About the Service:
Our vCISO offering provides senior-level leadership to organisations needing strategic clarity, experienced direction, and ongoing security governance. Your dedicated cyber security team helps to drive resilience, manage emerging risks, and embed a long-term security strategy.
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This service gives you access to experienced security leadership without hiring full-time. We help plan, prioritise, and oversee your security programme, keeping governance and risk decisions moving in the right direction.
What’s Included:
Security strategy and multi-year roadmap. Executive and board-level reporting. Governance and policy oversight. Incident advisory and decision guidance. Coaching for internal teams and leadership.
Who this Service is for?
Best suited for organisations without a full-time CISO, scaling organisations needing experienced guidance, or companies seeking strategic security leadership at a lower cost.
Work Process
Penetration Testing Oversight
We provided governance and coordination for penetration testing activities to ensure structured delivery, clear reporting and meaningful remediation outcomes for a large SAP operations business.
Comprehensive Security Reviews
We carried out full spectrum security reviews for clients seeking a clear understanding of their current security posture and practical steps to improve resilience. The assessments covered governance, technology and operational controls.
Hedge Fund Spin-out MSP Selection
We supported a newly formed hedge fund in selecting the right managed service provider by conducting an objective assessment of multiple proposals. This ensured a reliable long term partner aligned to the firm’s operational needs.
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Ninth Seat
“Onion Security worked alongside our existing IT supplier to provide an independent and constructive view of our security position. Their assessment helped us understand where we could strengthen our controls and prioritise future improvements. The guidance they provided was clear, practical and collaborative throughout. We now have a well-defined roadmap that supports our ongoing security strategy, and we are keen to work with them again to ensure we stay ahead of the ever-changing security threats."
Tim Gowing
FryerMiles
"Working with Onion Security has given us greater clarity and structure around how we protect candidate and client information. They made a real effort to understand the flow of data within our recruitment operations and offered guidance that suited the way our teams work. Their steady, knowledgeable support has strengthened our overall approach to security, and we value their ongoing role in helping us maintain strong and compliant practices."
Leo Miles
SportsFi
"Onion Security have been instrumental in guiding us through our ISO 27001 and SOC 2 journey. Their expertise, combined with effective tooling solutions, has helped us build clear and manageable compliance processes. We value the reassurance and support they provide at each stage, and they continue to play a key role in our ongoing security and compliance work."
Justin King
Cunningham Eves Solicitors
"Onion Security supported our firm with clear, practical advice focused on safeguarding client confidentiality and meeting the expectations of our regulators. They quickly understood the nature of our legal work and provided guidance that fitted seamlessly with our existing processes. Their professionalism and measured approach have given us greater confidence in our security arrangements, and they remain a trusted resource for ongoing security and compliance matters."
Christine Eves
Construction Dynamics Solutions
“Onion Security invested the time to understand our firm, our workflows and the expectations of our clients. This allowed them to tailor their support precisely to our needs and provide guidance that was both practical and proportionate. Their work has helped us strengthen our security posture and gain clearer oversight of our compliance obligations. We value their measured, professional approach and are pleased to have them as our trusted security and compliance partner.”
Sam Mattar
Codertonic
"Onion Security provides expert support across our security and compliance needs, including thorough penetration testing that offers valuable insight and assurance. Their advice is clear, reliable and aligned with the way we work, which strengthens our approach without disrupting our development process. They have become a trusted partner for security matters, and I would not hesitate to recommend them."
Chris Hoyes
What is a virtual CISO?
A virtual CISO provides senior cyber security and risk leadership on a flexible basis without the cost of a full time executive.
When should we consider a vCISO or GRC lead?
This is suitable when security risk is increasing, customers demand assurance, or internal teams require strategic leadership.
What does a typical engagement include?
Engagements include security strategy, risk management, compliance oversight, executive reporting and leadership of security initiatives.
How do you work with existing teams?
We work alongside technical and operational teams, providing direction and governance while supporting effective delivery.
How flexible is your level of involvement?
Involvement is tailored to your needs, ranging from advisory support to hands on leadership during audits or incidents.
How do you demonstrate value to leadership?
Value is demonstrated through clear reporting, reduced risk exposure, improved compliance outcomes and alignment with business goals.
Your Trusted Partner
