Managed Security Services (MSSP)
Outsourced security monitoring and incident response
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FORTIFIED IT LTD
Fortified IT provides cyber security and IT support services to organisations across the UK, focusing on SMEs in the education and charity sectors. The company protects clients from cyber and technology risk through strategy and architecture, procurement and implementation, and ongoing support and security solutions, including managed security plans with 24x7 protection alongside infrastructure, connectivity and professional services.
GT Cyber Security
GT Cyber Security provides managed cloud security solutions for businesses, including those with limited IT resources. Based in Basildon, the company offers tiered endpoint protection packages: Small Office Protection for 1-10 devices, Small Business Protection for 11-100 devices, and Business Protection for larger organisations. Services are fully managed, require no configuration, and combine managed services with Avast business security to protect devices, data and applications from cyber threats.
Hampden Consultancy Group
Hampden Consultancy Group (HCG) is a cyber security and risk consultancy delivering governance, risk and compliance, AI security governance, Secure by Design implementation, supply chain assurance, operational resilience and data protection services. HCG serves public sector, critical national infrastructure and private sector organisations, embedding into delivery teams to provide hands-on security leadership aligned to UK regulatory requirements. Services include Data Protection Officer as a Service and programme and project security support. HCG draws on experience from former government and global security roles to provide outcome-driven, practical security guidance.
ICS Cyber Management
This company provides managed cybersecurity solutions, threat detection and compliance services to businesses of all sizes. Its offerings include security operations centre monitoring, virtual chief information security officer services, vulnerability assessments, zero-trust applications, incident response and staff security training across a variety of business sectors.
InfoSecurity People Ltd
InfoSecurity People is a Harrogate-based provider of outsourced IT security services for small and medium-sized enterprises. Its managed security offering covers secure endpoint monitoring, vulnerability scanning, managed encryption, firewall and intrusion detection, wireless intrusion detection and SIEM. Professional services include penetration testing, asset discovery audits, Cyber Essentials, GDPR, ISO 27001 consultancy and PCI DSS QSA support. The company also supplies patch management, cloud archiving and connectivity including broadband and leased lines.
Just Cyber Security
Bolton-based cyber security firm working with UK businesses to prevent cyber-attacks and support them during and after incidents. Services include managed security services, network security monitoring, penetration testing, vulnerability scanning, human cyber risk management and a 24/7 cyber incident response hotline. It runs cyber security awareness workshops and Phish Aware phishing simulation, and deploys DNS filtering, Huntress, Sophos and Lima Charlie. Part of Just Technology Group.
Kay Services (UK) Limited
Kay Services is a managed security service and IT support provider with over 25 years of experience. It delivers managed IT support, cybersecurity services including audits and Cyber Essentials, cloud migration and Microsoft cloud services, IT consulting with fractional CTO and CISO support, SAP services, network services, remote working solutions, and business continuity and disaster recovery planning. The company offers 24/7 support to organisations across the UK.
Komcept Solutions
Komcept Solutions designs and implements security technology for law enforcement and government agencies. Its services cover Technical Surveillance Counter Measures (TSCM), including development of proprietary TSCM devices, lawful interception and SIGINT solutions from network access through to recording and analysis, and the Overwatch C2 platform providing real-time situational awareness across borders, infrastructure, perimeters, and smart city environments. The company also provides specialist security training and long-term mentoring for protection personnel.
LONGWALL SECURITY
Longwall Security Ltd provides managed detection, intelligence and response, managed risk and exposure, managed strategy and resilience, consulting, training and enablement, and assessments to organisations seeking to strengthen their cyber security posture. The company serves clients facing evolving cyber threats, skills and capacity challenges, and the need to demonstrate returns on cyber security investment.
MONDAS CONSULTING
Mondas provides managed security services including Managed SOC, SIEM, MDR/XDR, vulnerability management, security awareness training, and dark web monitoring, alongside professional services such as vendor risk management, vCISO, policy suite, penetration testing, and compliance services for ISO standards. They serve organisations across pharmaceutical, insurance, housing association, government, education, and construction industries seeking to reduce cyber risk, strengthen compliance, and build sustainable security posture.
MSnet Ltd
MSnet provides cybersecurity and IT services to UK businesses, including regulated firms that handle sensitive client data. Its services cover dark web monitoring, endpoint and e-mail protection, internet browsing protection, security awareness training and user credential management, alongside cloud backup and Microsoft 365 support. Offerings are packaged into three tiers - self, managed and professional services - so businesses of all sizes can choose their level of support.
Mondas Consulting Ltd
Mondas Consulting is a Farnborough-based cyber security consultancy providing managed security services including a managed SOC, SIEM, managed detection and response, vulnerability management and dark web monitoring. Its consultants deliver penetration testing, virtual CISO support, vendor risk management and security awareness training, alongside compliance services for ISO 27001, ISO 27701 and ISO 42001. The company serves sectors including pharmaceuticals, insurance, housing associations, government, education and construction.
NOVA BLUE TECHNOLOGIES
This organisation provides managed cyber security services, continuous monitoring, incident response and strategic advisory solutions. It hardens systems, applications, devices and identities to proactively manage security posture, mitigate cyber attacks and support recovery. The organisation serves founders, operators and investors across defence technology, financial services, aerospace, professional services and manufacturing sectors.
Peritus Cloud Security
Peritus Cloud Security is a St Albans-based provider of cloud and cyber security services and consultancy. Its UK-based consultants deliver managed services covering Microsoft 365 email security, endpoint and network protection, risk-based vulnerability management, penetration testing, incident readiness and ransomware resilience. Working alongside internal IT and security teams, Peritus serves organisations across sectors including finance, education, healthcare, technology, professional services, media and the public sector.
Primelo Cyber
Primelo Cyber is a Milton Keynes-based managed security service provider and IASME-authorised Cyber Essentials Certification Body. It assesses and issues Cyber Essentials and IASME Cyber Assurance certifications directly, and supports clients with ISO 27001, GDPR and PCI-DSS compliance, including gap analysis, DPO-as-a-service and v4.0 transition. CREST and OSCP certified testers perform penetration testing across applications, cloud and networks, alongside 24/7 threat monitoring and staff awareness training.
ProtekCyber
ProtekCyber delivers cyber security services to UK businesses, including a 24/7 SOC as a Service providing managed detection, monitoring and rapid incident response by UK-based analysts. Certified ethical hackers carry out penetration testing and vulnerability assessments supporting compliance such as PCI DSS and ISO 27001. The company also offers cloud security strategy and implementation for AWS, Azure and GCP environments, alongside data protection and compliance services.
RevEng.AI
RevEng.AI is a binary intelligence platform that analyses compiled software at scale without requiring source code, symbols or sandboxing. The platform has analysed more than 1.4 billion binaries and achieves 99.4% malware family attribution precision with a median analysis time of 183 seconds, 42 times faster than manual reverse engineering. Capabilities include agentic malware analysis, semantic code search across binaries, AI decompilation, and native plugins for IDA Pro, Ghidra and Binary Ninja. RevEng.AI is deployed on-premises, in air-gapped environments or within a customer's VPC.
Salus Cyber
Salus Cyber is a Cheltenham-based cyber security company providing managed security services alongside advisory and compliance work. Its security operations centre offers managed SOC, MDR, SIEM, XDR and threat intelligence, while penetration testing covers infrastructure, applications, cloud code review, red teaming and social engineering. Advisory services include CISO as a Service, ISO 27001, PCI DSS QSA support, incident response, forensics and security awareness training.
SecureAck
SecureAck provides the A-Ops platform and Managed Automation-as-a-Service (MAaaS) to deliver intelligent security automations for IT and OT environments. The platform enables organisations to build limitless, scalable workflows that maximise existing security solutions, improve incident response times, and empower security teams to focus on complex challenges by automating repetitive tasks.
Security Foundry Ltd
Security Foundry is a cybersecurity company based in Wrexham, established in 2018, serving businesses across North Wales. Its experienced team designs and delivers IT and security solutions including Cyber As A Service, MicroSOC monitoring built on Microsoft Sentinel, AI solutions and enhanced IT support. Partnering with CyberSmart, KnowBe4 and Bob's Business, it helps organisations address cyber risks, data privacy and the challenges of home and hybrid working.
Shield Cyber Security
Shield Cyber Security provides managed cyber security services to UK businesses from its Weston-super-Mare base. Its core offering is XDR protection across endpoints, cloud, servers and networks, monitored continuously by a 24/7 Security Operations Centre. Additional services include email security, penetration testing, staff awareness training, cyber security audits and cyber risk management, using tools such as SentinelOne antivirus, backup and email encryption.
Shift Key Cyber
Shift Key Cyber provides cyber security consulting services tailored to organisations of all sizes and sectors. The company is an NCSC Assured Service Provider and operates as an IASME certification body, with over 50 years of combined information and cyber security experience across its consultants. Services span cyber risk assessment, governance advisory, assurance reviews, certification support and resilience planning, with approaches built around each client's specific security requirements. Shift Key Cyber is registered in England and Wales as company number 13676908.
Socos
Managed detection and response (MDR) delivers cybersecurity as a service (CSaaS), with 24/7 ransomware and breach prevention.
Softwerx
Softwerx is a Cambridge-based Microsoft security specialist serving midmarket organisations. Its secure365 service provides 24x7 managed detection and response using Microsoft 365 Defender, monitored by a UK-based SecOps team. Alongside this it offers security assessments, consultancy, support and remediation, penetration testing, Cyber Essentials certification and Microsoft Envisioning Workshops, supplemented by partner products covering email security, backup, patch management and awareness training.
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