Top 10 Virtual CISO Providers in 2026 (And How to Actually Choose One)

There are hundreds of firms selling virtual CISO services in 2026, and most lists of them are written by people who have never run a security program. This one is different in two ways. First, we run a vCISO practice ourselves, so yes, BlueRadius is on the list, clearly marked, and you should apply the same skepticism to our entry as to every other. Second, the point of this list is not the ranking. It is the evaluation criteria at the end, because the gap between a good vCISO engagement and a bad one is bigger than the gap between any two firms on this page.

Quick grounding on price so the rest makes sense: vCISO retainers in 2026 generally run $3,000 to $20,000 per month, with most mid-market engagements landing between $6,000 and $15,000. A full-time CISO costs $200,000 to $400,000 or more in salary alone. The full math is in our vCISO cost guide.

The list

1. BlueRadius

Disclosure: this is us. BlueRadius is a Texas-based cybersecurity firm delivering vCISO leadership, managed security, and audit-ready compliance for regulated mid-market companies: banks, credit unions, healthcare, manufacturing, and professional services firms. What we would tell you to compare us on: every engagement runs on a security-program platform (Radius360), so clients get a live risk register, evidence collection from their actual tools, and board reporting as a byproduct of the work rather than a quarterly slide-deck scramble. We publish our thinking constantly, including breach research like the credit union incident report and the accounting firm incident report, so you can judge the quality of the work before you ever talk to us. Start with the free assessment if you want to see the methodology firsthand.

2. Fractional CISO

One of the most established vCISO firms in North America, based in the Boston area and focused on scaling technology companies. Known for quantitative risk assessment and structured programs aligned to SOC 2, ISO 27001, HIPAA, and CMMC. If you are a Series B SaaS company that needs a security program built to survive enterprise procurement, they have done that job many times.

3. SideChannel

A publicly traded vCISO provider that assigns a named security executive, typically someone who has held real CISO or CSO roles, and can start within two weeks. They publish engagement pricing in the $3,000 to $12,000 per month range, which is rarer than it should be in this market, and pair advisory work with Enclave, their zero-trust networking platform.

4. Kroll

The enterprise end of this list. Kroll's virtual CISO advisory sits inside one of the largest incident response and risk consulting practices in the world, staffed with former CISOs and backed by their threat intelligence operation. If your board wants a name it already recognizes, or your risk profile involves regulators on multiple continents, this is that tier. Expect enterprise process and enterprise pricing.

5. DeepSeas

DeepSeas pairs vCISO leadership with its managed detection and response operation, which means the strategy layer and the 24/7 monitoring layer come from the same provider. Their vCISOs can draw on in-house red team and AI-driven risk analysis. The bundling is the appeal and also the thing to evaluate: strategy advice from the company that also sells you the monitoring deserves an independent gut check.

6. CISOSHARE

A repeat Inc. 5000 firm with a documented, program-development methodology, notably strong with nonprofits and growing organizations working through ISO 27001, SOC 2, HIPAA, and CMMC. They publish a large amount of their methodology openly, which we respect, since it lets buyers evaluate the approach before signing.

7. Vistrada

Fractional CISO services with a deliberately vendor-neutral stance: their CISOs operate free of tooling partnerships, which matters when the advice you are paying for is which security investments to make. A good fit when the board wants guidance untangled from anyone's product margin.

8. Interlaced

A vCISO offering tailored to growing SaaS companies that blends advisory with hands-on execution, from gap assessment through policy creation and operational oversight. Positioned for teams that need the vCISO to do the work, not just recommend it.

9. Klavan Security

Fractional CISO services for SMBs and scale-ups built by ex-military and ex-intelligence practitioners, with unusual depth across both cyber and physical security. Worth a look for companies whose risk genuinely spans DevOps, infrastructure, and physical operations rather than living purely in the cloud.

10. TrustedCISO

A compliance-forward vCISO provider with depth in risk management and security program execution. Representative of a large class of solid boutique firms: a small bench of experienced practitioners, framework-driven delivery, and pricing well below the enterprise consultancies.

How to actually choose (the part that matters)

The firms above differ less than their websites suggest. The engagement structure is where outcomes diverge. Ask every finalist these questions:

• Who exactly does the work? A named practitioner with relevant industry background, or a rotating bench? Ask to meet the person, not the sales engineer.
• What does month three look like? A real answer names deliverables: a scored risk register, a policy set mapped to your framework, a remediation plan with owners. A vague answer means you are buying meetings.
• What runs the program between meetings? If the answer is spreadsheets and a shared drive, the program is the person's memory. Platform-backed practices leave you a living system: risks, evidence, and decisions you keep even if you change providers.
• How does the board see progress? Ask for a sample board report. If it is a vulnerability count, keep shopping. Our guide on board reporting shows what good looks like.
• Does the price map to your compliance driver? A firm that quotes before asking whether you face SOC 2, HIPAA, FFIEC, or CMMC is quoting hours, not outcomes. For SOC 2 specifically, see how a vCISO runs a SOC 2 program.

Frequently Asked Questions

How much do virtual CISO services cost in 2026?

Monthly retainers generally run $3,000 to $20,000, with most mid-market engagements between $6,000 and $15,000 per month. Hourly advisory runs $200 to $400, and project-based work $5,000 to $50,000. A full-time CISO, by comparison, costs $200,000 to $400,000 or more in base compensation. See the full cost breakdown.

What is the difference between a vCISO and an MSSP?

An MSSP operates security tools and monitors alerts. A vCISO owns strategy: risk decisions, policies, compliance programs, and board communication. Mature programs use both, and some providers, including BlueRadius and DeepSeas on this list, deliver them together.

How many hours per month does a vCISO engagement include?

Typical retainers include 10 to 40 hours per month depending on tier. More useful than counting hours is asking what deliverables the retainer guarantees each quarter, because a platform-backed practice produces more program per hour than one running on documents and memory.

When should a company hire a vCISO instead of a full-time CISO?

Below roughly 500 employees, a full-time CISO is usually premature: the strategic workload is real but not forty hours a week, and the $200,000-plus salary buys more security spent on a fractional leader plus actual controls. Companies facing a specific compliance deadline, a cyber insurance mandate, or a customer security questionnaire are the classic starting points.

Can a vCISO get us through SOC 2 or CMMC?

Yes, that is one of the most common engagement types. The vCISO scopes the framework, builds the control set and policies, manages evidence collection, and represents you with the auditor or assessor. Ask any candidate firm how many audits they have taken clients through in your specific framework.

Selection notes: providers were drawn from published industry roundups and evaluated on public information from their own sites. Descriptions reflect each firm's stated positioning; we have no partnership with any firm listed. BlueRadius is included with disclosure because leaving ourselves off a list we are qualified for would be false modesty, and ranking ourselves anywhere but where we would pitch ourselves would be false humility.