Filter verified AI builders by what they build, who they serve, how they engage, and their regulatory readiness — and, on a separate axis, by how much they've proven.
73 providers
Offensive security for the world's leading organizations
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Security work that outlasts the engagement
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Proactive security at scale
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Prevent breaches before they occur
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Adversary-focused defense, identity attack path management, and detection engineering
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Boutique offensive security for Fortune 500 clients.
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Application-security-first pentest lab for web, mobile, IoT and blockchain.
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Offensive-security-only boutique for network, application and OT/SCADA tests.
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Boutique adversarial simulation and vulnerability research for high-risk SaaS and finance
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Take your security seriously.
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One stop shop for organizational security needs
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Boutique AppSec, SSDLC and offensive security consulting
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Independent Manchester-based CREST and CHECK penetration testing consultancy
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Adversary-simulation specialists behind the Web Application Hacker's Handbook
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Strategic offensive security consultancy for UK financial services
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Productised, CREST-accredited pentest-as-a-service for the UK mid-market
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Constant cyber attack subscription red teaming
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Outsourced UK blue team - MDR, incident response and adversary simulation.
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London blue-team consultancy - SOC-as-a-Service, IR and adversarial defence.
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CREST-accredited cyber security services for the whole attack surface
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Provider for manual penetration testing.
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Penetration testing & red teaming for TIBER-EU and DORA.
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Attack emulation by certified experts.
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Transparent, ISO 27001-certified penetration testing and red teaming.
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Ranked on proof, not pay-to-play. Default order is verification level, then record count, then recency — plan tier is never a factor. How we verify →