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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91$1,000+10 - 49 employeesBishop's Stortford, EnglandGenmar (UK) Ltd is an IT managed services company. Established in 1996, the team offers IT managed services and cloud consulting & SI.Read More
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92$25,000+10 - 49 employeesLondon, EnglandElecti Consulting is an AI development company. Established in 2017, the team provides Artificial Intelligence and Blockchain. The agency is based in London, England and Λεμεσός, Cyprus.Read More
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93$25,000+10 - 49 employeesAltham, EnglandSundown Solutions is an IT managed services company. Founded in 2008, their team specializes in IT managed services and IT strategy consulting.Read More
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94$1,000+2 - 9 employeesKidderminster, EnglandForever Group is a Kidderminster, England-based unified communications consulting & SI company. Established in 2009, the team offers unified communications consulting & SI and IT managed services.Read More
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95$1,000+10 - 49 employeesSheffield, EnglandIT managed services company One2Call Ltd is in Sheffield, England. Their services include IT managed services and unified communications consulting & SI.Read More
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96Undisclosed10 - 49 employeesBirmingham, EnglandEquilibrium Security is a Birmingham, England-based Cybersecurity company. Their services include Cybersecurity and Corporate Training & Coaching.Read More
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97Undisclosed50 - 249 employeesCambridge, EnglandFeaturespace is an artificial intelligence company. Launched in 2008, the firm is based in Cambridge, England and London, England. Their services include Artificial Intelligence and Cybersecurity.Read More
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98Undisclosed50 - 249 employeesCity of London, EnglandCloudscape IT Support London is a midsize IT strategy consulting company in City of London, England and London, England. The team focuses on IT strategy consulting and cloud consulting & SI.Read More
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99Undisclosed50 - 249 employeesLondon , EnglandDarkbeam is a midsize Cybersecurity company launched in 2017. Their team specializes in Cybersecurity.Read More
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100$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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101Undisclosed10 - 49 employeesBromsgrove, EnglandIT strategy consulting company Technical Drive specializes in IT strategy consulting and cloud consulting & SI. They were established in 2008.Read More
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102$1,000+2 - 9 employeesPlymouth, EnglandWestbrook Communications Ltd is an IT managed services company. The Plymouth, England-based company was founded in 2000. Their services include IT managed services and IT strategy consulting.Read More
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103Undisclosed2 - 9 employeesGreenside, EnglandMunki computer Help, an IT strategy consulting company, was established in 2017. The firm specializes in IT strategy consulting and IT managed services.Read More
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104Undisclosed10 - 49 employeesCity of London, EnglandIT strategy consulting company Neos-IT was founded in 2001. The agency focuses on IT strategy consulting and cloud consulting & SI.Read More
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105Undisclosed10 - 49 employeesCity of London, EnglandPortman Tech, an IT strategy consulting company, was founded in 2004. The company specializes in IT strategy consulting and cloud consulting & SI.Read More
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106Undisclosed10 - 49 employeesLondon, EnglandOrpheus Cyber, a Cybersecurity company, is based in London, England and McLean, Virginia. The team focuses on Cybersecurity.Read More
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107Undisclosed50 - 249 employeesLondon, EnglandBovill is a Financial Consulting company. They are in London, England and Singapore, Singapore and have midsize team. They specialize in Financial Consulting and Blockchain.Read More
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108Undisclosed50 - 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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109$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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110$1,000+10 - 49 employeesExeter, EnglandIT Champion Ltd is an IT managed services company. The team specializes in IT managed services and IT strategy consulting and is in Exeter, England and London, England.Read More
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111$1,000+2 - 9 employeesSalford, EnglandLaunched in 2016, Defendza is a Cybersecurity company. The team provides Cybersecurity and IT strategy consulting.Read More
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112Undisclosed2 - 9 employeesHavant, EnglandCYBRID is an IT strategy consulting company. The team focuses on IT strategy consulting and cloud consulting & SI, and the agency is based in Havant, England and City of London, England.Read More
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113Undisclosed10 - 49 employeesManchester, EnglandHedgehog Security is a Cybersecurity company. The firm is in Manchester, England. Their services include Cybersecurity.Read More
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114Undisclosed250 - 999 employeesCity of London, EnglandCybersecurity company Adarma Security is located in Edinburgh, Scotland and City of London, England. Their services include Cybersecurity and BI & big data consulting & SI.Read More
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115Undisclosed250 - 999 employeesLondon, EnglandIntegrity360 is a Cybersecurity company. The Dublin 18, Ireland-based firm was founded in 2005. Their team provides Cybersecurity and IT managed services.Read More
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116Undisclosed2 - 9 employeesHorsham, EnglandCybersecurity company PocketSIEM is located in Horsham, England. They specialize in Cybersecurity and were established in 2019.Read More
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117Undisclosed10 - 49 employeesCity of London, EnglandCybersecurity and IT managed services company Connect Digital Security was launched in 2016. The team specializes in Cybersecurity and IT managed services.Read More
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118Undisclosed10 - 49 employeesCity of London, EnglandTipTop IT is an IT strategy consulting company. The small City of London, England-based team focuses on IT strategy consulting and cloud consulting & SI. The company was launched in 2008.Read More
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119$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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120Undisclosed2 - 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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