Top 100 Cybersecurity Companies in London
The Best of January 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.
List of the Best London Cybersecurity Consultants
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331$1,000+10 - 49 employeesBishop's Stortford, EnglandGenmar (UK) Ltd is an IT managed services company. Established in 1996, the team offers IT managed services and cloud consulting & SI.Read More
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332$5,000+2 - 9 employeesdunstable, EnglandLegacy Cyber is a dunstable, England-based Cybersecurity company. The team offers Cybersecurity and Search Engine Optimization.Read More
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333$1,000+10 - 49 employeesPitstone, EnglandCloudandmore, a Cybersecurity company, was founded in 2021. The team focuses on Cybersecurity and IT strategy consulting and is based in Pitstone, England and Bristol, England.Read More
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334UndisclosedFreelancer employeesLeatherhead, EnglandData GRC Ltd is an IT strategy consulting company. Founded in 2017, the team provides IT strategy consulting and Cybersecurity. The agency is headquartered in Leatherhead, England.Read More
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335UndisclosedFreelancer employeesEC3V 3NG, EnglandCybersecurity company Eldentech Limited is in EC3V 3NG, England. Launched in 2018, the team specializes in Cybersecurity and Custom Software Development.Read More
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336Undisclosed10 - 49 employeesLightwater, Englandéclat Marketing is a public relations firm. Launched in 1998, the company is based in Lightwater, England. Their services include Public Relations and Digital Strategy.Read More
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337Undisclosed2 - 9 employeesLuton, EnglandTechspace International is a Cybersecurity company in Luton, England. Founded in 2023, the small team focuses on Cybersecurity, Custom Software Development, IoT development, Web Development, and more.Read More
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338$10,000+50 - 249 employeesMeppershall, EnglandCentrality is a Cybersecurity company. Headquartered in Meppershall, England, the firm specializes in Cybersecurity and IT strategy consulting.Read More
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339$1,000+2 - 9 employeesBramley, EnglandIn Bramley, England, MGENIOUS is a small cloud consulting & SI company. Their services include cloud consulting & SI and unified communications consulting & SI.Read More
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340Undisclosed2 - 9 employeesBishop's Stortford, EnglandFounded in 2020, CREAVO is an IT strategy consulting company. The firm focuses on IT strategy consulting and cloud consulting & SI, and is small.Read More
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341Undisclosed2 - 9 employeesHorsham, EnglandCybersecurity company PocketSIEM is located in Horsham, England. They specialize in Cybersecurity and were established in 2019.Read More
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342$5,000+2 - 9 employeesLetchworth, EnglandIT managed services company Edge IT was founded in 2012. The team provides IT managed services and Cybersecurity and is located in Letchworth, England.Read More
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343Undisclosed10 - 49 employeesKings Hill, EnglandIT Backbone Limited, an IT managed services company, specialize in IT managed services and Cybersecurity. They were launched in 2008.Read More
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344$10,000+10 - 49 employeesDunstable, EnglandTechAll Solutions is an IT strategy consulting company. Headquartered in Dunstable, England, the company was established in 2024. Their services include IT strategy consulting and IT managed services.Read More
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345Undisclosed50 - 249 employeesWoodley, EnglandCapito Ltd is a midsize Livingston , Scotland-based IT strategy consulting company. The team provides IT strategy consulting and cloud consulting & SI.Read More
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346Undisclosed50 - 249 employeesAylesbury, EnglandRed Helix is a Cybersecurity company. The firm is in Aylesbury, England. Their services include Cybersecurity and IT managed services.Read More
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347$5,000+10 - 49 employeesCamberley, EnglandProjectfive is an IT managed services company. Founded in 2002, the team focuses on IT managed services and Cybersecurity. The firm is based in Camberley, England.Read More
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348UndisclosedFreelancer employeesLondon, EnglandNandini Consulting, a Market Research company, is located in London, England. They specialize in Market Research and IT strategy consulting.Read More
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349Undisclosed10 - 49 employeesUckfield, EnglandFounded in 2003, PS Tech, a small IT managed services company, is located in Uckfield, England. Their team focuses on IT managed services and Cybersecurity.Read More
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350$10,000+250 - 999 employeesReading , EnglandLaunched in 2003, Herjavec Group is an IT managed services company. The team provides IT managed services and Cybersecurity.Read More
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351$5,000+50 - 249 employeesTheale, EnglandClearswift is a Cybersecurity company. Their midsize team is based in Theale, England and provides Cybersecurity. The agency was founded in 1982.Read More
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352$10,000+1,000 - 9,999 employeesTheale, EnglandRapid7 is a Cybersecurity company. Their large team is in Boston, Massachusetts and Manhattan Beach, California. Their services include Cybersecurity and IT managed services.Read More
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353$1,000+2 - 9 employeesReading, EnglandIn Reading, England and Reading, England, Dead Simple Computing is an IT strategy consulting company. They offer IT strategy consulting and cloud consulting & SI.Read More
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354$1,000+10 - 49 employeesBasingstoke, EnglandCybersecurity company Censornet was founded in 2005. Based in Basingstoke, England and Brøndby, Denmark, the team focuses on Cybersecurity.Read More
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355Undisclosed50 - 249 employeesMilton Keynes, EnglandBluecube Technology Solutions is a Milton Keynes, England-based IT managed services company. They offer IT managed services and Cybersecurity.Read More
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356Undisclosed10 - 49 employeesBrighton, EnglandIngenio Technologies is an IT managed services company. The Brighton, England-based agency specializes in IT managed services and IT strategy consulting.Read More
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357$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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358$5,000+10 - 49 employeesBasingstoke, EnglandInfosec Cloud, an IT managed services company, provide IT managed services and cloud consulting & SI. They were founded in 2012.Read More
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359$5,000+10 - 49 employeesGuildford , EnglandSmall IT managed services company Pro Drive IT Limited, is in Guildford , England. The team provides IT managed services and IT strategy consulting.Read More
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360Undisclosed10 - 49 employeesBrighton, EnglandNew World Tech is a cloud consulting & SI company. Based in Brighton, England, the firm provides cloud consulting & SI and Cybersecurity.Read More
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