The best Cybersecurity agencies 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…

Cyber One Security specializes in cybersecurity, providing expert consulting and incident response services to protect businesses' digital assets. Their experienced team focuses on fortifying defenses against security threats.

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.

Overview Clyde & Co is an international law firm with nearly a century of experience at the heart of global commerce. The firm positions itself as an expert in risk management and navigating commercial and legal complexities. Its integrated teams of lawyers specialising in litigation, transactions and regulatory law address all risk issues facing businesses, systematically pursuing its clients' interests. Services and expertise Geopolitical risk management The firm addresses the consequences of a volatile geopolitical environment. Its integrated approach enables it to anticipate and manage…

Theodo helps organisations design, develop and operate digital products and systems: web and mobile platforms, data, artificial intelligence, cloud, cybersecurity and experience design. The group brings together several specialised entities, including Theodo Apps (mobile applications, formerly BAM), Theodo Data & AI and Theodo Cloud. It has over 700 employees and 6 offices worldwide, and applies its Lean Tech methodology.

Overview 1st-IT is a managed IT services provider based in London, specialising in IT support for small and medium-sized businesses and charities. Since 2000, the agency has offered an integrated service covering helpdesk, cloud services, security, backups and infrastructure management. The model is based on a single monthly fee that includes all services, with no hidden additional charges. The team provides remote and on-site support across London and the surrounding area. Services and expertise Cloud Computing 1st-IT handles the configuration, management and optimisation of Microsoft 365,…

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.

Presentation Secon is a cybersecurity consulting firm focused on protecting data, teams and organisations. The agency provides comprehensive support, combining technological advice and cloud infrastructure security. As a partner, Secon works internally with client teams to strengthen business defences, increase organisational trust and facilitate secure growth. For more information, visit https://seconcyber.com Services and expertise Cybersecurity consulting Secon supports organisations in evaluating and improving their security posture. The firm advises on current technologies and helps…

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…

Digital Shadows minimizes digital risk by identifying unwanted exposure and protecting against external threats. The agency specializes in cybersecurity, web applications, and cloud consulting services.

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…

Overview Red Sky Digital is a cloud services and enterprise technology service provider based in Bangkok. The agency focuses on delivering Amazon cloud migrations and managed services, combined with software development and integrations. It also works on brand creation, website development and the implementation of HubSpot marketing solutions. Its positioning is built around the deployment, management and construction of cloud-based technology solutions. For more information, visit https://redskydigital.com. Services and expertise Amazon cloud migrations and services Red Sky Digital offers…

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…

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…

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.

Trustwave is a cybersecurity and managed security services provider specialising in managed detection and response. They focus on offering comprehensive security solutions to protect businesses from threats and vulnerabilities.

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.

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…

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…

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…

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…

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…

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.

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…

Overview Field Effect offers a managed detection and response (MDR) solution designed for the artificial intelligence era. The platform combines the expertise of former intelligence operatives with state-level tradecraft methodologies to identify complex threats that conventional tools do not detect. The offering addresses both internal IT teams and managed service providers (MSPs) seeking to strengthen their security posture against AI-assisted attacks. For more information, visit https://www.fieldeffect.com. Services and expertise 24/7 threat detection and response Field Effect operates a…