Top 100 Cybersecurity Risk Assessment Companies in London
The Best of December 2025Looking for a top vulnerability assessment service in London?
Having a secured business is synonymous with a successful business. In today’s age, the threats that lurk online are growing and evolving continuously. Knowing how to protect your company and your clients is crucial. That is why there are security risk assessors that will help you identify areas of risk within your system and process. You can use this information to take the necessary actions to cover all the cracks in your business and prevent these looming threats from taking advantage of your vulnerabilities.
To assist you in your search for a partner, we’ve compiled this list of the top cybersecurity risk assessment companies in London. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best London Vulnerability Assessment Services
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1$50,000+1,000 - 9,999 employeesLondon, EnglandRead More
Andersen Inc. Is a software development company based in Warszawa, Poland; Kraków, Poland; Dallas, Texas and London, England. The large team provides Custom Software Development, IT managed services, Mobile App Development, IT strategy consulting, and more. The agency was established in 2007.
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SamsungIndustries
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2$1,000+1,000 - 9,999 employeesLondon, EnglandRead More
Dotsquares is an IT managed services company in London, England; Mount Waverley, Australia; Albourne, England and Jaipur, India. The firm specializes in IT managed services, Web Development, Custom Software Development, Mobile App Development, and more and has a large team.The firm was founded in 2002.
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EricssonIndustries
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3$10,000+250 - 999 employeesLondon, EnglandRead More
Founded in 2015, Transparity is a cloud consulting & SI company. The midsize London, England-based team offers cloud consulting & SI, IT managed services, Custom Software Development, Artificial Intelligence, and more.
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Apex NSPCC NHS LushIndustries
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4$5,000+10 - 49 employeesLondon, EnglandLaunched in 2012, Texaport is an IT managed services company. The small team provides IT managed services, Cybersecurity, cloud consulting & SI, IT strategy consulting, and more. The firm is headquartered in Edinburgh, Scotland; Glasgow, Scotland; London, England and Manchester, England.Read More
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5$1,000+10 - 49 employeesLondon, EnglandRead More
Established in 1999, Systemagic Ltd is an IT managed services company. The firm offers IT managed services, cloud consulting & SI, cybersecurity, and IT strategy consulting and has a small team. The firm is located in Bradford on Avon, United Kingdom and London, United Kingdom.
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6$5,000+50 - 249 employeesLondon, EnglandLocated in London, England and Düsseldorf, Germany, Transputec Ltd is a Cybersecurity company. The midsize agency was launched in 1986. Their services include Cybersecurity, IT managed services, Artificial Intelligence, cloud consulting & SI, and more.Read More
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7$25,000+250 - 999 employeesLondon, EnglandSoftware development company Computools is in New York, New York; London, England; Oslo, Norway and Linz, Austria. The midsize team focuses on Custom Software Development, IT managed services, Mobile App Development, IT strategy consulting, and more. The firm was established in 2013.Read More
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Visa Epson IBM DiorIndustries
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8$10,000+250 - 999 employeesGdynia, PolandRead More
Link Group Global, inc. Is an Austin, Texas-based human resources agency. The midsize company was established in 2015. Their services include HR services, IT managed services, and IT staff augmentation.
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DanoneIndustries
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9Undisclosed1,000 - 9,999 employeesHelsinki, FinlandNordcloud is a cloud consulting & SI company launched in 2006. Their services include cloud consulting & SI and IT managed services.Read More
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FinnairIndustries
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10$1,000+10 - 49 employeesLondon, EnglandRead More
Founded in 2009, Carden IT Services in a London based IT company with offices in Brighton, Essex and New York City. They have a team of 13 who provide IT managed services, IT consulting, IT strategies, and voice services to small and mid market businesses.
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Levicks AccountantsIndustries
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11$5,000+50 - 249 employeesLondon, EnglandVirtuoso is a midsize IT managed services company launched in 2011. Their team focuses on IT managed services, IT strategy consulting, and cloud consulting & SI. The firm is located in London, England and Auckland, New Zealand.Read More
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12$5,000+10 - 49 employeesTower Bridge Rd, EnglandClear Thinking IT Solutions is an IT managed services company. Launched in 2009, the small firm is headquartered in Billericay, England; Tower Bridge Rd, England; Basildon, England and City of London, England. Their team focuses on IT managed services, Cybersecurity, and IT strategy consulting.Read More
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13$25,000+10 - 49 employeesLondon, EnglandRead More
BridgeApps Ltd is a small cloud consulting & SI company. They provide cloud consulting & SI, IT managed services, IT strategy consulting, ECM consulting and SI, and more and were launched in 2015.
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14$50,000+10,000+ employeesLondon, EnglandVirtusa is an IT strategy consulting company launched in 1993. They are in Southborough, Massachusetts; New York, New York; London, England and Hyderabad, India and have a large team. Their services include IT strategy consulting, IT managed services, Artificial Intelligence, AI Consulting, and more.Read More
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PegasystemsIndustries
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15$1,000+50 - 249 employeesLondon, EnglandRead More
Midsize IT managed services company Smart Working, is located in London, United Kingdom. Established in 2020, the team focuses on IT managed services, other IT consulting and SI, and IT staff augmentation.
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16$1,000+10 - 49 employeesLondon, EnglandTWC IT Solutions is an IT managed services company in London, England; Jersey City, New Jersey and Central, Hong Kong. The small team offers IT managed services, IT strategy consulting, cloud consulting & SI, unified communications consulting & SI, and more and was launched in 2011.Read More
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17$1,000+10 - 49 employeesLondon, EnglandRead More
Helpdesk Heroes is an IT managed services company. The small London, United Kingdom-based agency was launched in 2016. Their team focuses on IT managed services, cybersecurity, other IT consulting and SI, and IT staff augmentation.
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18$1,000+10 - 49 employeesLondon, EnglandRead More
Teceze Ltd is a London-based IT company founded in 2012 with more than 10 employees. They are experts in IT strategy consulting, cybersecurity, and IT managed services for clients that work in the industries of business services, consumer products, and more.
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Outsell, Inc.Industries
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19$5,000+10 - 49 employeesHarrow, EnglandFounded in 2018, Renav Technologies is an e-commerce development company. Their team offers E-Commerce Development and IT managed services.Read More
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20Undisclosed250 - 999 employeesLondon, EnglandLittlefish Managed IT Services is an IT managed services company. Their midsize team is located in Nottingham, United Kingdom; Sheffield, United Kingdom and London, United Kingdom. The firm specializes in IT managed services, cybersecurity, cloud consulting & SI, and IT strategy consulting. The firm was established in 2003.Read More
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21Undisclosed1,000 - 9,999 employeesKuala Lumpur, MalaysiaEstablished in 2014, Cloud4C is an IT managed services company. The agency offers IT managed services and cloud consulting & SI, and is large.Read More
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22$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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23$1,000+1,000 - 9,999 employeesLondon, EnglandSify Digital Services Ltd is a large IT staff augmentation company founded in 1995. Their team provides IT staff augmentation and IT managed services.Read More
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24Undisclosed250 - 999 employeesLondon, EnglandProfessional Advantage is a midsize ERP consulting and SI company in North Sydney, Australia and Melbourne, Australia. Their services include ERP consulting and SI and cloud consulting & SI.Read More
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25$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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26$1,000+10 - 49 employeesBeckenham, EnglandGregory Micallef Associates is an IT managed services company. They offer IT managed services and Call Center Services and were launched in 1992.Read More
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27$25,000+250 - 999 employeesLondon, EnglandPythian is a business intelligence company in Ottawa, Canada and San Francisco, California. They specialize in BI & big data consulting & SI and cloud consulting & SI and were launched in 1997.Read More
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Fox SportsIndustries
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28$10,000+50 - 249 employeesStanmore, EnglandMicromindercs is a Cybersecurity company. Launched in 2018, the team focuses on Cybersecurity and IT managed services.Read More
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29Undisclosed50 - 249 employeesStaines-upon-Thames, EnglandTDM Group is an IT managed services company. The Staines-upon-Thames, England-based agency was launched in 1997. Their team provides IT managed services and Cybersecurity.Read More
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30$1,000+10 - 49 employeesPurfleet, EnglandIT managed services company Euro Systems offers IT managed services and cloud consulting & SI. They were founded in 2009.Read More
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