Top 100 Cybersecurity Companies in the United Kingdom
The Best of May 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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1Undisclosed50 - 249 employeesFarnborough, EnglandForesite Cybersecurity, a Cybersecurity company, was founded in 2013. They are in Overland Park, Kansas and Farnborough, England and have a midsize team. Their services include Cybersecurity, Compliance Consulting, cloud consulting & SI, and IT managed services.Read More
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2$5,000+10 - 49 employeesLondon, EnglandXRAY CyberSecurity is a Cybersecurity company. Their small team is based in London, England and Kyiv, Ukraine and offers Cybersecurity. The company was established in 2011.Read More
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Danone Carlsberg VEON SoftwareOneIndustries
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3$50,000+1,000 - 9,999 employeesBasingstoke, EnglandLaunched in 1999, Software Mind is an IT strategy consulting company. Their large team is headquartered in Kraków, Poland; Warszawa, Poland; Rzeszów, Poland and Bielsko-Biała, Poland and offers IT strategy consulting, cloud consulting & SI, Cybersecurity, Custom Software Development, and more.Read More
Clients
Backbase Baillie Gifford Branch CallcreditIndustries
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4$1,000+10 - 49 employeesHildenborough, EnglandRead More
RSK Cyber Security is a cybersecurity company. They are headquartered in Hildenborough, United Kingdom and Dubai, United Arab Emirates and have a small team. Their services include cybersecurity, cloud consulting & SI, web development, mobile app development, and more. The company was established in 2021.
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5$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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6$10,000+250 - 999 employeesLondon, EnglandRead 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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7$25,000+1,000 - 9,999 employeesLondon, EnglandELEKS is a software development company. Their large team is located in Tallinn, Estonia; L'viv, Ukraine; Berlin, Germany and Rzeszów, Poland. The company provides Custom Software Development, BI & big data consulting & SI, cloud consulting & SI, Cybersecurity, and more.Read More
Clients
BNY Mellon DPD Acino DRAXIndustries
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8$5,000+1,000 - 9,999 employeesLondon, EnglandRead More
ERRNA is a blockchain company founded in 2015. The small San Jose, California-based team provides blockchain, cybersecurity, marketing strategy, mobile app development, and more.
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9$5,000+10 - 49 employeesEdinburgh, ScotlandRead More
Founded in 2012, Texaport is an established and reputable managed service provider with a strong focus on security and customer service excellence. With headquarters located in Edinburgh, UK. Texaport also service areas throughout the UK including Glasgow, London, Manchester, Birmingham and surrounding areas. Texaport empower organisations with comprehensive managed services that combine, Exceptional customer service, strategic digital transformation and robust security solutions.
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10Undisclosed50 - 249 employeesLondon, EnglandBased in New York, New York; Amsterdam, Netherlands and London, England, BreachLock Inc is an Application Testing company. The midsize company was established in 2019. Their team offers Application Testing, Cybersecurity, and DevOps Managed Services.Read More
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11$10,000+250 - 999 employeesLondon, EnglandRead More
A1QA logo is a quality assurance and software testing company founded in 2002. Based in Denver, they have a team of 200+ employees that specialize in application testing and cybersecurity. They primarily serve midmarket clients in the IT and telecommunications industries.
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AdidasIndustries
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12$5,000+10 - 49 employeesClayton-le-Woods, EnglandHeadquartered in Clayton-le-Woods, England, FluidOne - Chorley is an IT managed services company. Founded in 2001, the small team offers IT managed services, IT strategy consulting, and Cybersecurity.Read More
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13Undisclosed50 - 249 employeesLondon, EnglandRead More
Sagiton is a business-oriented software house located in Wroclaw, Poland. The company was founded in 2010 and now employs a team of 48 people. Sagiton provides custom software development, cybersecurity, mobile app development, IT strategy consulting, marketing strategy, and web design services. Most of their clients are small businesses.
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TapWinWinIndustries
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14Undisclosed10 - 49 employeesLondon, EnglandRead More
HewardMills is a Data Protection Office (DPO) services company based in London with offices in Dublin, San Francisco, Berlin, and Zurich. The company has a team of more than 30 that provides business consulting, cybersecurity, and corporate training services to various companies.
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Monzo -
15$1,000+10 - 49 employeesLondon, EnglandRead More
Smartdesc is a London-based IT company with a team of fewer than 50 people. Founded in 2011, they offer IT strategy consulting, cloud consulting, and cybersecurity solutions for small and mid-market businesses, primarily non-profit organizations.
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MindIndustries
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16$50,000+50 - 249 employeesLondon, EnglandRead More
Vodworks is a London, United Kingdom-based data analytics company. They offer BI & big data consulting & SI, custom software development, broadcast video, IT strategy consulting, and more and were launched in 2011.
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17$1,000+10 - 49 employeesLondon, EnglandArticle Ten, a graphic design agency, was established in 2008. The firm specializes in Graphic Design, Cybersecurity, Video Production, Branding, and more and has a small team. The firm is headquartered in London, England.Read More
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18$50,000+1,000 - 9,999 employeesLeeds, EnglandRead More
Headquartered in Leeds, United Kingdom, BJSS is an IT consultancy with offices in London, New York, and Bristol and Manchester, U.K. Since 1993, their team of 750+ has specialized in custom software development, application testing, IT strategy consulting, and more for enterprise-level and midmarket clients.
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EuroclearIndustries
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19$25,000+50 - 249 employeesLondon, EnglandRead More
Esynergy is a big data analytics company. They are headquartered in London, United Kingdom and have a midsize team. Their services include BI & big data consulting & SI, cloud consulting & SI, custom software development, mobile app development, and more.
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20$1,000+10 - 49 employeesBradford on Avon, 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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21$1,000+10 - 49 employeesLondon, EnglandBaltum Bureau is a small Cybersecurity company. In Tallinn, Estonia; Tallinn, Estonia; London, England and Wilmington, Delaware, the firm was established in 2021. Their services include Cybersecurity, other IT consulting and SI, and Business Consulting.Read More
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22$1,000+2 - 9 employeesMiddlesbrough, EnglandNorth IT is a Middlesbrough, United Kingdom-based cybersecurity company. The small agency was launched in 2012. Their team specializes in cybersecurity.Read More
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23$1,000+10 - 49 employeesColden Common, EnglandRead More
Evalian is a small cybersecurity and business consulting company. Based in Colden Common, United Kingdom; London, United Kingdom and Worcester, United Kingdom, the firm was founded in 2017. Their team specializes in cybersecurity and business consulting.
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AlliantsIndustries
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24Undisclosed1,000 - 9,999 employeesLondon, EnglandRead More
BSI Group is an IT firm headquartered in London. Their midsized team specializes in cybersecurity, IT strategy consulting, and business consulting.
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MED49 -
25$25,000+10 - 49 employeesLondon, EnglandHEXENS is a London, United Kingdom-based cybersecurity company. The small company was established in 2021. Their team focuses on cybersecurity.Read More
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26$5,000+10 - 49 employeesSheffield, EnglandRead More
PAV I.T. Services is an IT company in Leeds and Burgess Hill, England. Founded in 1988, they have about 33 employees that serve mostly small-business and midmarket clients in the automotive, legal, and financial sectors. Services include IT managed services, cloud consulting, and IT strategy consulting.
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Stevensdrake solicitorsIndustries
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27$100,000+50 - 249 employeesAbbeymead, EnglandFounded in 2007, SN SKIES PRIVATE LIMITED is a midsize IT managed services company. Their services include IT managed services, cybersecurity, IT strategy consulting, custom software development, and more. The agency is located in Islamabad, Pakistan; رأس الخيمة, United Arab Emirates; Abbeymead, United Kingdom and Lahore, Pakistan.Read More
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28$1,000+10 - 49 employeesBournemouth, EnglandRead More
Cloudserve is a cloud solutions provider based in Bournemouth, England with an office in London. Founded in 2009, their team of fewer than 50 professionals offers IT managed services, IT strategy consulting, and cloud consulting & SI services for small and medium-sized businesses. They have experience working in various industries, including hospitality, financial services, and IT.
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FJB HotelsIndustries
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29$25,000+2 - 9 employeesFinchampstead, EnglandRead More
Melmac Solutions Limited is a cybersecurity company. Launched in 1995, the small agency is located in Finchampstead, United Kingdom. Their services include cybersecurity, blockchain, and financial advising & planning.
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30$5,000+250 - 999 employeesManchester, EnglandAress Software is an IT strategy consulting company. Their midsize team is in Nashik, India; Manchester, England; Woburn, Massachusetts and Pune, India and provides IT strategy consulting, cloud consulting & SI, CRM consulting and SI, Cybersecurity, and more. The agency was founded in 1999.Read More
Industries
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