Fractional CISO Pricing Guide: CISO as a Service Costs in 2026

If you are pricing out a fractional CISO for the first time, the quotes can look chaotic — some firms publish $2,500/month tiers, others quote $20,000/month retainers, and a handful refuse to price at all until you sign an NDA. This guide explains what CISO as a service pricing actually buys, the variables that move the number up or down, and how to choose the right engagement model for your stage of growth.

What is a Fractional CISO?

A fractional CISO (also marketed as a virtual CISO, vCISO, or CISO as a service) is a senior security executive who serves as your accountable security leader on a part-time, subscription basis. Unlike a one-off consultant, a fractional CISO owns your security program end-to-end — strategy, board reporting, vendor risk, incident response leadership, and compliance ownership — without the ~$300K+ all-in cost of a full-time hire.

Fractional CISO Pricing at a Glance

Senticit publishes three transparent CISO as a service tiers. Every tier includes a named executive owner, documented program, and quarterly business reviews.

Sentinel — $2,500/month

• Baseline security program ownership
• Policy library + annual review
• Quarterly risk register update
• Up to one compliance framework (SOC 2 Type I, HIPAA, or NIST CSF readiness)
• Monthly office hours + async Slack access

Best for: SMBs (10–75 employees) starting their first formal security program or preparing for their first customer security questionnaire.

Vanguard — $5,500/month

• Everything in Sentinel, plus:
• Active audit ownership (SOC 2 Type II, HIPAA, ISO 27001, or NIST 800-171)
• Vendor risk management program
• Incident response playbooks + annual tabletop exercise
• Bi-weekly executive sync + board-ready security reporting
• Security awareness training program oversight

Best for: Growth-stage companies (75–250 employees) in regulated industries — healthcare, fintech, SaaS — that need a CISO signature on enterprise deals.

Summit — $10,000/month

• Everything in Vanguard, plus:
• Multiple concurrent compliance frameworks
• M&A due diligence + acquisition integration security
• Customer-facing CISO availability (RFP support, security reviews, prospect calls)
• Weekly executive sync + dedicated technical lead
• 24/7 incident response leadership retainer

Best for: Enterprise SMBs (250+ employees), private equity portfolio companies, or any organization where security is a board-level concern.

What Drives CISO as a Service Pricing?

Three variables explain most of the spread between a $2,500 quote and a $20,000 quote:

1. Engagement frequency. Monthly check-ins cost a fraction of weekly executive syncs with on-demand availability between meetings.
2. Scope of compliance ownership. Owning a single SOC 2 Type I readiness is a different commitment than concurrently driving SOC 2 Type II, HIPAA, and ISO 27001 audits with customer-facing artifact production.
3. Risk surface area. A 30-person SaaS with one production environment is materially less work than a 200-person healthcare company with PHI, BAAs, and clinical integrations.

Other modifiers: regulated industry (healthcare, financial services, defense), incident response availability requirements, whether you need a CISO who will join customer calls, and whether the engagement includes hands-on technical work or executive oversight only.

Fractional CISO vs Full-Time CISO: Cost-Benefit

A full-time CISO in the US commands a fully-loaded cost of $280K–$420K annually (base $220–320K + bonus + equity + benefits + recruiter fees). That investment makes sense for organizations with 500+ employees, multiple regulated business units, or a security function that needs a permanent seat at the executive table.

For most SMBs and mid-market companies, fractional CISO services deliver 70–80% of the strategic value at 15–30% of the cost:

Engagement	Annual Cost	Best Fit
Sentinel (vCISO baseline)	$30,000	10–75 employees, 1 framework
Vanguard (fractional CISO)	$66,000	75–250 employees, regulated
Summit (executive CISO)	$120,000	250+ employees, multi-framework
Full-time CISO hire	$280,000–$420,000	500+ employees, board-mandated

What Should You Ask Before Signing?

• Who is the named CISO assigned to my account, and what is their certification stack (CISSP, CISM, CCSP)?
• Is the engagement priced as a flat retainer or hours-based? (Flat retainer is preferable — it aligns incentives with outcomes, not invoicing.)
• What is included vs. billed separately? (Penetration testing, audit fees, and SIEM tooling are typically pass-through costs.)
• What is the off-boarding plan? Will the firm leave documentation behind?
• Can the CISO sign customer security questionnaires and join prospect calls?

Ready to Scope an Engagement?

Every Senticit fractional CISO engagement starts with a free 30-minute scoping call to confirm tier fit and timeline. Review the full CISO as a service offering or book a scoping call.