Top 100 Cybersecurity Companies in London
The Best of February 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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361$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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362Undisclosed10 - 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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363$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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364Undisclosed50 - 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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365Undisclosed50 - 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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366$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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367UndisclosedFreelancer 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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368Undisclosed10 - 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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369$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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370$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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371$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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372$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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373$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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374Undisclosed50 - 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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375Undisclosed10 - 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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376$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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377$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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378$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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379Undisclosed10 - 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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380$5,000+10 - 49 employeesBrighton, EnglandHyve Managed Hosting is an IT managed services company. They specialize in IT managed services and cloud consulting & SI and were established in 2001. The firm is located in Brighton, England.Read More
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381$25,000+50 - 249 employeesThatcham, EnglandSupport Revolution is an IT strategy consulting company. Their midsize team of employees is in Thatcham, England. Their team offers IT strategy consulting and ERP consulting and SI.Read More
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382Undisclosed10 - 49 employeesRG1 1LX, EnglandShift Left Group is an IT strategy consulting company. Launched in 2015, the team provides IT strategy consulting and cloud consulting & SI.Read More
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383$1,000+2 - 9 employeesBedford, EnglandIT strategy consulting company PublicTec was established in 2021. The company provides IT strategy consulting and cloud consulting & SI, and is small.Read More
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384Undisclosed250 - 999 employeesOxford, EnglandNominet is an Oxford, England-based Cybersecurity company. Launched in 1996, the team specializes in Cybersecurity.Read More
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385Undisclosed10 - 49 employeesOxford, EnglandFounded in 1996, Wiseserve Ltd. Is a Cybersecurity company. Their team provides Cybersecurity and IT managed services.Read More
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386Undisclosed250 - 999 employeesShoreham-by-Sea, EnglandFocus Group , a cloud consulting & SI company, provide cloud consulting & SI and unified communications consulting & SI. They were founded in 2003.Read More
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387UndisclosedFreelancer employeesBrighton and Hove, EnglandSmall Cybersecurity company PC HELP MAN, is based in Brighton and Hove, England. The team focuses on Cybersecurity and other IT consulting and SI.Read More
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388Undisclosed10 - 49 employeesLinton, EnglandCybersecurity company Mannassi IT Solutions was launched in 1996. The firm provides Cybersecurity and IT managed services, and is small.Read More
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389Undisclosed10 - 49 employeesWorthing, EnglandCounterpoint is an IT managed services company headquartered in Worthing, England. Their services include IT managed services and IT strategy consulting.Read More
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390$5,000+10 - 49 employeesKempston, EnglandTotal IT Technology Solutions Ltd is an IT managed services company founded in 2006. The small team focuses on IT managed services and unified communications consulting & SI.Read More
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