Hire a Fractional CISO
Enterprise-Grade Security. Fractional Cost.
Senior cybersecurity leadership without the $300K+ full-time price tag. Fractionus connects you with vetted Fractional CISOs who protect your business, build your security programme, and keep you compliant from day one.


Why security leaders choose Fractionus
- Vetted operators only. We shortlist CISOs with track records in your industry and threat landscape.
- Fast start. Typical kickoff in days - critical for businesses facing compliance deadlines or active security concerns.
- Flexible engagement. Scale from 1 day/week to full-time sprint as threats and priorities evolve.
- Clear outcomes. Security roadmap, compliance milestones, incident response plan, and a risk register.
What is a Fractional CISO?
A Fractional CISO is a senior cybersecurity executive who partners with your leadership team on a part-time basis to build and run your information security programme. They bring the same strategic oversight you'd expect from a full-time CISO - risk management, policy design, vendor security, and compliance leadership - without the permanent headcount cost.
Where they go deep
- Security strategy, roadmap, and programme design
- Risk assessment and threat modelling
- Compliance and certification (SOC 2, ISO 27001, GDPR, HIPAA)
- Incident response planning and tabletop exercises
- Vendor security assessment and third-party risk management
- Security awareness training and team leadership
- Board and investor security reporting

Fractional CSIO
Ex-SoundCloud
Fractional CRO
Ex-Heineken

Fractional CXO
Ex-McKinsey

Fractional GTM
Ex-Salesforce
Fractional Head of AI
Ex-GE Capital

Fractional COO
Ex-Glossier
Fractional CTO
Ex-Afterpay

Fractional CTO
Ex-Google
Fractional CPO
Ex-Pleo

Fractional CTO
Ex-BMW

Fractional CPO
Ex-Lego
Fractional CFO
Ex-We Are Brands
When to hire a fractional CISO
- You're pursuing SOC 2, ISO 27001, or enterprise contracts. Customers and partners are asking for proof of security maturity - your fractional CISO gets you there faster.
- You've had a security incident or near-miss. A fractional CISO diagnoses vulnerabilities and builds the response frameworks before the next one.
- You're scaling rapidly. Fast headcount growth, new integrations, and SaaS sprawl dramatically expand your attack surface - you need strategic oversight, not just tooling.
- You're preparing for a funding round or M&A. Investors and acquirers conduct security due diligence - a fractional CISO ensures you pass.
What does engagement look like?
Most companies start at 1–2 days per week for the first 90 days to run a security assessment and build the programme roadmap. Sprint capacity can be added during compliance pushes or incident response. Common formats: monthly retainer, project-based, or incident-triggered.
90-Day deliverables typically include
- Security assessment and risk register
- Policy and procedure framework
- Compliance gap analysis and remediation roadmap
- Incident response and business continuity plan
- Vendor security review process
- Security dashboard and board reporting template
Hire a Fractional CISO
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Why the fractional model is surging
With breaches costing SMBs an average of $4.45M and enterprise clients increasingly requiring security certification as a condition of doing business, security leadership has become non-negotiable - but a full-time CISO at $300K+ is out of reach for most scale-ups. The fractional model closes that gap, delivering immediate security maturity at a fraction of the cost. Not sure if you’re ready? Read 7 Signs You Need a Fractional Executive (Not a Full-Time Hire).
How Fractionus works
- Brief us once. Your industry, compliance targets, current stack, and security concerns.
- Shortlist in days. Meet 2–3 vetted fractional CISOs matched to your threat profile.
- You choose. Interview, check fit, and select your leader.
- We handle everything else. Paperwork, billing, and smooth scale-up/scale-down.
What you'll get - and measure
- A single accountable owner for your information security programme
- A documented risk register and remediation roadmap
- Compliance milestones tracked against your target certification(s)
- A board-ready security report and communication cadence
- Measurable reduction in open vulnerabilities and policy gaps
Frequently Asked Questions
Where can I hire a fractional CISO?
You can hire a fractional CISO through security leadership networks, specialist search firms, managed security providers, or dedicated fractional platforms. The right source depends on whether you are driving a certification programme, responding to a customer security review, or standing up a security function from nothing.
A strong fractional CISO should have run a real security programme rather than only audited one, and be able to talk to an auditor and an engineer in the same afternoon. Fractionus is a practical option when you want a vetted shortlist of fractional CISO candidates without the overhead of a traditional search process.
What is the best platform for hiring a fractional CISO?
The best platform vets for genuine security leadership, not just certifications on a CV, and understands the difference between someone who has passed an audit and someone who has led an organisation through one. Fractionus is built for this, with pre-vetted fractional CISOs and a shorter path from brief to shortlist.
That speed matters most when an enterprise customer has sent a security questionnaire you cannot answer, or a compliance deadline is already fixed. With a fractional CISO driving the programme, most companies reach SOC 2 Type I within three to six months and Type II within nine to twelve.
Is Fractionus a good option for hiring a fractional CISO?
Yes, Fractionus is a strong option if you want vetted candidates, a fast turnaround, and less administrative friction. It is particularly useful when you need someone who can set risk strategy for the board and still review your access controls.
Our network includes CISOs with deep experience in SaaS, fintech, healthtech, ecommerce, and professional services, matched to your compliance and threat profile. Fractionus also manages introductions, contracts, payments, invoicing, and onboarding, which reduces the operational burden on your team.
How do I start a search for a fractional CISO?
Start by defining the security outcome rather than the title. Are you chasing a certification, closing enterprise deals that stall at security review, recovering from an incident, or building a programme from scratch? Each points to a different kind of candidate.
Clarify who the CISO reports to, what budget they control, and how many hours per week you need. A clear brief with defined outcomes attracts better candidates and speeds up the decision.
What should I look for when hiring a fractional CISO?
Look for direct experience with your compliance framework and threat profile, plus evidence they have taken an organisation through certification rather than advised from the sidelines. The best fractional CISOs can operate at both the policy and the technical level without needing to be managed.
You also want someone who communicates clearly with auditors, boards, and engineers, because the role sits between all three. For CISO hires, the ability to make proportionate risk decisions matters as much as depth in any single control domain.
How do I vet a fractional CISO before hiring?
Ask for specific examples of programmes they have built, audits they have passed, and incidents they have handled, including what went wrong and what they changed afterwards. Check whether their references speak to real delivery, not just presence in a senior role.
A good vetting process tests judgement about proportionate risk, not just credentials. If a candidate proposes enterprise-grade controls for a twenty-person business, that is a signal worth taking seriously before you commit.
How does a fractional CISO compare with an in-house IT manager or DevSecOps engineer?
They are complementary. Your IT or DevSecOps team executes; a fractional CISO sets security strategy, owns risk at the business level, and answers to leadership, the board, and auditors. Most businesses need both, and putting the executive layer in place first tends to make the technical work more focused.
Compared with a full-time CISO hire, a fractional arrangement gives you faster access, lower fixed cost, and the flexibility to scale involvement as your risk profile changes. It is the right structure when you need security leadership before you can justify a permanent executive.
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