The best Cybersecurity agencies in London
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25agencies in London13postal codes
1. Fitzrovia IT
Cybersecurity agency in London, active since 1999
Fitzrovia IT : team of 4 people, founded in 1999, office in London (W1W 8SE).
Overview Fitzrovia IT is a managed service provider (MSP) based in London and one of the UK's most accredited IT support and cybersecurity companies. Since 1999, the agency has supported businesses across the UK with robust and tailored IT solutions, increasing operational efficiency and reducing downtime. The responsive team intervenes on live issues and adopts a proactive and strategic approach, helping clients anticipate and prevent IT malfunctions. Fitzrovia IT holds advanced accreditations including Investors in People Gold, Microsoft Solutions Partner Designates, DCC, IASME, Cyber…
2. Cardonet International IT Support and Services
Cybersecurity agency in London
Cardonet International IT Support and Services : team of 57 people, office in London.
Overview Cardonet International IT Support and Services is an IT service provider established in 1999. The agency offers outsourced IT support, managed IT services and technology consulting for organisations. It operates in the fields of IT strategy, cloud, cybersecurity and day-to-day IT infrastructure management. Cardonet works with clients from varied industries, including hospitality, manufacturing and education. For more information, visit https://www.cardonet.com. Services and expertise IT support Cardonet provides responsive and transparent IT support covering all technologies used…
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3. ITRM
Cybersecurity agency in London, active since 1999
ITRM : team of 75 people, founded in 1999, office in London.
Overview ITRM is an IT service provider operating in the United Kingdom, based across multiple regions including London, Kent and Bristol. The agency offers an extensive range of services covering cybersecurity, artificial intelligence, cloud infrastructure, managed IT support and technology consulting. The organisation works across diverse industries such as the charity sector, manufacturing, retail, finance, legal services, real estate, sport and leisure, and education. ITRM maintains an established partnership with Charlton Athletic as an official IT services provider. Services and…
4. Armor
Cybersecurity agency in London
Armor : team of 215 people, office in London.
Overview Armor offers a unified, adaptive and transparent cloud security and regulatory compliance platform. The offering is designed for enterprises seeking to protect their infrastructure in cloud and multicloud environments. The platform integrates artificial intelligence and human expertise to detect, predict and neutralise threats. Armor emphasises the automation of regulatory compliance and continuous monitoring of security environments. For more information, visit https://www.armor.com. Services and expertise AI-powered defence The platform uses adaptive intelligence capable of…
5. Our IT Department
Cybersecurity agency in London
Our IT Department : team of 15 people, office in London (EC4V 4EG).
Our IT Department provides IT support services for London and the East of England. With over 20 years of experience, they specialize in managed IT services, IT consultancy, and cybersecurity solutions.

6. Teqniq
Cybersecurity agency in London
Teqniq : team of 23 people, office in London (E11 2DL).
Teqniq is a recruitment agency based in London, UK, specialising in providing temporary, contract, and permanent staffing solutions across multiple sectors both locally and globally. With a team of 23 professionals, they cater to various recruitment needs.
7. DHTS
Cybersecurity agency in London
DHTS : team of 25 people, office in London (WC1H 9BB).
Overview DHTS is an IT services agency founded on over 26 years of technical expertise. The company offers a proactive approach to managing, maintaining, securing and optimising IT infrastructures 24 hours a day, 7 days a week. Its objective is to ensure that technology runs without interruption, allowing clients to focus on their core business. DHTS supports many different industries by leveraging unique technologies and modern methodology. To find out more, visit https://www.dhts.co.uk. Services and expertise Managed IT Support DHTS provides high-level managed IT support based on a…
8. Digitpol
Cybersecurity agency in London, active since 2013
Digitpol : team of 1 person, founded in 2013, office in London (N1 7GU).
Overview Digitpol is an accredited criminal investigation agency specialising in operational support and investigation services to combat transnational crime. The agency operates on information beyond public sources, enabling exploration of background or non-public elements, always within legal frameworks and for security objectives. For more information, visit https://digitpol.com. Services and expertise Cybercrime investigations Digitpol offers specialised services in cybercrime investigations and digital security. The team responds immediately to provide clear reports and actionable…
9. NetMonkeys Ltd
Cybersecurity agency in London, active since 2003
NetMonkeys Ltd : team of 35 people, founded in 2003, office in London (W8 6NX).
Overview NetMonkeys Ltd is a UK-based managed service provider specialising in IT support, software solutions, artificial intelligence, ERP systems and cybersecurity. The agency adopts a proactive approach to technology, combining managed IT support services and innovative software solutions. Its positioning focuses on maintaining the security and efficiency of companies' IT environments, in alignment with their strategic objectives. For more information, visit https://www.netmonkeys.co.uk. Services and expertise Managed IT support NetMonkeys provides managed IT support services, intervening…
10. Westminster Security
Cybersecurity agency in London
Westminster Security : team of 19 people, office in London.
Overview Westminster Security is an independent private security agency based in central London. Specialising in the provision of premium security services, it operates for affluent individuals, families and businesses established in London or visiting the British capital. The company operates across British territory, Europe and internationally. The majority of its security officers possess substantial professional experience within the British police and armed forces. For more information, visit the official website. Services and expertise Close protection Westminster Security offers…

11. Speedster IT
Cybersecurity agency in London
Speedster IT : team of 35 people, office in London (E1 7QX).
Speedster IT is a UK IT support company based in London, specialising in 24/7 helpdesk services, IT consultancy, and cyber security. They cater primarily to small and medium businesses across London and the UK.
12. PCW Solutions Ltd
Cybersecurity agency in London
PCW Solutions Ltd : team of 5 people, office in London.
Overview Pure Clean Waste Solutions Ltd is a licensed hazardous waste management company based in Stockport in Greater Manchester. It operates across the United Kingdom and specialises in the collection and disposal of hazardous waste, used oils and oil filters. The company also offers degreaser maintenance services and cleaning machine rental services. It operates from a facility registered with the Environment Agency and holds a waste carrier licence, as well as ISO 9001 and 14001 certifications. Services and expertise Collection and disposal of hazardous waste The company collects all…

13. Cloud Appliances UK
Cybersecurity agency in London, active since 2008
Cloud Appliances UK : team of 20 people, founded in 2008, office in London.
Cloud Appliances UK provides expert networking solutions specializing in Cisco and Meraki hardware. They focus on cybersecurity and cloud consulting services to optimize IT infrastructure for businesses.
14. TechForing Ltd.
Cybersecurity agency in London, active since 2014
TechForing Ltd. : team of 4 people, founded in 2014, office in London.
Overview TechForing Ltd. provides cybersecurity solutions for businesses and individuals. The agency operates in the field of digital protection by offering risk assessment services, security management and incident response. TechForing operates on an international scale with offices in several regions and has contact channels for sales and meeting requests. For more information, https://techforing.com. Services and expertise Enterprise cybersecurity TechForing offers customised cybersecurity solutions for organisations. The service includes proactive defence against emerging threats, with…
15. CodeUp Studios
Cybersecurity agency in London
CodeUp Studios : team of 60 people, office in London (N2 9ED).
Overview CodeUp Studios is a WordPress agency specialising in the design and development of websites. The company builds functional, scalable and responsive websites using WordPress as the primary platform. The agency is committed to delivering complete client satisfaction through professional development services and high-level support. Its approach focuses on maximising return on investment for every project delivered. For more information, visit https://codeupstudios.com. Services and expertise Custom development CodeUp Studios develops exclusively with WordPress, allowing the team to…
16. Twin Systems
Cybersecurity agency in London
Twin Systems : team of 12 people, office in London.
About us Twin Systems is an independent IT consulting firm that provides IT solutions and expert support for all technology needs. Its independence from vendors enables it to deliver recommendations aligned with clients' genuine interests. The agency supports organisations in building high-performing IT systems capable of improving customer communications and facilitating internal collaboration. More information available at https://twinsystems.co.uk. Services and expertise IT consulting Twin Systems offers IT consulting support covering all technology needs of organisations. The approach…
17. N Trust Systems Ltd
Cybersecurity agency in London
N Trust Systems Ltd : team of 18 people, office in London.
Overview N Trust Systems Ltd provides IT services covering technical support, cloud infrastructure, data security and strategic consulting. The agency works with businesses to ensure the continuity of their systems, software updates and protection against cyber threats. Its approach combines certified technical expertise and support tailored to the specific challenges of each organisation. For more information, visit https://ntrustsystems.co.uk. Services and expertise IT support N Trust Systems provides certified and trained technicians to ensure optimal system performance, keep software up…

18. TMB Group
Cybersecurity agency in London
TMB Group : team of 23 people, office in London (UB2 4SD).
TMB Group provides managed IT support services including disaster recovery, cloud backup, cyber security, and 24-hour support. They are based in Havant, United Kingdom, with additional offices in London, Hampshire, Essex, and Kent.
19. Portman Tech
Cybersecurity agency in London
Portman Tech : team of 8 people, office in London.
Overview Portman Tech operates in the finance, real estate and media industries to deliver secure and transparent technology solutions. The agency provides continuous technical support, adapting its services to the operational specificities of each industry. Its approach is built on understanding the constraints unique to each business domain: regulatory compliance in finance, operational coordination in real estate, responsiveness and collaboration in media. For more information, visit https://portmantech.com. Services and expertise Managed IT Responsive IT support service combining…
20. Bristows LLP
Cybersecurity agency in London
Bristows LLP : team of 369 people, office in London (EC4Y 0DH).
About us Bristows is a law firm specialising in technology, life sciences and innovation. The firm combines deep legal expertise with scientific and technological capabilities, enabling its teams to understand their clients' business challenges and communicate in their language. Bristows provides support on complex and varied issues, particularly in the fields of medical technologies for women's health, intellectual property and regulation of innovative companies. More information available at https://www.bristows.com. Services and expertise Life sciences The firm offers support in the life…
21. The Antwerp Arms
Cybersecurity agency in London
The Antwerp Arms : team of 12 people, office in London.
Presentation The Antwerp Arms is an establishment located in Antwerp, Belgium. The company operates as a community space dedicated to craft beer, combining a traditional atmosphere with a commitment to its customers. It offers reservation services for lunch and dinner meals, as well as the organisation of private events. The team has 12 members and communicates primarily in English. The Antwerp Arms has been registered on Sortlist since 2024. Services and expertise Cybersecurity The Antwerp Arms offers services in the field of cybersecurity, including data protection. This service reflects a…
22. Brunswick Group
Cybersecurity agency in London
Brunswick Group : team of 4 people, office in London (WC2A 3ED).
Overview Brunswick Group is a global advisory firm specialising in relations between organisations and their critical stakeholders. The firm works with leading organisations in high-stakes contexts, building its approach on trust, expertise and the ability to deliver measurable results. Value creation for clients rests on strengthening and consolidating strategic relationships. The firm operates through an international network covering the world's major economic centres, from New York to Tokyo, London to Dubai, and Paris to Sydney. Geographic presence Brunswick Group has an established…
23. Infinity Group UK
Cybersecurity agency in London, active since 2001
Infinity Group UK : team of 159 people, founded in 2001, office in London (SE1 9SG).
Infinity Group is a leading IT company based in London, specializing in IT consultancy and IT infrastructure solutions. The firm serves thousands of businesses across London and the UK since its establishment in 2001.
24. Redscan
Cybersecurity agency in London
Redscan : team of 60 people, office in London (SE1 9SG).
Redscan provides managed detection and response, penetration testing, and incident response services to combat cyber security threats. The agency focuses on helping businesses enhance their security posture against increasing cyber threats.

25. Crossword Cybersecurity PLC
Cybersecurity agency in London
Crossword Cybersecurity PLC : team of 10 people, office in London (EC4A 3EB).
Crossword Cybersecurity PLC collaborates with various organisations to address cybersecurity challenges across different industries. They focus on providing solutions that enhance security for their clients.
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