Fractional CISO Services for Growing Companies

A fractional CISO serves as your Chief Information Security Officer on a part-time basis — typically 10 to 40 hours per month. The scope is the full CISO function: security strategy, compliance program management, board reporting, vendor risk, incident response leadership, and executive representation in enterprise sales cycles. What's different is the time commitment, not the responsibility.

A fractional CISO makes sense when you need CISO-level leadership but can't yet justify a $250K to $400K annual salary. Typical triggers: between 50 and 500 employees, pursuing SOC 2 or a first compliance audit, selling into enterprise accounts that demand security questionnaires, preparing for a funding round or acquisition, or recovering from a security incident. Many companies eventually hire a full-time CISO — the fractional engagement bridges the gap.

Investors and acquirers increasingly perform cybersecurity due diligence — reviewing your security posture, compliance program, and incident history. A fractional CISO prepares and presents the diligence package, answers investor and acquirer questions, and addresses findings before they become deal blockers. Companies entering a round or an M&A process with a named CISO on the team transact faster and at better valuations.

The terms are used interchangeably in the industry. "Fractional CISO" emphasizes the part-time time commitment and is often used by finance-minded buyers (CFOs, PE firms, boards). "Virtual CISO" or "vCISO" emphasizes the remote delivery model and is often used by technology-minded buyers (CTOs, engineering leaders). The underlying service is the same. Explore our detailed virtual CISO services page for engagement tiers and pricing.

Yes. SOC 2 is one of the most common drivers for hiring a fractional CISO. A fractional CISO leads the scoping, performs the cybersecurity risk assessment, builds the policy library and control environment, manages the gap remediation, coordinates with your auditor, and represents your program during the audit. SOC 2 Type I is typically 60 to 90 days from engagement start; Type II requires an additional observation window of 3 to 12 months.

Fractional CISO engagements typically range from $4,000 to $17,000 per month depending on hours committed, program maturity, and compliance complexity. Most growth-stage companies engage in the $7,000 to $11,000 range for active program management. Compare that to a full-time CISO at $250,000 to $400,000 annually plus benefits and equity — the fractional model saves 60 to 80 percent for comparable leadership.