Top 100 Cybersecurity Companies in London
The Best of June 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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331Undisclosed50 - 249 employeesFarnborough, EnglandForesite Cybersecurity is a Cybersecurity company. Their midsize team is based in Overland Park, Kansas and Farnborough, England and specializes in Cybersecurity, Compliance Consulting, cloud consulting & SI, and IT managed services. The agency was launched in 2013.Read More
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332Undisclosed2 - 9 employeesLondon, EnglandLocated in London, England, TestPro Consulting Ltd is a small Cybersecurity company. Their services include Cybersecurity and Artificial Intelligence.Read More
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333Undisclosed2 - 9 employeesLondon, EnglandPrivacyRise™ is an IT strategy consulting company. They are in London, England, and their services include IT strategy consulting and Cybersecurity.Read More
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334Undisclosed2 - 9 employeesStanmore, EnglandAdroit Global Ltd. Is a small IT strategy consulting company. They offer IT strategy consulting and BI & big data consulting & SI and were founded in 2004.Read More
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335Undisclosed2 - 9 employeesLondon, EnglandLaunched in 2015, Meta Defence Labs Ltd is a big data company. Their team provides BI & big data consulting & SI and Cybersecurity.Read More
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336Undisclosed2 - 9 employeesLondon , EnglandWalker & Munns IT Consultants Limited, an IT strategy consulting company, was launched in 2023. The team specializes in IT strategy consulting and Cybersecurity.Read More
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337Undisclosed2 - 9 employeesCity of London, EnglandLP Networks Ltd, an IT strategy consulting company, was founded in 2004. They provides IT strategy consulting and cloud consulting & SI.Read More
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338Undisclosed2 - 9 employeesLondon, EnglandKiktronik Limited is a small London, England-based Cybersecurity company. Their services include Cybersecurity and IT managed services.Read More
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339$5,000+Freelancer employeesEsher, EnglandAlchemy Consulting Services Ltd is an IT strategy consulting company. They provide IT strategy consulting and AI Consulting and were established in 2024.Read More
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340$5,000+10 - 49 employeesSevenoaks, EnglandIT strategy consulting company Proxar IT was established in 2008. Located in Sevenoaks, England, the team focuses on IT strategy consulting and cloud consulting & SI.Read More
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341$5,000+50 - 249 employeesThundridge, EnglandEspria is a Thundridge, England-based IT strategy consulting company. They offer IT strategy consulting and cloud consulting & SI.Read More
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342$1,000+Freelancer employeesLondon, EnglandProsperaCore, a small AI Consulting company, is based in London, England. The team provides AI Consulting and Corporate Training & Coaching.Read More
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343Undisclosed250 - 999 employeesOldbury, EnglandCybersecurity company A&O IT Group focuses on Cybersecurity. They were established in 1997.Read More
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344Undisclosed2 - 9 employeesHemel Hempstead, EnglandCybersecurity company Security Everywhere Ltd. Is headquartered in Hemel Hempstead, England. They focus on Cybersecurity and were launched in 2020.Read More
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345$5,000+10 - 49 employeesLondon, EnglandADM computing is an IT managed services company launched in 1984. The company focuses on IT managed services and Cybersecurity, and is small.Read More
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346Undisclosed2 - 9 employeesLondon, EnglandBranding agency WESH UK is located in London, England. They focus on Branding and IT managed services.Read More
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347$1,000+10 - 49 employeesSevenoaks, EnglandIn Sevenoaks, England, Managed Service Provider is a small IT strategy consulting company. The team offers IT strategy consulting and cloud consulting & SI.Read More
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348Undisclosed2 - 9 employeesLondon, EnglandITGRC ADVISORY LTD. Is a small Cybersecurity company founded in 2020. Their team offers Cybersecurity and Compliance Consulting.Read More
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349Undisclosed10 - 49 employeesBerkhamsted, EnglandHeadquartered in Berkhamsted, England, Memgraph is a software development company. Founded in 2016, the team provides Custom Software Development and Cybersecurity.Read More
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350Undisclosed1,000 - 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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351$5,000+10 - 49 employeesLondon, EnglandOur IT Department is an IT managed services company in London, England. They focus on IT managed services and cloud consulting & SI.Read More
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352$5,000+10 - 49 employeesLondon, EnglandIT managed services company Databarracks was founded in 2003. The team provides IT managed services and Cybersecurity and is located in London, England.Read More
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353$5,000+10 - 49 employeesSurrey , EnglandClass Networks is an IT managed services company established in 1989. Headquartered in Surrey , England and London, England, the team offers IT managed services and cloud consulting & SI.Read More
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354Undisclosed10 - 49 employeesHounslow, EnglandPacific Infotech UK Ltd is a Hounslow, United Kingdom-based branding company. The small team offers branding, web design, ux/ui design, IT strategy consulting, and more and was launched in 2003.Read More
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355Undisclosed10 - 49 employeesLondon, EnglandLT Harper is a London, England-based cloud consulting & SI company. They focus on cloud consulting & SI and Cybersecurity.Read More
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356Undisclosed10 - 49 employeesCity of London, EnglandStack Digital is a small cloud consulting & SI company. The City of London, England-based company was founded in 2020. Their team focuses on cloud consulting & SI, BI & big data consulting & SI, cybersecurity, IT managed services, and more.Read More
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357Undisclosed50 - 249 employeesLondon, EnglandDATAMTX LLC, a business intelligence company, was launched in 1993. The midsize team specializes in BI & big data consulting & SI and ERP consulting and SI.Read More
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358UndisclosedFreelancer employeesLondon, EnglandXcina Security Team, a small Cybersecurity company, is in London, England. Their services include Cybersecurity and IT managed services.Read More
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359Undisclosed50 - 249 employeesTemple, EnglandEstablished in 2008, X4 Technology is a big data company. Their team provides BI & big data consulting & SI and Cybersecurity.Read More
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360$5,000+10 - 49 employeesStevenage, EnglandIT managed services company Primenet was launched in 1998. The firm focuses on IT managed services and Cybersecurity.Read More
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