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Hold Security
Free
Threat Intelligence Platforms (TIP)

Hold Security View Hold Security

Hold Security delivers unparalleled threat intelligence, empowering organizations with actionable insights derived from proprietary Dark Web data mining and advanced analytical methodologies. We proactively identify, analyze, and interpret emerging threats across public and confidential digital landscapes, ensuring you receive thoroughly verified intelligence. Secure your organization against escalating cyber threats with data-driven decision-making and a superior defensive posture.

Holiseum
Free
Critical Infrastructure Protection

Holiseum View Holiseum

Holiseum provides specialized cybersecurity solutions and expert consulting services tailored for critical infrastructure organizations, leveraging a holistic approach to security. Their deep methodological and technical expertise, combined with extensive hands-on experience, empowers industrial companies to robustly materialize and scale their cybersecurity objectives, particularly in safeguarding sensitive critical infrastructures. Acquired by Integrity360 in 2025, Holiseum continues its legacy of delivering advanced security foresight.

HolistiCyber
Free
Threat Intelligence Platforms (TIP)

HolistiCyber View HolistiCyber

HolistiCyber delivers advanced, proactive cybersecurity defense by integrating a holistic understanding of your business, critical assets, and human resources with nation-state level threat intelligence. Our elite team, comprised of former IDF Intelligence cybersecurity veterans, leverages offensive and defensive expertise to conduct sophisticated assessments and implement robust solutions, safeguarding your organization from evolving cyber threats.

Holm Security
Free
Vulnerability Scanning and Management

Holm Security View Holm Security

Holm Security elevates vulnerability assessment by delivering a next-generation cloud-based platform designed for universal accessibility. Our Vulnerability Management Platform (VMP) proactively identifies and analyzes security weaknesses across networks, websites, and even human elements within your IT environment, empowering organizations to mitigate risks before they are exploited. Gain comprehensive control and actionable insights through user-friendly reports, intelligent prioritization, and integrated management tools, ensuring robust and continuous security posture.

Honeynet Project
Free
Open Source Intelligence (OSINT)

Honeynet Project View Honeynet Project

The Honeynet Project is a globally recognized non-profit dedicated to advancing cybersecurity through open-source research and development. Our international community of volunteers investigates emerging threats, analyzes sophisticated attacks, and creates innovative security tools to protect digital infrastructure worldwide. We are committed to educating the public and equipping organizations with the knowledge and resources needed to combat evolving cyber threats.

Honeywell Process Solutions (HPS)
Free
Critical Infrastructure Protection

Honeywell Process Solutions (HPS) View Honeywell Process Solutions (HPS)

Honeywell Process Solutions (HPS) provides comprehensive Industrial Cyber Security Solutions designed to safeguard the availability, reliability, and safety of critical industrial control systems (ICS) and plant operations across key sectors like Oil & Gas, Chemicals, Energy, and more. Leveraging deep industry expertise and 1,000+ global project deliveries, HPS offers end-to-end services from assessments and audits to incident response and recovery, empowering organizations to enhance their cybersecurity posture against evolving threats.

Hong Kong Broadband Network (HKBN)
Free
Managed Security Service Providers (MSSP)

Hong Kong Broadband Network (HKBN) View Hong Kong Broadband Network (HKBN)

Hong Kong Broadband Network (HKBN) is a premier ICT solutions provider delivering robust connectivity, cloud, and cybersecurity services to enterprises. Leveraging AI, machine learning, and certified professionals, HKBN offers a comprehensive cybersecurity portfolio designed to detect, protect, and respond to evolving digital threats. Their integrated approach ensures businesses can confidently navigate complex security landscapes and seize growth opportunities in the digital era, complemented by NordLayer for adaptive network access security.

Hook Security
Free
Cybersecurity Consulting

Hook Security View Hook Security

Hook Security redefines security awareness by prioritizing human behavior and leveraging psychological principles to foster a robust security-aware culture. Our innovative training goes beyond traditional methods to build lasting habits, significantly reducing phishing vulnerabilities and empowering employees to proactively identify and mitigate cyber threats. Designed for minimal disruption, our engaging modules ensure quick adoption and lasting impact, transforming your workforce into a proactive line of defense.

Hoplon InfoSec
Free
Open Source Intelligence (OSINT)

Hoplon InfoSec View Hoplon InfoSec

Hoplon InfoSec provides comprehensive cybersecurity solutions designed to address contemporary threats. Leveraging deep web and dark web monitoring, advanced threat intelligence, and robust attack surface management, we empower organizations of all sizes to proactively defend against evolving cyber challenges. Our expert services, including incident response, penetration testing, and risk management, ensure resilient security postures and business continuity.

Hopper Security
Free
Open Source Intelligence (OSINT)

Hopper Security View Hopper Security

Hopper Security is revolutionizing open-source risk management to enable safe and effective utilization of the $9 trillion open-source ecosystem. Our platform offers an agentless, 5-minute onboarding process that cuts through the noise to surface real, function-level risks. We are redefining open-source security to be accurate, actionable, and perfectly aligned with the demands of modern development workflows.

Horangi
Free
Security Orchestration, Automation, and Response (SOAR)

Horangi View Horangi

Horangi empowers organizations to achieve robust incident response and advanced threat detection capabilities, even without extensive internal resources. Our suite of integrated products is designed to augment your security posture, streamline your secure software development lifecycle, and provide continuous vigilance against sophisticated threats.

Horiba Mira
Free
Cybersecurity Consulting

Horiba Mira View Horiba Mira

Horiba MIRA is a leading global provider of automotive engineering services, specializing in comprehensive automotive cybersecurity and privacy solutions. We employ proactive engineering methodologies to identify, assess, and mitigate the complex risks inherent in connected vehicle technologies. By rigorously specifying and evaluating defence-in-depth cybersecurity measures, we deliver robust cybersecurity concepts and ensure the resilience of your automotive systems against evolving threats.

Horizon3.ai
Free
Vulnerability Scanning and Management

Horizon3.ai View Horizon3.ai

Horizon3.ai revolutionizes security assessment by providing continuous, attacker-driven validation of your security posture. Our autonomous platform, NodeZero, proactively identifies exploitable vulnerabilities and ineffective controls without the need for manual configuration, agents, or consultants. By emulating real-world attack paths, we enable organizations to prioritize remediation efforts on the most critical security gaps and achieve true, ongoing security effectiveness.

HorizonIQ
Free
Cloud Security

HorizonIQ View HorizonIQ

HorizonIQ, formerly Internap Corp (INAP), delivers high-performance, bare metal cloud infrastructure designed to accelerate innovation and maximize operational efficiency. We empower organizations, from research institutions to engineering firms, with scalable, reliable compute power and unwavering uptime for demanding workloads. Trust HorizonIQ to provide predictable costs and expert support that enables you to confidently push the boundaries of digital transformation and computational science.

HORNE
Free
Cybersecurity Consulting

HORNE View HORNE

HORNE is a premier professional services firm dedicated to empowering public, private, and government sector clients nationwide with comprehensive cybersecurity solutions. Leveraging deep industry expertise, we move beyond basic security and compliance to ensure you maximize the value of your IT investments. Our holistic approach involves a thorough assessment of your systems and processes, followed by data-driven recommendations that translate into tangible business advantages.

Hornetsecurity
Free
Data Loss Prevention (DLP)

Hornetsecurity View Hornetsecurity

Hornetsecurity, now part of Proofpoint, is a premier provider of cloud-based email security and backup solutions, safeguarding global organizations from sophisticated cyber threats. Leveraging extensive expertise and award-winning technologies like 365 Total Protection and 365 Total Backup, Hornetsecurity ensures robust defense against phishing, ransomware, advanced threats, and data loss, enabling businesses to operate with confidence and focus on their core objectives.

Hotlava Systems
Free
Network Visibility & Control

Hotlava Systems View Hotlava Systems

HotLava Systems designs and manufactures high-performance server-class Ethernet adapters supporting 1G, 10G, and 40G speeds. These advanced network adapters are engineered to alleviate network congestion at the interface, significantly boosting server and workstation productivity for critical applications like network security, data storage, virtualization, SDN, and ISP services worldwide.

Howden Broking Group
Free
Cybersecurity Consulting

Howden Broking Group View Howden Broking Group

Howden Broking Group delivers bespoke global insurance solutions, specializing in critical areas like Cyber Liability. We partner with organizations to proactively identify and mitigate digital risks, offering expert advice and tailored coverage for both first- and third-party exposures arising from e-business, networks, and information assets. Our dedicated specialists ensure your organization receives comprehensive support and guidance to navigate the complexities of modern risk management.

HoxHunt
Free
Endpoint Detection and Response (EDR)

HoxHunt View HoxHunt

Hoxhunt provides an automated, adaptive cybersecurity training platform designed to significantly reduce an organization's susceptibility to phishing attacks. By continuously simulating sophisticated phishing threats tailored to individual employee skill levels, Hoxhunt empowers your workforce to become a robust first line of defense. This data-driven approach ensures employees effectively identify and report even the most advanced attacks, drastically lowering the probability of successful breaches.

HP Wolf Security
Free
Endpoint Detection and Response (EDR)

HP Wolf Security View HP Wolf Security

HP Wolf Security provides robust, full-stack cybersecurity for your organization's endpoints, encompassing both HP and non-HP devices, and HP printers. Our advanced, layered defenses proactively isolate threats that traditional security solutions may miss, and offer integrated IT and security risk management with reduced alert fatigue for efficient operations. Experience enhanced protection and streamlined management, ensuring business continuity regardless of work location or method.

HPE Aruba Networking
Free
Network Visibility & Control

HPE Aruba Networking View HPE Aruba Networking

HPE Aruba Networking, a Hewlett Packard Enterprise business, delivers intelligent, secure, and unified network access solutions designed for the modern mobile-first enterprise. Leveraging a cloud-native approach, their infrastructure services ensure robust connectivity for mobile devices and IoT, all managed seamlessly. Aruba ClearPass provides comprehensive security by consolidating visibility and policy enforcement across wired, wireless, and VPN infrastructures, proactively safeguarding networks against evolving threats.

HSB
Free
Cybersecurity Consulting

HSB View HSB

HSB, a leader in equipment breakdown and specialty insurance distribution in Canada, applies an engineering-driven approach to address emerging risks. They offer specialized, turnkey coverages for areas such as microelectronics, IoT, cyber attacks, data breaches, and identity recovery. HSB's Cyber Suite provides a comprehensive solution for small businesses, facilitating recovery from cyber-attack damage to data and systems, along with defense and liability coverage for third-party lawsuits.

HTL Support
Free
Managed Security Service Providers (MSSP)

HTL Support View HTL Support

HTL Support is your premier IT partner in London, providing expert technology solutions designed to elevate businesses of all sizes. We specialize in proactive IT management, cybersecurity, and seamless operational support, ensuring your digital infrastructure is robust, secure, and aligned with your strategic goals. Our dedicated professionals are committed to delivering cost-effective, scalable IT services that drive efficiency and empower your growth in today's competitive market.

Silent Breach
Free
Cybersecurity Consulting

Silent Breach View Silent Breach

Silent Breach is a premier cybersecurity firm dedicated to safeguarding your network infrastructure and digital assets. Our comprehensive suite of services, designed for diverse global markets, includes continuous monitoring, rapid incident response, in-depth penetration testing, and meticulous vulnerability assessments. We also provide expert web application testing, source code analysis, and robust Governance, Risk & Compliance solutions, including GDPR readiness checks.

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