Top 100 Cybersecurity Companies in the United Kingdom
The Best of May 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.
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List of the Best United Kingdom Cybersecurity Consultants
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331$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
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332$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
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333$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
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334$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
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335Undisclosed2 - 9 employeesLeicester , EnglandBerea is a Cybersecurity company. The team focuses on Cybersecurity, and the agency is headquartered in Leicester , England.Read More
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336$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
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337$5,000+50 - 249 employeesLondon, EnglandLaunched in 2011, Digital Shadows is a Cybersecurity company. The midsize team specializes in Cybersecurity.Read More
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338$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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339Undisclosed50 - 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
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340Undisclosed50 - 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
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341Undisclosed10 - 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
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342Undisclosed10 - 49 employeesCity of London, EnglandISTARI, a Cybersecurity company, was established in 2020. The team provides Cybersecurity and IT managed services.Read More
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343Undisclosed2 - 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
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344Undisclosed50 - 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
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345Undisclosed10 - 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
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346Undisclosed250 - 999 employeesBelfast, Northern IrelandSilverSky is a Cybersecurity company. They are headquartered in Morrisville, North Carolina and Milford, Connecticut. Their team offers Cybersecurity.Read More
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347Undisclosed1,000 - 9,999 employeesLondon, EnglandEstablished in 1999, Secureworks is a large Atlanta, Georgia-based Cybersecurity company. Their services include Cybersecurity.Read More
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348Undisclosed50 - 249 employeesLondon, EnglandLaunched in 2011, ThreatSpike Labs is a midsize Cybersecurity company based in London, England. Their team specializes in Cybersecurity.Read More
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349Undisclosed250 - 999 employeesOxford, EnglandNominet is an Oxford, England-based Cybersecurity company. Launched in 1996, the team specializes in Cybersecurity.Read More
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350Undisclosed10 - 49 employeesLondon, EnglandHeadquartered in London, England, Darklabs is a small Cybersecurity company. Their services include Cybersecurity.Read More
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351Undisclosed250 - 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
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352Undisclosed250 - 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
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353Undisclosed10 - 49 employeesCity of London, EnglandAppsecco is a Cybersecurity company launched in 2015. The company provides Cybersecurity.Read More
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354Undisclosed50 - 249 employeesLondon , EnglandDarkbeam is a midsize Cybersecurity company launched in 2017. Their team specializes in Cybersecurity.Read More
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355Undisclosed2 - 9 employeesCity of London, EnglandEstablished in 2013, Cyber Sentinel is a Cybersecurity company. The agency specializes in Cybersecurity, and is small.Read More
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356Undisclosed2 - 9 employeesLondon, EnglandLaunched in 2015, Cobwebs Technologies is a small Cybersecurity company. Their services include Cybersecurity and Artificial Intelligence.Read More
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357Undisclosed50 - 249 employeesDoncaster, EnglandDigitalXRAID is a cloud consulting & SI and Cybersecurity company. The Doncaster, England-based company provides cloud consulting & SI and Cybersecurity.Read More
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358Undisclosed10 - 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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359Undisclosed2 - 9 employeesKirkintilloch, ScotlandFairtech Sol Limited is a Cybersecurity company. They are headquartered in Kirkintilloch, Scotland and have small team. They provide Cybersecurity.Read More
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360Undisclosed1,000 - 9,999 employeesBracknell, EnglandGlobal Knowledge is a cloud consulting & SI company founded in 1995. Their team specializes in cloud consulting & SI and Cybersecurity.Read More
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