Top 100 Penetration Testing Companies in London
The Best of October 2026Looking for a top penetration testing company in London?
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 London. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best London Penetration Testing Services
-
121$1,000+Freelancer employeesBiddenham, EnglandPeter Groom is an IT strategy consulting company. Their team is located in Biddenham, England. The company provides IT strategy consulting and Business Consulting.Read More
Industries
-
122$1,000+10 - 49 employeesLondon, EnglandRead More
SonicFast is a hosting solutions provider founded in 2015 in London and with about 5 employees on board. Their main services include cybersecurity, cloud consulting and systems integration, IT managed services, and business intelligence. They mostly cater to small businesses in telecommunications, IT, and gaming industries.
Industries
-
123Undisclosed250 - 999 employeesCroxley Green, EnglandLaunched in 2001, GCI is a data analytics company. The team offers BI & big data consulting & SI and cloud consulting & SI and is in Lincoln, England and Calder Grove, England.Read More
Industries
-
124Undisclosed10 - 49 employeesLondon, EnglandJUMPSEC Ltd is a Cybersecurity company founded in 2012. Their team specializes in Cybersecurity.Read More
-
125Undisclosed250 - 999 employeesLondon, EnglandExiger is an AI company. They offer Artificial Intelligence and Cybersecurity and were launched in 2013.Read More
-
126$5,000+2 - 9 employeesChalfont Saint Peter, EnglandBAT CODERS is a Cybersecurity company. Launched in 2011, the team offers Cybersecurity and Mobile App Development. The agency is based in Chalfont Saint Peter, England.Read More
-
127Undisclosed2 - 9 employeesCity of London, 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
Get connected with a company for free
Tell us about your project, and we'll match you with vetted companies that meet your requirements.
Get connected with the right company for you
We'll do the work for you – finding and connecting you with service providers that meet your exact requirements.
Schedule Consultation