Top 100 Cybersecurity Companies in the United Kingdom
The Best of February 2026Looking for a top cybersecurity consultant in the United Kingdom?
Check out our list of the best cybersecurity consulting companies to choose a partner that can secure your company. Preventing data breaches should be the top security priority for all businesses in the digital age.
To assist you in your search for a partner, we’ve compiled this list of the top cybersecurity consulting companies in United Kingdom. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
Jump to Most Reviewed Companies
List of the Best United Kingdom Cybersecurity Consultants
-
301$5,000+50 - 249 employeesLondon, EnglandIOActive is a Cybersecurity company. Located in Seattle, Washington and London, England, the agency was launched in 1998. Their team focuses on Cybersecurity.Read More
Industries
-
302$10,000+250 - 999 employeesCourbevoie, FranceGuidance Software is a Cybersecurity company. Their midsize team is based in Pasadena, California and New York, New York. Their services include Cybersecurity and IT strategy consulting.Read More
Clients
BoxIndustries
-
303$10,000+1,000 - 9,999 employeesTheale, EnglandRapid7 is a Cybersecurity company. Their large team is in Boston, Massachusetts and Manhattan Beach, California. Their services include Cybersecurity and IT managed services.Read More
Industries
-
304$10,000+250 - 999 employeesLondon, EnglandCybereason is a Cybersecurity company. They are in Boston, Massachusetts and London, England, and their services include Cybersecurity and BI & big data consulting & SI.Read More
Industries
-
305$10,000+250 - 999 employeesLondon, EnglandDigital Guardian, a midsize IT managed services company, is in Waltham, Massachusetts and Reston, Virginia. The team specializes in IT managed services and Cybersecurity.Read More
Industries
-
306$10,000+250 - 999 employeesLondon, EnglandVeracode is a Cybersecurity company located in Burlington, Massachusetts and London, England. They focus on Cybersecurity and Application Testing and were established in 2006.Read More
Industries
-
307$5,000+50 - 249 employeesBirstall, EnglandSec-1 is an IT managed services and Cybersecurity company. Launched in 2001, the firm is based in Birstall, England. Their team focuses on IT managed services and Cybersecurity.Read More
Industries
-
308$5,000+50 - 249 employeesTheale, EnglandClearswift is a Cybersecurity company. Their midsize team is based in Theale, England and provides Cybersecurity. The agency was founded in 1982.Read More
-
309Undisclosed2 - 9 employeesLeicester , EnglandBerea is a Cybersecurity company. The team focuses on Cybersecurity, and the agency is headquartered in Leicester , England.Read More
-
310$1,000+1,000 - 9,999 employeesLondon, EnglandEmagine Consulting is a big data analytics company headquartered in London, England and Nanterre, France. They focus on BI & big data consulting & SI and Cybersecurity and were launched in 1994.Read More
Industries
-
311$5,000+50 - 249 employeesLondon, EnglandLaunched in 2011, Digital Shadows is a Cybersecurity company. The midsize team specializes in Cybersecurity.Read More
-
312$1,000+2 - 9 employeesSalford, EnglandLaunched in 2016, Defendza is a Cybersecurity company. The team provides Cybersecurity and IT strategy consulting.Read More
-
313Undisclosed50 - 249 employeesLondon, EnglandRavelin Technology is an AI company and Cybersecurity company. They were launched in 2014, and their services include Artificial Intelligence and Cybersecurity.Read More
-
314Undisclosed50 - 249 employeesBishop’s Stortford, EnglandSeceon Inc. Is a midsize artificial intelligence firm and Cybersecurity company. Launched in 2014, the team focuses on Artificial Intelligence and Cybersecurity.Read More
-
315Undisclosed10 - 49 employeesEdinburgh, ScotlandEstablished in 2018, Blockchain Technology Partners Limited is a small Edinburgh, Scotland-based Cybersecurity company. Their services include Cybersecurity and IT strategy consulting.Read More
-
316Undisclosed10 - 49 employeesCity of London, EnglandISTARI, a Cybersecurity company, was established in 2020. The team provides Cybersecurity and IT managed services.Read More
-
317Undisclosed2 - 9 employeesCity of London, EnglandCybersecurity company Identiom Limited is headquartered in City of London, England. Their services include Cybersecurity and IT managed services.Read More
-
318Undisclosed50 - 249 employeesCity of London, EnglandCrossword Cybersecurity Plc is a Cybersecurity company. The City of London, England-based agency was founded in 2014. Their team offers Cybersecurity and IT managed services.Read More
-
319Undisclosed10 - 49 employeesBishops Cleeve, EnglandDark Rhino Security, a Cybersecurity company, is in Dublin, Ohio and Bishops Cleeve, England. Launched in 2017, the team focuses on Cybersecurity.Read More
-
320Undisclosed250 - 999 employeesBelfast, Northern IrelandSilverSky is a Cybersecurity company. They are headquartered in Morrisville, North Carolina and Milford, Connecticut. Their team offers Cybersecurity.Read More
-
321Undisclosed1,000 - 9,999 employeesLondon, EnglandEstablished in 1999, Secureworks is a large Atlanta, Georgia-based Cybersecurity company. Their services include Cybersecurity.Read More
-
322Undisclosed50 - 249 employeesLondon, EnglandLaunched in 2011, ThreatSpike Labs is a midsize Cybersecurity company based in London, England. Their team specializes in Cybersecurity.Read More
-
323Undisclosed250 - 999 employeesOxford, EnglandNominet is an Oxford, England-based Cybersecurity company. Launched in 1996, the team specializes in Cybersecurity.Read More
-
324Undisclosed10 - 49 employeesLondon, EnglandHeadquartered in London, England, Darklabs is a small Cybersecurity company. Their services include Cybersecurity.Read More
-
325Undisclosed250 - 999 employeesOldbury, EnglandA&O IT Group is a Cybersecurity company headquartered in Oldbury, England. They focus on Cybersecurity and were founded in 1963.Read More
-
326Undisclosed250 - 999 employeesCity of London, EnglandLaunched in 2014, Contino is a cloud consulting & SI and Cybersecurity company. The company focuses on cloud consulting & SI and Cybersecurity, and is midsize.Read More
-
327Undisclosed250 - 999 employeesLondon, EnglandKocho is a Cybersecurity and IT managed services company founded in 2001. The midsize team offers Cybersecurity and IT managed services.Read More
-
328Undisclosed10 - 49 employeesCity of London, EnglandAppsecco is a Cybersecurity company launched in 2015. The company provides Cybersecurity.Read More
-
329Undisclosed50 - 249 employeesLondon , EnglandDarkbeam is a midsize Cybersecurity company launched in 2017. Their team specializes in Cybersecurity.Read More
-
330Undisclosed2 - 9 employeesCity of London, EnglandEstablished in 2013, Cyber Sentinel is a Cybersecurity company. The agency specializes in Cybersecurity, and is small.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 ConsultationMost Reviewed Cybersecurity Company in United Kingdom
Check out a Cybersecurity Company in United Kingdom with the most new reviews in the past 12 months.
Most Reviewed
Cybersecurity Company
United Kingdom
- 11 1 new reviews
- 12 1 new reviews
- 13 1 new reviews
- 14 1 new reviews
- 15 1 new reviews
