Top 100 Penetration Testing Companies in England
The Best of December 2025Looking for a top penetration testing company in England?
Having vulnerable security poses a threat to your organization. In an age where data has become some of the most important assets that your company will have, improving security measures is always a must. Penetration testing aims to solve this problem by simulating real-life security breaches without the risk of an actual cyberattack. Also known as ethical hacking, this process helps identify weak spots within your IT network infrastructure by applying methods that real attackers would use.
A penetration testing company can assist you in determining your security vulnerabilities. Doing so will provide you with the information that you need to fortify your cybersecurity. Hiring the right penetration testing company can give you a significant advantage in safekeeping your virtual assets.
To assist you in your search for a partner, we’ve compiled this list of the top penetration testing services in England. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best England Penetration Testing Services
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61$5,000+10 - 49 employeesBury St Edmunds, EnglandIT managed services company Green Duck is headquartered in Bury St Edmunds, England. Founded in 2002, the team offers IT managed services and Cybersecurity.Read More
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62$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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63Undisclosed250 - 999 employeesCity of London, EnglandNetwrix Corporation is a Frisco, Texas-based IT strategy consulting company. Established in 2006, the team specializes in IT strategy consulting and Cybersecurity.Read More
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64$1,000+10 - 49 employeesLondon, England360 Softtec is a London, England-based IT managed services company. They provide IT managed services and Cybersecurity and were launched in 2003.Read More
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65$1,000+10 - 49 employeesLondon, EnglandIG-Smart Ltd is a Cybersecurity company. Their team is located in London, England. The company specializes in Cybersecurity and IT managed services.Read More
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66Undisclosed10 - 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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67Undisclosed2 - 9 employeesSileby, EnglandBetter IT is an IT strategy consulting company. Their team is headquartered in Sileby, England and Sileby, England and offers IT strategy consulting and cloud consulting & SI.Read More
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68Undisclosed10 - 49 employeesNewcastle upon Tyne, EnglandThe Unite Group is an IT managed services company. Based in Newcastle upon Tyne, England, their small team focuses on IT managed services and Call Center Services. The agency was established in 2011.Read More
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69Undisclosed10 - 49 employeesLondon, EnglandHeadquartered in London, England, Darklabs is a small Cybersecurity company. Their services include Cybersecurity.Read More
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70Undisclosed10 - 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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71$1,000+2 - 9 employeesNew Malden, EnglandVMR Check is a small IT strategy consulting company in New Malden, England and Southall, England. The team specializes in IT strategy consulting and cloud consulting & SI.Read More
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72Undisclosed10 - 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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73Undisclosed50 - 249 employeesFarnborough, EnglandRead More
Midsize Cybersecurity company Foresite Cybersecurity, is located in Overland Park, Kansas and Farnborough, England. Established in 2013, the team provides Cybersecurity, Compliance Consulting, cloud consulting & SI, and IT managed services.
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74$1,000+50 - 249 employeesSevenoaks, EnglandAkita is an IT managed services company. The team is headquartered in Sevenoaks, England and London, England, and their services include IT managed services and cloud consulting & SI.Read More
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75$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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76Undisclosed50 - 249 employeesLondon, EnglandLaunched in 2011, ThreatSpike Labs is a midsize Cybersecurity company based in London, England. Their team specializes in Cybersecurity.Read More
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77$1,000+10 - 49 employeesLondon, EnglandLaunched in 2019, Techsub.IT is an IT strategy consulting company. The agency offers IT strategy consulting and cloud consulting & SI, and is small.Read More
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78Undisclosed10 - 49 employeesBirmingham, EnglandIT managed services company Moremicro was established in 2014. Based in Birmingham, England, the team offers IT managed services and IT strategy consulting.Read More
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79$5,000+10 - 49 employeesLondon, EnglandWeSeeNow is an IT managed services company. Their team is headquartered in London, England and Leeds, England. The firm focuses on IT managed services and IT strategy consulting.Read More
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80$5,000+50 - 249 employeesBath, EnglandIT managed services company Westgate IT is in Bath, England and Avon, England. They offer IT managed services and cloud consulting & SI.Read More
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81Undisclosed10 - 49 employeesRuddington, EnglandCybersecurity company IK IT Solutions was established in 2020. The team specializes in Cybersecurity and IT managed services.Read More
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82$10,000+2 - 9 employeesWelwyn, EnglandColibri Digital, an artificial intelligence firm, was launched in 2015. The agency specializes in Artificial Intelligence and BI & big data consulting & SI, and is small.Read More
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83Undisclosed10 - 49 employeesWalton-on-Thames, EnglandET Works is an IT strategy consulting company based in Walton-on-Thames, England and Hokksund, Norway. Their services include IT strategy consulting and cloud consulting & SI.Read More
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84Undisclosed50 - 249 employeesGloucestershire, EnglandRipjar is an AI development company. Established in 2012, the firm is based in Gloucestershire, England. Their services include Artificial Intelligence and BI & big data consulting & SI.Read More
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85Undisclosed50 - 249 employeesDoncaster, EnglandDigitalXRAID is a cloud consulting & SI and Cybersecurity company. The Doncaster, England-based company provides cloud consulting & SI and Cybersecurity.Read More
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86Undisclosed50 - 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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87Undisclosed10 - 49 employeesCity of London, EnglandISTARI, a Cybersecurity company, was established in 2020. The team provides Cybersecurity and IT managed services.Read More
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88$1,000+10 - 49 employeesAltrincham, EnglandElite IT Team is an Altrincham, England-based SEO agency. They offer Search Engine Optimization and Web Design.Read More
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89$5,000+2 - 9 employeesLetchworth, EnglandIT managed services company Edge IT was founded in 2012. The team provides IT managed services and Cybersecurity and is located in Letchworth, England.Read More
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90$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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