Top 100 Network Security Companies in the United Kingdom
The Best of April 2026Looking for a top network security firm in the United Kingdom?
Network security is critical for businesses. Protecting sensitive data and preserving trust are top priorities. Network security companies offer services like threat detection, encryption, assessments, and incident response planning. By partnering with these experts, businesses can fortify their defenses and maintain their reputation in the face of evolving cyber threats.
To assist you in your search for a partner, we’ve compiled this list of the top network security service providers in United Kingdom. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best United Kingdom Network Security Providers
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31$5,000+10 - 49 employeesLondon, EnglandLaunched in 1999, Lucidica is an IT managed services company. The agency offers IT managed services and Cybersecurity.Read More
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32$1,000+2 - 9 employeesAltrincham, EnglandCyphere is a small Application Testing company. Launched in 2020, the team focuses on Application Testing and Cybersecurity.Read More
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33Undisclosed10 - 49 employeesManchester, EnglandNetMonkeys Ltd is a small IT managed services company established in 2003. Their services include IT managed services and Cybersecurity.Read More
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34Undisclosed50 - 249 employeesLiverpool, EnglandMidsize Cybersecurity company IriusRisk, is headquartered in Alpharetta, Georgia and Liverpool, England. The team specializes in Cybersecurity and Artificial Intelligence.Read More
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35$5,000+10 - 49 employeesChatham, EnglandFounded in 2009, Ivinco is a small Cybersecurity company. Their services include Cybersecurity and IT managed services.Read More
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36$10,000+2 - 9 employeesLiverpool, EnglandHalcyon IT Services ltd is a Cybersecurity company founded in 2023. In Liverpool, England, the team provides Cybersecurity and IT managed services.Read More
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37$5,000+2 - 9 employeesLondon, EnglandStabilise, a big data analytics company, was founded in 2025. The company offers BI & big data consulting & SI and Cybersecurity.Read More
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38$1,000+10 - 49 employeesOxford, EnglandWeb development firm OWA Digital is based in Oxford, England and Fitzrovia, London, England. Their services include Web Development and Mobile App Development.Read More
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39$1,000+2 - 9 employeesEast Kilbride, ScotlandIteko ltd is an IT strategy consulting company. The East Kilbride, Scotland-based firm was founded in 2022. Their services include IT strategy consulting and Cybersecurity.Read More
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40$1,000+10 - 49 employeesLondon, EnglandField Tech Services LTD is an IT managed services company. The firm is located in London, England. Their services include IT managed services and IT strategy consulting.Read More
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41Undisclosed10 - 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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42$1,000+2 - 9 employeesLondon, EnglandCybersecurity company Dreadsec Ltd is headquartered in London, England. The team offers Cybersecurity.Read More
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43Undisclosed2 - 9 employeesLondon, EnglandSeltech IT Services Ltd is a cloud consulting & SI company. They were founded in 2011 and focus on cloud consulting & SI and Cybersecurity.Read More
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44$250,000+50 - 249 employeesLondon, EnglandFounded in 2019, ParsBiz is an advertising company. Their midsize team is in Santa Monica, California; Paris, France; München, Germany and Madrid, Spain. Their team provides advertising, branding, social media marketing, content marketing, and more.Read More
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45Undisclosed10 - 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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46$1,000+2 - 9 employeesGreenfield, EnglandBased in Greenfield, England, KEEP Information Security Services is a Cybersecurity company. They provide Cybersecurity and IT strategy consulting and were launched in 2014.Read More
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47Undisclosed10 - 49 employeesLondon, EnglandNetwork Squad LTD is an IT strategy consulting company in London, England. They focus on IT strategy consulting and cloud consulting & SI.Read More
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48$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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49Undisclosed50 - 249 employeesEly, EnglandGRC Solutions is an IT strategy consulting company headquartered in Ely, England. They specialize in IT strategy consulting and Cybersecurity.Read More
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50Undisclosed10 - 49 employeesStretford, EnglandCybersecurity company Aspire IT Services Ltd focuses on Cybersecurity and IT managed services. They are located in Stretford, England.Read More
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51$1,000+2 - 9 employeesAnlaby, EnglandHeadquartered in Anlaby, England, Pera Prometheus Consulting Ltd is a Cybersecurity and Business Continuity Management company. The team offers Cybersecurity and Business Continuity Management.Read More
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52Undisclosed50 - 249 employeesLondon , EnglandPenguin Commercial Limited, a Corporate Travel Management company, is located in London , England. The team focuses on Corporate Travel Management and IT managed services.Read More
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53Undisclosed2 - 9 employeesLondon, EnglandCyberstrategix Consulting is a Cybersecurity company. The agency is located in London, England. Their team offers Cybersecurity.Read More
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54$5,000+250 - 999 employeesCardiff, WalesEstablished in 1995, ARO is an IT managed services company. The company specializes in IT managed services and unified communications consulting & SI, and is midsize.Read More
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55Undisclosed2 - 9 employeesDoncaster, EnglandHolistic IT Ltd is an IT strategy consulting company. They are located in Doncaster, England, and their services include IT strategy consulting and cloud consulting & SI.Read More
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56Undisclosed10 - 49 employeesLondon, EnglandS3M Security is a London, England-based Cybersecurity and software development firm. They provide Cybersecurity and Custom Software Development and were founded in 2016.Read More
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57$50,000+10 - 49 employeesBrentford, EnglandFindErnest is a web design company. The firm is based in Hyderabad, India and Brentford, England. Their services include Web Design and UX/UI Design.Read More
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58$1,000+10 - 49 employeesLondon, EnglandSocium is a small London, England-based IT strategy consulting company. Their services include IT strategy consulting and IT managed services.Read More
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59$10,000+10 - 49 employeesBirmingham, EnglandEstablished in 2018, Slink is an IT managed services company. The team focuses on IT managed services and Cybersecurity and is in Birmingham, England.Read More
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60$5,000+50 - 249 employeesPortishead, EnglandIT managed services company Chorus provides IT managed services and CRM consulting and SI. They were launched in 1999.Read More
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