2 - 9 employeesLondon, EnglandCyberstrategix Consulting is a Cybersecurity company. The agency is located in London, England. Their team offers Cybersecurity.Read More
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93$1,000+2 - 9 employeesLondon, EnglandSecvura, a Cybersecurity company, was launched in 2026. They offers Cybersecurity.Read More
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94$25,000+10 - 49 employeesLondon, EnglandSnatchDigital is an IT staff augmentation company. The team focuses on IT staff augmentation and Application Testing and is in London, England and San francisco, California.Read More
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95Undisclosed10 - 49 employeesLondon, EnglandDealDone LTD is a small Cybersecurity company established in 2012. Their team offers Cybersecurity and Blockchain.Read More
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96$10,000+10 - 49 employeesLondon, EnglandOTIFYD is a Cybersecurity company in London, England and Dubai, United Arab Emirates. They specialize in Cybersecurity and IT strategy consulting.Read More
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97Undisclosed10 - 49 employeesLondon, EnglandHeadquartered in London, England, Zero Trust Solutions is a Cybersecurity company. Their services include Cybersecurity and Microservices Architecture Services.Read More
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98$1,000+2 - 9 employeesLondon, EnglandBlue Icon IT is a Cybersecurity company. They are located in London, England, and their services include Cybersecurity and IT managed services.Read More
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99Undisclosed50 - 249 employeesLondon, EnglandStripe OLT is a Cybersecurity company. The company is in Bristol, England and London, England. Their team provides Cybersecurity and IT managed services.Read More
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100$1,000+2 - 9 employeesLondon, EnglandPxosys Ltd is a Cybersecurity company. The London, England-based firm focuses on Cybersecurity and cloud consulting & SI.Read More
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101$1,000+2 - 9 employeesLondon, EnglandLittle Big Tech is an IT managed services company. Established in 2021, the agency is headquartered in London, England and Hever, England. Their team offers IT managed services and Cybersecurity.Read More
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102$1,000+2 - 9 employeesLondon, EnglandSmall Cybersecurity company DefendVista Ltd, is located in London, England. Their services include Cybersecurity and IT managed services.Read More
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103$10,000+1,000 - 9,999 employeesLondon, EnglandTelefónica Tech (EN) is a Cybersecurity company. They are in London, England, and their services include Cybersecurity and IT managed services.Read More
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104Undisclosed10 - 49 employeesLondon, EnglandEstablished in 2021, KOBU SMART LTD is a small London, England-based cloud consulting & SI company. Their team specializes in cloud consulting & SI and Cybersecurity.Read More
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Travel RadarIndustries
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105Undisclosed10 - 49 employeesLondon, EnglandLAN Support Systems Ltd is a Godalming, England-based IT managed services company. Their services include IT managed services and Cybersecurity.Read More
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106Undisclosed50 - 249 employeesLondon, EnglandEstablished in 2011, Callsign is an artificial intelligence firm. The team provides Artificial Intelligence and Cybersecurity.Read More
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107$5,000+1,000 - 9,999 employeesLondon, EnglandEmagine is an IT managed services company established in 2001. The firm offers IT managed services and IT staff augmentation.Read More
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108Undisclosed50 - 249 employeesLondon, EnglandHeadquartered in Bishop's Stortford, England and London, England, ITVET is an IT managed services company. They provide IT managed services and Cybersecurity and were founded in 2007.Read More
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109Undisclosed250 - 999 employeesLondon, EnglandHeadquartered in Singapore, Singapore and Makati, Philippines, Adventus is an IT strategy consulting company. They focus on IT strategy consulting and cloud consulting & SI.Read More
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110$1,000+10 - 49 employeesLondon, EnglandMacnitech is a cloud consulting & SI company. The company is located in London, England. Their services include cloud consulting & SI and Cybersecurity.Read More
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111$1,000+2 - 9 employeesLondon, EnglandLaunched in 2024, Coreitech is an IT managed services company. The team offers IT managed services and Cybersecurity.Read More
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112$10,000+50 - 249 employeesRomford, EnglandGenius Logix is a software development firm based in Romford, England and Austin, Texas. The midsize agency was established in 2023. Their team offers Custom Software Development, ERP consulting and SI, Enterprise App Modernization, IT managed services, and more.Read More
Clients
Versatel Germany Loopwise Speedy WashIndustries
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113$5,000+10 - 49 employeesLondon, EnglandLaunched in 1999, Lucidica is an IT managed services company. The agency offers IT managed services and Cybersecurity.Read More
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114Undisclosed2 - 9 employeesLondon, EnglandLaunched in 2021, Social Media Experts Ltd is a small London, England-based Cybersecurity company. Their services include Cybersecurity and Internet & Technology Law.Read More
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115$1,000+10 - 49 employeesFitzrovia, London, EnglandWeb development firm OWA Digital is based in Oxford, England and Fitzrovia, London, England. Their services include Web Development and Mobile App Development.Read More
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116$1,000+10 - 49 employeesLondon, EnglandDr Logic is an IT managed services company. Launched in 2003, the team provides IT managed services and Cybersecurity. The firm is based in London, England.Read More
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117$1,000+2 - 9 employeesLondon, EnglandCybersecurity company Custodia Cyber is headquartered in London, England. The team provides Cybersecurity and IT managed services.Read More
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118Undisclosed2 - 9 employeesBrookmans Park, EnglandLBM Cyber is a Cybersecurity and Corporate Training & Coaching company. The Brookmans Park, England-based firm offers Cybersecurity and Corporate Training & Coaching.Read More
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119Undisclosed2 - 9 employeesLondon, EnglandStreym Ltd is an IT strategy consulting company headquartered in London, England. They offer IT strategy consulting and Cybersecurity and were founded in 2006.Read More
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120$1,000+10 - 49 employeesLondon, EnglandIG-Smart Ltd is a Cybersecurity company. Their team is located in London, England. The company specializes in Cybersecurity and IT managed services.Read More
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