Top 100 Cybersecurity Companies in the United Kingdom
The Best of February 2026Looking for a top cybersecurity consultant in the United Kingdom?
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 United Kingdom. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
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List of the Best United Kingdom Cybersecurity Consultants
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91$1,000+10 - 49 employeesStourbridge, EnglandSuperfast IT is a Cybersecurity company. In Stourbridge, England, the agency specializes in Cybersecurity and IT managed services.Read More
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92$5,000+250 - 999 employeesPraha 5, Czech RepublicSoitron is a Bratislava 25, Slovakia-based IT managed services company. The team provides IT managed services and IT staff augmentation.Read More
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HPEIndustries
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93Undisclosed250 - 999 employeesManchester, EnglandInKnowTech is an IT managed services company. The team is based in Bengaluru, India and Bengaluru, India, and their services include IT managed services and cloud consulting & SI.Read More
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94$5,000+250 - 999 employeesBorehamwood, EnglandRaygain Technologies is a cloud consulting & SI company. Located in Borehamwood, England and New Delhi, India, their team focuses on cloud consulting & SI and Cybersecurity.Read More
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95Undisclosed50 - 249 employeesHalifax, EnglandWicresoft, an IT strategy consulting company, offer IT strategy consulting and BI & big data consulting & SI. They were founded in 2002.Read More
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96Undisclosed10 - 49 employeesLondon, EnglandGoAllSecure is a Cybersecurity company launched in 2022. The firm provides Cybersecurity and cloud consulting & SI.Read More
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97Undisclosed10 - 49 employeesPlymouth, EnglandCybersecurity company Constant Edge is based in Plymouth, England and Claymont, Delaware. Founded in 2018, the team provides Cybersecurity.Read More
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98Undisclosed10 - 49 employeesLondon, EnglandSURFSecurity is a Cybersecurity company. They are headquartered in London, England and have small team. They offer Cybersecurity.Read More
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99$1,000+10 - 49 employeesAldershot, EnglandIntouch Cyber Security is a Cybersecurity company. They are headquartered in Aldershot, England, and their services include Cybersecurity and Compliance Consulting.Read More
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100Undisclosed2 - 9 employeesLondon, EnglandRockSec Group, a small Cybersecurity company, is located in London, England. Their services include Cybersecurity and cloud consulting & SI.Read More
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101$1,000+10 - 49 employeesLondon, EnglandSecore Information Security Ltd is a Cybersecurity company. The London, England-based agency was launched in 2023. Their team specializes in Cybersecurity.Read More
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102Undisclosed2 - 9 employeesLondon, EnglandFounded in 2020, Cyber Sense Limited is a Cybersecurity company. The team offers Cybersecurity and Application Testing.Read More
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103Undisclosed250 - 999 employeesLondon, EnglandBased in London, England, Marshall Info Tech is a midsize IT managed services company. The team specializes in IT managed services and Cybersecurity.Read More
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104$10,000+50 - 249 employeesWallsend, EnglandForfusion is a midsize Wallsend, England-based IT managed services company. Their services include IT managed services and IT strategy consulting.Read More
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105Undisclosed2 - 9 employeesSunderland, EnglandLaunched in 2018, CyberWhite Limited is a Cybersecurity company. The agency offers Cybersecurity and IT managed services.Read More
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106Undisclosed10 - 49 employeesBelfast, Northern IrelandSmall Cybersecurity and IT managed services company Nimbus, is located in Belfast, Northern Ireland. Their services include Cybersecurity and IT managed services.Read More
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107Undisclosed10 - 49 employeesLondon, EnglandFounded in 2013, First Response is a Cybersecurity and IT managed services company. The team focuses on Cybersecurity and IT managed services.Read More
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108Undisclosed50 - 249 employeesLondon, EnglandEstablished in 2011, Callsign is an artificial intelligence firm. The team provides Artificial Intelligence and Cybersecurity.Read More
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109$5,000+2 - 9 employeesJarrow, EnglandVanguard Cyber Security Ltd is a small Cybersecurity company headquartered in Jarrow, England. The team focuses on Cybersecurity.Read More
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110$5,000+2 - 9 employeesOldbrook, EnglandGEOPC Ltd is an Oldbrook, England-based Cybersecurity company. Founded in 2023, the team provides Cybersecurity.Read More
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111$5,000+50 - 249 employeesLondon, EnglandLightrove Technology is a midsize Cybersecurity company founded in 2020. Their services include Cybersecurity and IT staff augmentation.Read More
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112$1,000+50 - 249 employeesGloucester, EnglandCloud9 Data Solutions is a Cybersecurity company. Launched in 2018, the company specializes in Cybersecurity and Compliance Consulting.Read More
Clients
SonyIndustries
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113$50,000+2 - 9 employeesLondon, EnglandMonsevo, a Cybersecurity company, provide Cybersecurity. They were launched in 2023.Read More
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114$1,000+1,000 - 9,999 employeesLondon, EnglandIT strategy consulting company Beryl Technologies Ltd is headquartered in London, United Kingdom and Multan, Pakistan. The firm focuses on IT strategy consulting, cybersecurity, and IT managed services and is large.The firm was launched in 2023.Read More
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115Undisclosed2 - 9 employeesWakefield, EnglandHacked Website Fix is a Cybersecurity company. They were established in 2017 and offer Cybersecurity and IT managed services.Read More
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116$1,000+2 - 9 employeesLondon, EnglandCybersecurity company Dreadsec Ltd is headquartered in London, England. The team offers Cybersecurity.Read More
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117$5,000+50 - 249 employeesLondon, EnglandCybersecurity company Cybernoq LTD is headquartered in London, England. Their services include Cybersecurity and IT managed services.Read More
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118$5,000+1,000 - 9,999 employeesLondon, EnglandSigma Software Security, a Compliance Consulting company, is in London, England and Warszawa, Poland. Their services include Compliance Consulting and Cybersecurity.Read More
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119$1,000+2 - 9 employeesLondon, EnglandCybersecurity company AttackIUM is in London, England. They provide Cybersecurity.Read More
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120Undisclosed2 - 9 employeesStamford, EnglandHeadquartered in Stamford, England, Quantum Leap Security Ltd is a Cybersecurity company. They offer Cybersecurity and AI Consulting and were founded in 2025.Read More
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