Top 100 Cybersecurity Companies in the United Kingdom
The Best of December 2025Looking 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.
>List of the Best United Kingdom Cybersecurity Consultants
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91Undisclosed10 - 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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92Undisclosed10 - 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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93$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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94Undisclosed2 - 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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95$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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96Undisclosed2 - 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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97Undisclosed250 - 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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98$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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99Undisclosed2 - 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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100Undisclosed10 - 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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101Undisclosed10 - 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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102Undisclosed50 - 249 employeesLondon, EnglandEstablished in 2011, Callsign is an artificial intelligence firm. The team provides Artificial Intelligence and Cybersecurity.Read More
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103$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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104$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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105$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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106$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
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SonyIndustries
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107$50,000+2 - 9 employeesLondon, EnglandMonsevo, a Cybersecurity company, provide Cybersecurity. They were launched in 2023.Read More
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108$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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109Undisclosed2 - 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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110$1,000+2 - 9 employeesLondon, EnglandCybersecurity company Dreadsec Ltd is headquartered in London, England. The team offers Cybersecurity.Read More
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111$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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112$5,000+10 - 49 employeesLondon, EnglandLineal is a small Business Consulting company based in London, England and Hong Kong, Hong Kong. Their services include Business Consulting and Cybersecurity.Read More
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113$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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114$1,000+2 - 9 employeesGreenfield, EnglandBased in Greenfield, England, KEEP Information Security Services is a Cybersecurity company. They provide Cybersecurity and IT strategy consulting and were launched in 2014.Read More
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115Undisclosed1,000 - 9,999 employeesBracknell, EnglandIT strategy consulting company Excis Compliance was established in 2001. The team provides IT strategy consulting and cloud consulting & SI and is in Bracknell, England and Navi Mumbai, India.Read More
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116$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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117Undisclosed10 - 49 employeesBirmingham, EnglandMETCLOUD is a Cybersecurity company. They focus on Cybersecurity and IT managed services and were established in 2017. The firm is based in Birmingham, England.Read More
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118$1,000+50 - 249 employeesManchester, EnglandEstablished in 2016, Techolony is a midsize Cybersecurity company in Manchester, England. Their team offers Cybersecurity and IT managed services.Read More
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119$1,000+10 - 49 employeesEdinburgh, ScotlandIT managed services company Dunedin IT is based in Edinburgh, Scotland and Glasgow, Scotland. The team provides IT managed services and IT strategy consulting.Read More
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120Undisclosed50 - 249 employeesBristol, 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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