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.
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List of the Best United Kingdom Cybersecurity Consultants
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61Undisclosed2 - 9 employeesNottingham, EnglandCybersecurity company Collective Security is based in Nottingham, England. Their services include Cybersecurity and other IT consulting and SI.Read More
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62$1,000+10 - 49 employeesLondon, EnglandRead More
Altahonos is a digital reputation company based in London with offices in San Francisco and Istanbul. The company, founded in 2017, has a team of more than ten that provides cybersecurity, branding, digital strategy, SEO, and IT strategy consulting services to various clients and companies.
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63$1,000+10 - 49 employeesLondon, EnglandCyberSRC Consultancy LLP is a Cybersecurity company. The team provides Cybersecurity and Application Testing and is headquartered in Noida, India and London, England.Read More
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64$250,000+2 - 9 employeesLondon, EnglandSanRa is a Cybersecurity company established in 2022. The small team specializes in Cybersecurity.Read More
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65Undisclosed2 - 9 employeesBirmingham, EnglandPaul Reynolds is a Cybersecurity company. The small Birmingham, England-based team specializes in Cybersecurity. The company was launched in 2025.Read More
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66Undisclosed250 - 999 employeesLake Oswego, ORFounded in 1986, Online Business Systems is a Cybersecurity company. The team specializes in Cybersecurity and IT strategy consulting.Read More
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67Undisclosed250 - 999 employeesLondon, EnglandProfessional Advantage is a midsize ERP consulting and SI company in North Sydney, Australia and Melbourne, Australia. Their services include ERP consulting and SI and cloud consulting & SI.Read More
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68$10,000+50 - 249 employeesStanmore, EnglandMicromindercs is a Cybersecurity company. Launched in 2018, the team focuses on Cybersecurity and IT managed services.Read More
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69Undisclosed250 - 999 employeesBirmingham, EnglandAir IT is an IT strategy consulting company established in 2005. Based in Sandiacre, England and Birmingham, England, the team specializes in IT strategy consulting and cloud consulting & SI.Read More
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70$1,000+10 - 49 employeesBasingstoke, EnglandCybersecurity company Censornet was founded in 2005. Based in Basingstoke, England and Brøndby, Denmark, the team focuses on Cybersecurity.Read More
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71$1,000+50 - 249 employeesLondon, EnglandMidsize Cybersecurity company Clear Infosec, is based in Jersey City, New Jersey and Toronto, Canada. The team focuses on Cybersecurity and IT strategy consulting.Read More
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72Undisclosed250 - 999 employeesLondon, EnglandRedscan is a Cybersecurity company founded in 2015. Their team offers Cybersecurity.Read More
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73$25,000+10 - 49 employeesLondon, EnglandEstablished in 2019, DigiTaiken, a small Product Design company, is headquartered in London, England and Bengaluru, India. Their services include Product Design and Cybersecurity.Read More
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74Undisclosed10 - 49 employeesRoyal Leamington Spa, EnglandHacker On Rent is a Cybersecurity company. They were established in 2018, and their services include Cybersecurity.Read More
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75Undisclosed10 - 49 employeesWhitchurch, EnglandInfosec Partners is a Whitchurch, England-based Cybersecurity company. Their services include Cybersecurity.Read More
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76$10,000+10 - 49 employeesLondon , EnglandTurgensec is a small Cybersecurity company headquartered in London , England. Their services include Cybersecurity.Read More
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77Undisclosed10 - 49 employeesDoogary, Northern IrelandLoughTec IT · Cyber Security, a Cybersecurity company, focuses on Cybersecurity and IT managed services. The agency is in Doogary, Northern Ireland.Read More
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78$1,000+10 - 49 employeesLondon, EnglandSectricity is a Cybersecurity company established in 2021. In Merelbeke-Melle, Belgium and London, England, the team specializes in Cybersecurity.Read More
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79Undisclosed2 - 9 employeesCity of London, EnglandCyPro, a Cybersecurity company, was established in 2021. Headquartered in City of London, England, the team focuses on Cybersecurity.Read More
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80Undisclosed2 - 9 employeesHandforth, EnglandSES Escrow is a Cybersecurity company. The Handforth, England-based agency was founded in 2008. Their services include Cybersecurity.Read More
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81$1,000+2 - 9 employeesLondon, EnglandHeadquartered in London, England, Cynance is a Cybersecurity company. Established in 2019, the team specializes in Cybersecurity.Read More
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82$1,000+2 - 9 employeesLeeds, EnglandCybersecurity company Data Protection People was launched in 2016. In Leeds, England, the team focuses on Cybersecurity.Read More
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83Undisclosed10 - 49 employeesBirmingham, EnglandCybersecurity company Aristi Limited offers Cybersecurity. They were launched in 2008.Read More
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84$10,000+250 - 999 employeesLondon, EnglandExponential-e, a Cybersecurity company, specializes in Cybersecurity and cloud consulting & SI. The firm is based in London, England.Read More
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85Undisclosed2 - 9 employeesLondon, EnglandCybersecurity company Cyber Legion was launched in 2021. Located in London, England, the team offers Cybersecurity and Application Testing.Read More
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86Undisclosed2 - 9 employeesMiddlesbrough, EnglandSencode Cyber SEcurity, a Cybersecurity company, was established in 2019. The team specializes in Cybersecurity.Read More
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87$5,000+10 - 49 employeesLondon, EnglandEstablished in 2021, Kloudwerk is a Cybersecurity company. The small team specializes in Cybersecurity.Read More
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88$5,000+10 - 49 employeesLondon, EnglandEstablished in 2020, Securityium is a Cybersecurity company. The team offers Cybersecurity and IT strategy consulting.Read More
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89Undisclosed2 - 9 employeesChesterfield, EnglandBlack Swan Cyber Security Solutions, a Cybersecurity company, was established in 2006. They provides Cybersecurity.Read More
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90UndisclosedFreelancer employeesLondon, EnglandPhenomlab Ltd is a Cybersecurity company. Based in London, England, the team provides Cybersecurity.Read More
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