Onion Security Ltd
Onion Security Ltd is a London-based information security consultancy with 20 years of experience in cybersecurity for financial services. Our focus is the security and continuity of operations—we understand the demands placed on technology teams and are here to help. We support UK fintechs and investment firms in achieving and maintaining continuous compliance with ISO 27001, SOC 2, GDPR, and other regulatory frameworks. As a certified Vanta Partner and CISSP-led team, we offer hands-on support with certification readiness, policy development, risk management, and virtual CISO services. Whether you're launching a startup or scaling into regulated markets, we act as an extension of your team—ensuring you're audit-ready, client-confident, and resilient to risk. Core Services: • ISO 27001 & SOC 2 Compliance • Vanta Implementation & Trust Centre Setup • Virtual CISO & GRC Leadership • Risk Assessments & Policy Development • Penetration Testing via Trusted Partners • Continuity & Recovery – Build resilience through BIAs and DR planning Book a free consultation at
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