Top 100 Cybersecurity Companies in the United Kingdom

Founded in 2005, Intelligent IT Solutions is an IT managed services company. Their small team is located in Cardiff , United Kingdom and focuses on IT managed services, IT strategy consulting, cloud consulting & SI, and cybersecurity.

Halexo is a midsize Dehiwala-Mount Lavinia, Sri Lanka-based IT staff augmentation company. They provide IT staff augmentation, IT strategy consulting, and cybersecurity and were launched in 2016.

Link Group Global, inc. Is an Austin, Texas-based human resources agency. The midsize company was established in 2015. Their services include HR services, IT managed services, and IT staff augmentation.

Lucid Networks Ltd is an IoT development company. The Edinburgh , United Kingdom-based company was established in 2007. The small team specializes in IoT development, cybersecurity, cloud consulting & SI, and IT managed services.

Stock IT Ltd is an IT managed services company. They offer IT managed services, web design, and cybersecurity and were established in 2003. Their small team is Newport, United Kingdom-based.

A1QA logo is a quality assurance and software testing company founded in 2002. Based in Denver, they have a team of 200+ employees that specialize in application testing and cybersecurity. They primarily serve midmarket clients in the IT and telecommunications industries.

Veracode is a cybersecurity company based in Burlington, Massachusetts; London, United Kingdom and Boston, . The firm provides cybersecurity, application testing, and IT strategy consulting and has a midsize team.The firm was founded in 2006.

Cybereason is a cybersecurity company launched in 2012. Their midsize team is in Boston, Massachusetts; London, United Kingdom and Tel-Aviv, Israel. The agency specializes in cybersecurity, BI & big data consulting & SI, and IT strategy consulting.

Based in Newry, United Kingdom and Mohali, Punjab, , India, RKM Software is a custom software development company. They focus on custom software development, cybersecurity, mobile app development, customer service outsourcing, and more and were established in 2012.

Secureworks is a large cybersecurity company. They offer cybersecurity and were established in 1999.

Auxilium Curo Ltd, an IT managed services company, is in Thorpe-le-Soken, United Kingdom. The small team provides IT managed services, cybersecurity, and compliance consulting. The company was founded in 2020.

Voyager Networks is a small IT managed services company. Founded in 1993, the team focuses on IT managed services, enterprise app modernization, cybersecurity, and other IT consulting and SI. The company is based in Aldermaston, United Kingdom.

Established in 1997, SilverSky is a cybersecurity company. The midsize team provides cybersecurity. The company is based in Morrisville, North Carolina; Milford, Connecticut; Mount Laurel Township, New Jersey and Belfast, United Kingdom.

Established in 2004, Numata Business IT is an IT strategy consulting company. The company offers IT strategy consulting, cloud consulting & SI, cybersecurity, and IT managed services and has a midsize team. The company is headquartered in Randburg, South Africa; Limerick, Ireland and London, United Kingdom.

Small cloud consulting & SI company Fingertip Solutions, is headquartered in Failsworth, United Kingdom. They focus on cloud consulting & SI, IT managed services, cybersecurity, IT strategy consulting, and more and were founded in 2005.

Titan Network Services is an IT managed services company. They are in Manchester, United Kingdom and have a small team. Their team specializes in IT managed services, other IT consulting and SI, cloud consulting & SI, and cybersecurity.

Logical Microsystems is a Bradford, United Kingdom-based big data company. The small team focuses on BI & big data consulting & SI, cloud consulting & SI, IT managed services, cybersecurity, and more. The company was launched in 1984.

D-Wall IT Solutions Ltd is a small City of London, United Kingdom-based web design agency. They provide web design, IT strategy consulting, cybersecurity, IT managed services, and more and were launched in 2021.

HAXR is a small blockchain company founded in 2021. Their team specializes in blockchain, cybersecurity, and blockchain marketing. The firm is based in London, United Kingdom.

IP Four Digital Limited is a small IT managed services company established in 2020. Their team focuses on IT managed services, cloud consulting & SI, cybersecurity, and compliance consulting. The firm is headquartered in Burnley, United Kingdom.

S-branch is an IT strategy consulting company. Established in 2018, the small agency is based in Hook Norton, United Kingdom. Their team specializes in IT strategy consulting, BI & big data consulting & SI, cloud consulting & SI, CRM consulting and SI, and more.

Founded in 2019, ParsBiz is an advertising company. Their midsize team is in Santa Monica, California; Paris, France; München, Germany and Madrid, Spain. Their team provides advertising, branding, social media marketing, content marketing, and more.

Launched in 2004, StoneTurn is a midsize business consulting company based in Boston, Massachusetts; New York, New York; Dallas, Texas and Los Angeles, California. Their services include business consulting, cybersecurity, business valuation services, corporate law, and more.

YBUGS is a digital strategy company located in London, United Kingdom and Lahore, Pakistan. The small team offers digital strategy, social media marketing, search engine optimization, ux/ui design, and more and was established in 2023.

Excis Compliance, an IT strategy consulting company, is based in Bracknell, United Kingdom; Navi Mumbai, India; Tananarive, Madagascar and Cape Town, South Africa. The large firm was established in 2001. Their team specializes in IT strategy consulting, cloud consulting & SI, cybersecurity, IT managed services, and more.

ONEiO is a cybersecurity company. Their midsize team is based in Helsinki, Finland; London, United Kingdom; Oberursel (Taunus), Germany and Atlanta, Georgia. The agency offers cybersecurity, IT managed services, custom software development, enterprise app modernization, and more.

Absolute Networks is a small IT managed services company. Based in Derby, United Kingdom and Mumbai, India, the firm was established in 2003. Their services include IT managed services, cloud consulting & SI, and cybersecurity.

Guidance Software is a software development firm that has been in operation since 1997. They are headquartered in Pasadena, Calif. and they have additional offices in Slough, U.K., Courbevoie, France, Waukesha, Wis., Rosemont, Ill., Dulles, Va., and New York. They have over 800 employees and they specialize in cybersecurity, IT strategy consulting, and IT staff augmentation. Their clients generally work in consumer services, government, or healthcare.

Herjavec Group is an IT managed services company in Toronto, Canada; West Hollywood, California and Reading , United Kingdom. Founded in 2003, the midsize team specializes in IT managed services, cybersecurity, and IT strategy consulting.

HTG is an IT managed services company. The small team is in South Shields , United Kingdom. Their services include IT managed services, IT strategy consulting, cloud consulting & SI, cybersecurity, and more.