Top 70 Application Security Companies in the United Kingdom
The Best of December 2025Looking for a top application security company in the United Kingdom?
With their in-depth knowledge of application security principles, penetration testing techniques, and security compliance standards, application security services help businesses identify and address security vulnerabilities before malicious actors exploit them. By collaborating with application security professionals, companies can enhance the resilience of their software infrastructure, build trust with their customers, and maintain a strong security posture in today's digital age.
To assist you in your search for a partner, we’ve compiled this list of the top application security vendors in United Kingdom. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best United Kingdom Application Security Services
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31$5,000+50 - 249 employeesPortishead, EnglandIT strategy consulting company Chorus was established in 1999. The team focuses on IT strategy consulting and Cybersecurity.Read More
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32$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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33Undisclosed1,000 - 9,999 employeesLondon, EnglandK2 Partnering Solutions is a CRM consulting and SI company. They are headquartered in London, England, and their services include CRM consulting and SI and ERP consulting and SI.Read More
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34$1,000+10 - 49 employeesLondon, EnglandEstablished in 2018, Ictnet Limited is a small IT strategy consulting company. Their team offers IT strategy consulting and BI & big data consulting & SI.Read More
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35$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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36Undisclosed50 - 249 employeesNottingham, EnglandNexor is a Cybersecurity company. The firm is based in Nottingham, England. Their services include Cybersecurity and IT managed services.Read More
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37$1,000+10 - 49 employeesLeeds, EnglandLaunched in 2011, Sycom Integrated Solutions LTD is a small Leeds, England-based IT strategy consulting company. Their services include IT strategy consulting and cloud consulting & SI.Read More
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38Undisclosed2 - 9 employeesLeigh, EnglandExpress IT is a small IT strategy consulting company. Founded in 2011, the team provides IT strategy consulting and cloud consulting & SI.Read More
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39$1,000+10 - 49 employeesMiddlesbrough, EnglandCyberSol360, a cloud consulting & SI company, was launched in 2022. The small team provides cloud consulting & SI and Cybersecurity.Read More
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40$5,000+10 - 49 employeesLondon, EnglandExact Solutions is a London, England-based IT managed services company. Their services include IT managed services and cloud consulting & SI.Read More
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41$1,000+10 - 49 employeesStoke Gifford, EnglandCybersecurity company CloudBound Systems was launched in 2023. The agency focuses on Cybersecurity and IT managed services.Read More
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42$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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43Undisclosed2 - 9 employeesLondon, EnglandIn London, England, The Hack Angels Recoveries Company is a small Cybersecurity company. The team focuses on Cybersecurity and IT managed services.Read More
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44Undisclosed10 - 49 employeesManchester, EnglandCybersecurity company Secarma Ltd was founded in 2001. The team provides Cybersecurity and IoT development.Read More
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45Undisclosed50 - 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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46Undisclosed50 - 249 employeesPortsmouth, EnglandSearchlight Cyber is a Cybersecurity company. They are based in Portsmouth, England and have midsize team. They focus on Cybersecurity.Read More
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47$1,000+10 - 49 employeesDartford, EnglandCloudBunch is a cloud consulting & SI company located in Dartford, England. Launched in 2021, the team provides cloud consulting & SI and IT staff augmentation.Read More
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48$1,000+2 - 9 employeesBirmingham, EnglandForfend Information Security Ltd is an IT strategy consulting company. The team provides IT strategy consulting and cloud consulting & SI, and the company is located in Birmingham, England.Read More
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49Undisclosed10 - 49 employeesLondon, EnglandLaunched in 2014, ConvergentDS LLC is a small Cybersecurity company. Their services include Cybersecurity and IT strategy consulting.Read More
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50Undisclosed2 - 9 employeesGainsborough, EnglandCybersecurity company Practical Infosec is based in Gainsborough, England. They specialize in Cybersecurity.Read More
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51Undisclosed250 - 999 employeesBirmingham, EnglandResillion, an Application Testing company, was launched in 2022. The midsize team focuses on Application Testing and Computer Engineering.Read More
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52Undisclosed10 - 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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53Undisclosed2 - 9 employeesManchester, EnglandSectech Solutions is a branding agency. The firm is based in Manchester, England. Their services include Branding and Public Relations.Read More
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54Undisclosed10 - 49 employeesBirmingham, EnglandOmniCyber Security is a Cybersecurity company founded in 2015. Their team offers Cybersecurity and IT managed services.Read More
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55Undisclosed2 - 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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56Undisclosed2 - 9 employeesCity of London, EnglandJAW Consulting UK is a Cybersecurity company. They were launched in 2008, and their services include Cybersecurity and IT managed services.Read More
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57Undisclosed50 - 249 employeesHindley, EnglandOltec Group, a midsize Commercial Property Management company, is headquartered in Hindley, England. The team focuses on Commercial Property Management and Cybersecurity.Read More
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58Undisclosed2 - 9 employeesCity of London, EnglandCybersecurity company Defensity was launched in 2019. The team specializes in Cybersecurity and IT strategy consulting.Read More
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59UndisclosedFreelancer employeesThurmaston, EnglandPactum Consulting Ltd, a Cybersecurity company, is based in Thurmaston, England. The team provides Cybersecurity and IT managed services.Read More
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60Undisclosed10 - 49 employeesCity of London, EnglandHeadquartered in City of London, England and Dehradun, India, RedHunt Labs is a small Cybersecurity company. Their services include Cybersecurity and BI & big data consulting & SI.Read More
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