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Critical Infrastructure Protection

C3i Hub View C3i Hub

C3i Hub is a comprehensive initiative dedicated to advancing the cybersecurity of cyber-physical systems. We address the entire security lifecycle, from in-depth vulnerability analysis and tool development to the creation of deployment-ready software and fostering innovation through startup incubation. Our collaborative approach extends to strategic industry partnerships for technology transfer and co-development, alongside vital training programs to cultivate the next generation of cybersecurity experts.

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Cybersecurity Consulting

C3IA Solutions View C3IA Solutions

C3IA Solutions is an NCSC-certified Cyber Consultancy dedicated to providing robust, tailored information security and data protection strategies. As an early NCSC certification recipient and an appointed Certification Body for the Cyber Essentials Scheme, we deliver expert guidance and assurance for organisations across the public and private sectors. Our nationwide team offers comprehensive services, from IASME Governance Standard certification to full-spectrum cyber and information security capability.

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Security Orchestration, Automation, and Response (SOAR)

C3iHub View C3iHub

Established in 2020 under the National Mission on Interdisciplinary Cyber-Physical Systems (NM-ICPS) and funded by the Department of Science and Technology, C3iHub is dedicated to advancing Cyber-Physical Systems (CPS) and related cybersecurity technologies. C3iHub actively fosters technology development, translation, entrepreneurship, and skill enhancement within the cybersecurity domain. By building a robust cybersecurity ecosystem, C3iHub supports cutting-edge solutions that enhance efficiency and collaboration between IT and security, while offering advanced authentication methods to secure digital interactions.

CC

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Cybersecurity Consulting

C5 Capital View C5 Capital

C5 Capital is a cybersecurity investment firm dedicated to acquiring and growing market-leading companies that provide essential digital infrastructure and security solutions. By strategically investing in and developing innovative technologies, C5 Capital strengthens the global cybersecurity ecosystem and protects critical assets for businesses worldwide. Their portfolio companies, such as NordLayer, BackupVault, and MIRACL, offer advanced solutions in network access security, data protection, and multi-factor authentication.

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Network Visibility & Control

C5 Technology View C5 Technology

C5 Technology, now part of OneStep Group, delivers expert networking, security, and infrastructure solutions to enterprises and government agencies. We leverage proven project and program management expertise to guide the implementation of strategic technical solutions, supported by highly experienced, CCIE/CISSP certified consultants and exclusive access to Queensland's top ICT talent. As a fully vendor-independent and flexible alternative to larger integrators, C5 Technology provides bespoke, quality ICT solutions tailored precisely to client requirements.

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Security Orchestration, Automation, and Response (SOAR)

CACI International View CACI International

CACI International empowers government agencies with advanced technological solutions designed to optimize operations and address complex challenges. By investing proactively in cutting-edge areas like signals intelligence, electronic warfare, and advanced AI, CACI accelerates the development of critical capabilities for multi-domain operations and enhanced cybersecurity. Their expertise in data fusion, visualization, and business process automation drives informed decision-making and boosts organizational productivity.

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Endpoint Detection and Response (EDR)

Cado Security View Cado Security

Cado Security, now part of Darktrace, offers a cutting-edge cloud-native platform designed to revolutionize digital forensics and cyber incident response. Their software empowers organizations to rapidly investigate complex incidents across on-premise and cloud environments without requiring agent deployment, accelerating response times and ensuring the integrity of evidence. Complementing their platform, Cado Security provides expert consulting services to help organizations prepare for and effectively manage even the most sophisticated cyber threats.

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Access Rights Management

Cakewalk View Cakewalk

Cakewalk revolutionizes identity and access management by providing unparalleled visibility into employee application usage and automating access requests. Streamline IT operations with zero-effort access management, significantly reducing administrative overhead and enhancing security posture. Trusted by leading IT and Security teams, Cakewalk empowers organizations to achieve 85% faster access management and ensures a seamless experience for employees.

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Managed Security Service Providers (MSSP)

CAL IT Group View CAL IT Group

CAL IT Group provides comprehensive Managed IT and cybersecurity services in Orange County, acting as your outsourced IT department with specialized MSSP expertise. Our certified professionals safeguard your business data and networks against sophisticated threats, ensuring regulatory compliance and minimizing breach risks. We deliver tailored, integrated solutions designed to protect your critical assets and support seamless business operations.

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Data Loss Prevention (DLP)

Calamu View Calamu

Calamu delivers an advanced software-defined storage security and resiliency platform designed to safeguard your data across any storage environment. By intelligently fragmenting data into secure 'data harbors', Calamu eliminates the risk of data breaches and ransomware attacks, rendering stolen data completely worthless to cybercriminals. This innovative approach provides unparalleled data resilience, ensuring near-infinite availability and automatic self-healing capabilities against cyber threats.

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Security Orchestration, Automation, and Response (SOAR)

CalCom View CalCom

CalCom Hardening Solution (CHS) for Microsoft OMS empowers IT and security teams to proactively maintain a secure and resilient server environment. By simulating the impact of security baseline changes on production services, CHS prevents costly outages and streamlines operational workflows. Its intelligent approach ensures continuous hardening and monitoring, allowing organizations to confidently adapt to evolving threat landscapes and regulatory demands.

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Network Visibility & Control

Calculus Networks View Calculus Networks

Calculus Networks is your trusted global ICT partner, empowering businesses and governments worldwide with advanced cybersecurity and agile innovation. We specialize in delivering secure, cutting-edge technology solutions that optimize Total Cost of Ownership (TCO) and fortify your digital presence. Partner with us to navigate the complexities of the evolving digital landscape and achieve robust, secure network infrastructure.

CC

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Cybersecurity Consulting

Caldew Consulting View Caldew Consulting

Caldew Consulting delivers expert Information Assurance and Cyber Security consultancy, navigating the complete security lifecycle for public and private sector organisations across the UK. With two decades of experience, we specialize in designing and implementing robust IT systems and infrastructure, ensuring effective information governance and proactive risk management for businesses and government departments nationwide.

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Cloud Security

Calero Software View Calero Software

Calero Software offers comprehensive Communications and Cloud Lifecycle Management (CLM) solutions, empowering enterprises to streamline the administration of voice, mobile, and unified communications services. By enabling robust cost control, service optimization, and enhanced security, Calero ensures efficient and productive management of fixed and mobile networks. The platform also integrates with solutions like DigitalStakeout for proactive cybersecurity and Locklizard for PDF document protection, providing a holistic approach to operational and data security.

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Managed Security Service Providers (MSSP)

Calian Group View Calian Group

Calian Group is a diversified Canadian company dedicated to empowering organizations across Advanced Technologies, Health, Learning, and IT & Cyber Solutions. Specializing in proactive cybersecurity, managed IT services, and IT/cloud modernization, Calian delivers robust solutions designed to enhance scalability, efficiency, agility, and ensure round-the-clock protection against evolving cyber threats. Partner with Calian to drive digital transformation and secure your business for sustained growth and performance.

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Cybersecurity Consulting

Caliber Security Partners View Caliber Security Partners

Caliber Security Partners is a comprehensive information security firm dedicated to fostering long-term client relationships through a broad spectrum of tailored security services. Our holistic approach ensures sustained value delivery, addressing the diverse and evolving security needs of organizations at any maturity level. We pride ourselves on a business ethos built on integrity, hard work, and unwavering dependability, setting us apart by consistently prioritizing client well-being over transactional gains.

CC

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Cybersecurity Consulting

California Cybersecurity Institute (CCI) - Cal poly View California Cybersecurity Institute (CCI) - Cal poly

The California Cybersecurity Institute (CCI) at Cal Poly, San Luis Obispo, is a pioneering multi-agency initiative dedicated to fortifying California's digital defenses. By integrating advanced cybercrime forensics with statewide tactical response training, CCI serves as a vital hub for innovation and workforce development. This unique 'Learn by Doing' environment empowers students and faculty to conduct cutting-edge research and training alongside law enforcement and cybersecurity experts, shaping critical cyberstandards and fostering resilience against emerging threats.

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Security Orchestration, Automation, and Response (SOAR)

CallCabinet View CallCabinet

CallCabinet is a leading cross-platform SaaS provider delivering comprehensive, end-to-end compliant call recording, advanced AI-driven conversation analytics, and automated quality assurance. Empowering calling centers, conferencing, and contact centers across all industries, CallCabinet offers a unified, single-pane-of-glass interface for its cutting-edge cloud-native solutions. Leverage next-gen AI and specialized machine learning for real-time, unparalleled business intelligence, ensuring future-proof regulatory compliance and driving operational excellence.

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Authentication & Authorization

Callsign View Callsign

Callsign empowers organizations to identify and secure every user interaction across web, mobile, and physical touchpoints. Leveraging deep learning and real-time risk intelligence, Callsign's platform combines advanced analytics with adaptive multi-factor authentication to deliver unparalleled security and a frictionless user experience. By dynamically adjusting authentication requirements based on behavioral and threat analysis, Callsign effectively detects and mitigates fraud while optimizing access for legitimate users.

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CalypsoAI View CalypsoAI

CalypsoAI empowers national security and highly-regulated industries to effectively manage complex AI risks. Addressing critical gaps in validating, monitoring, and securing autonomous systems, CalypsoAI accelerates the development of Trusted AI through solutions for accreditation and defense against adversarial machine learning attacks. Acquired by F5 in 2025, our actionable software provides essential ground truth on AI performance, reliability, and security, integrating human oversight into the AI lifecycle for deep insights and robust stress testing.

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Managed Security Service Providers (MSSP)

Calyptix Security View Calyptix Security

Calyptix Security empowers small and medium-sized businesses to fortify their networks, driving profitability and safeguarding investments. Designed specifically for organizations up to 350 users, our solution simplifies cybersecurity management, eliminating the complexity often found in enterprise-grade products. Experience proactive network protection, flexible partnership models, and dedicated support from US-based cybersecurity engineers.

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Cybersecurity Consulting

Cambray Solutions View Cambray Solutions

Pioneering the recruitment of highly skilled technical, managerial, and executive talent, Cambray Solutions, now a part of EY, offers a comprehensive suite of IT staffing and consulting services. As a national organization, we cater to diverse industries, providing contract, permanent placement, consulting, and project management solutions. Our dedicated experts excel in delivering top-tier IT professionals, including those with security clearances and expertise in cutting-edge technologies, to meet your most demanding, time-sensitive needs.

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Open Source Intelligence (OSINT)

Cambridge Cybercrime Centre View Cambridge Cybercrime Centre

The Cambridge Cybercrime Centre is a leading interdisciplinary initiative dedicated to understanding and combating cybercrime through data-driven academic research. By integrating expertise from Computer Science and Technology, Criminology, and Law at the University of Cambridge, we leverage unique access to substantial datasets to build one of the world's largest and most diverse collections of cybercrime intelligence. Our advanced analytical methods extract insights into criminal activity 'in the cloud', enabling the development of novel detection systems and informing collaborations with law enforcement for effective interventions.

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Know Your Customer (KYC) & Anti-Fraud

Cambridge Intelligence View Cambridge Intelligence

Cambridge Intelligence specializes in transformative network visualization solutions designed to illuminate intricate relationships within complex, connected data. We empower organizations across cybersecurity, fraud detection, and intelligence analysis to uncover hidden trends, gain actionable insights, and make faster, more informed decisions. Our expertise allows you to visualize vast, connected datasets, identify sophisticated fraudulent activities, and isolate critical communications patterns, cutting through the noise to focus precisely on what matters most.