All companies

Engineering services group whose FEV.io arm runs TARA, ISO 21434 work, secure lab testing and vehicle pentests.

Fidelis Security provides cybersecurity solutions for enterprises and government agencies.

Fingerprint provides device intelligence to identify web and mobile visitors and prevent online fraud.

Finite State provides a product security platform for connected devices, automating SBOM generation, vulnerability analysis, and compliance evidence.

Helps organisations deploy AI systems that withstand attackers, auditors and regulators.

Open source intelligence software that collects and analyses online data to detect threats and hidden networks for national security, law enforcement and financial crime teams.

Hardware and software that detect cyber attacks and cargo theft on fleet vehicles, backed by a vehicle SOC.

Flowtriq provides real-time DDoS detection and automatic mitigation for servers and network infrastructure.

Forcepoint provides data security software that controls how AI applications and agents access sensitive information.

Forefront IT Security Services presents itself as a virtual cyber security team for organisations in the United Kingdom.

Forescout provides a platform for managing cyber risk and mitigating threats across IT, OT, IoT, and IoMT devices.

Foresite provides managed detection and response services using agentic AI for security operations.

Provides a data and AI security platform built on confidential computing to protect data in use.

Forter provides a platform that combines fraud prevention, payment optimisation, and abuse prevention for online businesses.

Fortinet provides cybersecurity solutions and services, including networking and security convergence, for enterprises and governments.

Fusion Systems Group is a group of specialised companies serving global corporations from Tokyo to Los Angeles.

Fuzzes compiled ECU and embedded firmware in emulation, finding memory bugs without needing the physical hardware.

G DATA CyberDefense AG is a German cybersecurity company based in Bochum.

Galvanick provides behavioral threat detection for operational technology environments.

genua GmbH is a German IT security company that protects critical and highly sensitive digital infrastructures.

GetReal Security provides deepfake detection and identity verification software for enterprises.

Gigamon sells a deep observability pipeline that collects network traffic and turns it into telemetry for security and monitoring tools.

GitHub is a software development platform where developers, agents, and code come together.

GitProtect.io provides backup and disaster recovery for DevOps tools such as GitHub, GitLab, and Jira.

GLIMPS provides cybersecurity solutions for malware detection and analysis.

Globalgig provides managed security and network services to enterprises across multiple countries.

GMV Innovating Solutions is a technology group that provides solutions, services and products across many sectors.

Beijing firm selling TARA and test software, vehicle test hardware, penetration testing and R155 compliance advice.

World-renowned cybersecurity firm now part of Google Cloud, delivering threat intelligence-led penetration testing and red teaming informed by front-line incident response experience.

UK compliance and cybersecurity consultancy, formerly IT Governance, offering CREST and NCSC CHECK penetration testing alongside governance, risk and compliance services.

Greenbone provides vulnerability management software that scans IT systems for security weaknesses.

GreyNoise Intelligence provides real-time network threat intelligence.

Michigan security research firm offering penetration testing and training for vehicles and other transport systems.

Group-IB provides cybersecurity products and services to prevent digital crime.

Gtd is a technology and telecommunications company with an international presence across seven countries.

Gtd Colombia sells technology solutions for businesses in Colombia.

Gtd Perú provides technology solutions for businesses.

GTMaritime provides secure communication and cybersecurity software for maritime IT teams.

GuardingPearSoftware creates security and anti-cheat tools for Unity game developers.

Guardio provides online protection for individuals and businesses, securing accounts and devices.

Guardsi Cybersecurity is a Brazilian firm that has specialised in penetration testing and offensive security since 2015.

Guardsquare provides mobile app security through code hardening, testing, and threat monitoring.

US-headquartered cybersecurity consultancy with 800+ employees, serving ~40% of the Fortune 500. FedRAMP 3PAO, PCI QSA, and HITRUST accreditations.

HACK KAP provides manual penetration testing, dark-web intelligence, and hacking labs for businesses worldwide.

HackenProof runs a bug bounty and crowdsourced audit platform for blockchain and crypto projects.

World's largest ethical hacker platform with over one million researchers, offering bug bounties and structured penetration testing to the US DoD and Fortune 500.

Indian firm offering vehicle and ECU penetration testing, R155 and 21434 consulting, plus a vehicle SOC.

Hackrate runs crowdsourced security testing and bug bounty programmes for companies.

HackRisk monitors external cyber risks for UK SMEs and provides a security score.

Hackuity provides a platform that aggregates and prioritises vulnerability data to help security teams manage cyber risk.