Top 100 Penetration Testing Companies in the United Kingdom

Online Business Systems is an IT strategy consulting company located in Winnipeg, Canada and Bloomington, Minnesota. The midsize team specializes in IT strategy consulting and business consulting. The firm was established in 1986.

Cybersecurity company Superfast IT is in Stourbridge, United Kingdom. The small firm was founded in 2002. Their team provides cybersecurity, IT managed services, IT strategy consulting, and cloud consulting & SI.

Deplogy is a small artificial intelligence company and cybersecurity company. Headquartered in Birmingham, United Kingdom, the company was launched in 2013. Their team provides Artificial Intelligence and cybersecurity.

Founded in 2015, Data Compliance Group Ltd is a cybersecurity and compliance consulting company. Based in London, United Kingdom, their small team focuses on cybersecurity and compliance consulting.

Neos-IT is a small IT strategy consulting company. Founded in 2001, the team provides IT strategy consulting, cloud consulting & SI, cybersecurity, and IT managed services. The firm is based in City of London, United Kingdom.

Based in City of London, United Kingdom, Portman Tech is a IT strategy consulting company. They focus on IT strategy consulting, cloud consulting & SI, cybersecurity, and IT managed services and were launched in 2004.

Appsecco, a small cybersecurity company, is headquartered in City of London, United Kingdom. They offer cybersecurity and were launched in 2015.

Cybersecurity company Orpheus Cyber was founded in 2017. They are located in London, United Kingdom and McLean, Virginia and have a small team. Their services include cybersecurity.

Custom software development company ST Engineering Antycip was founded in 1996. Their small team is located in Argenteuil, France; Saronno, Italy and Adderbury, United Kingdom. ST Engineering Antycip offers custom software development, AR/VR development, and cybersecurity.

Launched in 1999, Bovill is a business consulting company. They are located in London, United Kingdom; Singapore, Singapore; Hong Kong, Hong Kong and New York, New York and have a midsize team. Their services include business consulting, blockchain, and cybersecurity.

Red Helix is a cybersecurity company based in Aylesbury, United Kingdom. The midsize team specializes in cybersecurity, IT managed services, and application testing. The agency was established in 1984.

Forfusion, a midsize IT managed services company, is headquartered in Wallsend, United Kingdom. Their services include IT managed services, IT strategy consulting, cybersecurity, cloud consulting & SI, and more.

CyberWhite Limited is a cybersecurity company. Their small team is headquartered in Sunderland, United Kingdom and provides cybersecurity, IT managed services, other IT consulting and SI, and IT strategy consulting. The agency was established in 2018.

Headquartered in Salford, United Kingdom, Defendza is a cybersecurity company. The small firm was launched in 2016. Their team offers cybersecurity and IT strategy consulting.

Cloud consulting & SI and cybersecurity company Vertical Structure is located in Belfast, United Kingdom. The small team offers cloud consulting & SI and cybersecurity and was founded in 2006.

CYBRID, a IT strategy consulting company, was founded in 2017. They are based in Havant, United Kingdom and City of London, United Kingdom and have a small team. Their services include IT strategy consulting, cloud consulting & SI, cybersecurity, and IT managed services.

Hashedout Development, a cybersecurity company, is located in Portsmouth, United Kingdom. The small team focuses on cybersecurity, IT managed services, e-commerce development, and devops managed services. The agency was founded in 2023.

HookPhish is a small cybersecurity company launched in 2024. Their services include cybersecurity. The agency is headquartered in London, United Kingdom.

Infosec Partners, a cybersecurity company, is in Whitchurch, United Kingdom. Founded in 2004, the small team specializes in cybersecurity.

Headquartered in Edinburgh, United Kingdom, Blockchain Technology Partners Limited is a small cybersecurity company. Launched in 2018, the team focuses on cybersecurity, IT strategy consulting, and IT managed services.

In London, United Kingdom, Phoenix Security is a small cybersecurity company. Founded in 2021, the team offers cybersecurity.

Redscan is a midsize cloud consulting & SI company. They specialize in cloud consulting & SI, cybersecurity, and other IT consulting and SI and were established in 2015. The company is located in London, United Kingdom.

Adarma Security, a cybersecurity company, is located in Edinburgh, United Kingdom and City of London, United Kingdom. They focus on cybersecurity, BI & big data consulting & SI, and business valuation services and were launched in 2009.

Suntel Analytics, LLC is a West Palm Beach, Florida-based AI development company. Launched in 2022, the small team focuses on Artificial Intelligence, business consulting, corporate training, ai consulting, and more.

Founded in 2018, Trace is a cybersecurity company. Their small team is based in Edinburgh, United Kingdom. Their team offers cybersecurity, IT strategy consulting, custom software development, and BI & big data consulting & SI.

Launched in 2020, Vanguard Cyber Security Ltd is a cybersecurity company. They are in Jarrow, United Kingdom and have a small team. The agency provides cybersecurity.

Launched in 2021, CyPro is a cybersecurity company. Their small team is based in City of London, United Kingdom. Their services include cybersecurity.

PocketSIEM is a cybersecurity company launched in 2019. Their small team is based in Horsham, United Kingdom. The firm specializes in cybersecurity.

CloudCoCo Plc, a midsize IT managed services company, is headquartered in Warrington, United Kingdom and Birstall, United Kingdom. They provide IT managed services, cybersecurity, cloud consulting & SI, and IT strategy consulting and were founded in 2004.

Connect Digital Security is a cybersecurity and IT managed services company. The small City of London, United Kingdom-based team focuses on cybersecurity and IT managed services. The agency was established in 2016.