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vCISO firms: 9 fractional CISOs to run your security program and SOC 2 readiness.

A vCISO is a senior security leader on a retainer instead of a full-time hire. They own the roadmap, the controls, and SOC 2 readiness, and they sign the management representation letter as your named security owner. These 9 firms run the program up to the audit; an independent CPA firm still issues the report. 8 of them also scope standalone readiness engagements.

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Updated

vCISO firms
9
Also run readiness
8of 9
Typical retainer
$3K-$15Kper month
Independent firms

9 vCISO firms

These firms provide fractional security leadership and run SOC 2 readiness. They own and operate the program; an independent CPA firm (not these firms) issues the report. Listed verified-first; placement never reorders by who pays.

Adversis

REMOTE, USA Β· USA
Verified
Services
Penetration testing, vCISO, Readiness

Best for Β· B2B SaaS companies going up-market (often Series A or B) that need pentests and security advisory which hold up in enterprise buyer security reviews.

Differentiator Β· Founded by operators from Capital One, Okta, and Bishop Fox and creators of the Red Team Maturity Model, pairing offensive testing with the enterprise buyer's perspective.

Penetration testingAI red teamingSecurity advisory / fractional CISOSecurity questionnaire support
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Control and Function

DENVER, CO Β· USA
Verified
Services
Readiness, ISO 27001, vCISO, Compliance consulting
Price signal
Readiness coaching from $8K; full readiness from $15K (published)

Best for Β· SaaS companies of roughly 50 to 300 employees that want fixed-scope, fixed-price SOC 2 readiness driven end to end, with a clean hand-off to an independent auditor.

Differentiator Β· Platform-neutral and operationally led, built on running a SOC 2 Type II program end to end with no MSP or compliance platform, and it never performs the audit itself by design.

SOC 2 Type I and II readinessISO 27001 dual-framework engagementsHIPAA for healthtechFractional IT / CISO leadership
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Fractional CISO

NEWTON, MA Β· USA
Verified
Services
vCISO, Readiness, ISO 27001

Best for Β· Growing companies that need a US-based team to build and run a SOC 2 or ISO 27001 program end-to-end, from gap assessment through audit, rather than just buy compliance tooling.

Differentiator Β· Pairs each client with a two-person team (a virtual CISO plus a cybersecurity analyst) and reports that none of its clients have failed a security audit.

Virtual CISO leadershipSOC 2 program managementSecurity questionnaire responseISO 27001 and GDPR
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Illumen

PACIFIC NORTHWEST, USA Β· USA
Verified
Services
vCISO, ISO 27001, Compliance consulting

Best for Β· Smaller organizations and startups that need GRC and vCISO support to stand up or mature a compliance program across SOC 2, ISO 27001, PCI DSS, or CMMC.

Differentiator Β· A boutique GRC consultancy founded by Pacific Northwest security leaders with 45+ years combined experience; offers framework scoping tools and GRC-platform implementation.

vCISO servicesISO 27001 internal auditGRC platform implementationSOC 2 and PCI DSS readiness
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Latacora

REMOTE, USA Β· USA
Verified
Services
vCISO, Readiness, Compliance consulting

Best for Β· Tech-forward startups and scale-ups that want a full security practice built and run for them, then transitioned in-house, instead of hiring a first security team prematurely.

Differentiator Β· Operates as an embedded, retained security team for high-performing startups (a model it helped popularize), spanning compliance, cloud, and product security for the long haul.

Retained security team / vCISOStartup security programsCloud securityFintech and healthcare security
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Practical Assurance

BOSTON, MA Β· USA
Verified
Services
Penetration testing, Readiness, vCISO
Price signal
Entry 'lay of the land' SOC 2 pentest from $2,800 (published)

Best for Β· Startups and SMBs that need right-sized, affordable penetration testing and hands-on SOC 2 readiness support without the cost and overkill of enterprise engagements.

Differentiator Β· Runs adaptive 'fractional' pentests spread across the year instead of one large annual test, paired with compliance-readiness tooling and fractional-CISO guidance.

SOC 2-scoped penetration testingCompliance readinessFractional CISOStartup and SMB security
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SideChannel

WORCESTER, MA Β· USA
Verified
Services
vCISO, Readiness, ISO 27001

Best for Β· Mid-market companies (roughly 25 to 1,000 employees) facing a SOC 2 requirement, an unanswerable security questionnaire, or a departed CISO who need a named security executive within two weeks.

Differentiator Β· Staffed entirely by former CISOs (its founder co-authored the Wiley NIST CSF book); publicly traded (OTCQB: SDCH) and runs engagements on its RealCISO platform.

Virtual CISO leadershipSOC 2 and ISO 27001 program ownershipBoard and investor reportingSecurity questionnaire and vendor risk
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TrustedCISO

REMOTE, USA Β· USA
Verified
Services
vCISO, Readiness, ISO 27001
Price signal
vCISO packages from $3,000/month (published)

Best for Β· SMBs and government contractors that need one dedicated virtual CISO to get audit-ready for SOC 2, ISO 27001, CMMC, or FedRAMP without hiring a full-time security team.

Differentiator Β· A veteran- and woman-owned firm (VOSB/WOSB) led directly by a 30-year industry veteran and author, reporting a 100% first-attempt audit pass rate.

Virtual CISO leadershipSOC 2 and ISO 27001 readinessCMMC and FedRAMP preparationSecurity questionnaire response
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vCISO.com

PITTSBURGH, PA Β· USA
Verified
Services
vCISO, Readiness, ISO 27001
Price signal
$2,500 two-week Sprint; Strategic vCISO retainer $5,000/month (published)

Best for Β· SMBs and growth-stage startups that want embedded, month-to-month security leadership with SOC 2 readiness and a penetration test bundled into one engagement.

Differentiator Β· A practitioner-led firm (CISSP, OSCP, CREST) that runs compliance and offensive testing inside a single engagement and includes a pentest at no extra cost; month-to-month, no annual lock-in.

Virtual CISO retainerSOC 2 readinessISO 27001 readinessPenetration testing
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What does a vCISO actually do for SOC 2?

A vCISO owns your security program as fractional leadership: they set the SOC 2 scope, choose the controls, write or approve policy, drive readiness and remediation, and act as the named security owner the auditor talks to, including signing the management representation letter. You get a senior, accountable leader without paying for a full-time CISO.

The division of labor is simple: the vCISO designs and decides (which controls, what timeline, Type 1 or Type 2, how to answer a finding) and your engineers implement (MFA, logging, access reviews, evidence). The harder, less visible part is continuity. A vCISO stays through the Type 2 observation period, where do-it-yourself programs most often stall because evidence stops being collected once the team that built the program runs out of energy. That ongoing ownership, not a one-time deliverable, is what you are buying.

When should you hire a vCISO instead of a readiness firm?

Hire a vCISO when no one inside owns security and you need that ownership to persist past the first audit. Hire a readiness firm when you have internal capacity to run remediation and just need an expert to find the gaps and hand you the plan.

Many teams start with a scoped readiness sprint and let it roll into fractional leadership once they see how much ongoing work the program needs. Several firms on this page offer exactly that path. One caution worth holding either way: your SOC 2 auditor may recommend a vCISO, which is convenient but blurs independence. Keep the advisory relationship separate from the audit relationship, and never let the firm that designs and operates your controls be the firm that audits them.

How should you compare vCISO firms?

Compare on who actually does the work, the engagement model, and the hand-off. A useful proposal names the practitioner and their seniority, the monthly hours, what is retainer versus one-time readiness, and a clean separation from the independent auditor.

Ask how many SOC 2 programs the named person has led from readiness through report issuance (the answer should be more than two), whether the same senior person stays on or work drops to juniors after kickoff, and which CPA firms they have worked with. Be wary of anyone promising a Type 2 report in under nine months from a cold start: the observation period alone needs six months. Confirm they will hand off cleanly to a separate CPA firm for the attestation.

Engagement model

A vCISO is ongoing leadership, not a one-off project.

It helps to know where a vCISO sits relative to a readiness firm and the auditor before you scope the work.

Factor vCISOReadiness firmSOC 2 auditor
Engagement Ongoing retainerDefined projectDefined engagement
Owns the program Yes, accountable ownerDuring the projectNo
Signs the rep letter Yes, as named CISONoNo, audits it
Issues the report NoNoYes
Best when No security leadership in-houseYou own remediationControls are operating
Engagement path

How a vCISO runs a SOC 2 program

The vCISO leads the program to the audit; an independent CPA firm attests. Keep ownership and attestation in separate hands.

01Set scope and roadmap

The vCISO defines the SOC 2 scope, the Trust Services Criteria, the target timeline, and a prioritized roadmap mapped to your stack and your buyers. Most teams start with Security, the one required criterion.

02Build and run the program

Control design, policy, evidence, vendor and access reviews, and remediation. The vCISO decides what good looks like and owns the timeline; your engineers implement. The program is tracked, not handed back as a report.

03Hand off to an independent auditor

Once controls are operating, an independent CPA firm runs the audit. The vCISO selects the auditor, manages the relationship, and signs the rep letter, but never attests its own controls.

FAQ

vCISO questions

The leadership, independence, and cost questions to settle before you hire fractional security leadership.

What is a vCISO?

βŒ„
A vCISO (virtual or fractional CISO) is a senior security executive who serves as your Chief Information Security Officer on a retainer instead of as a full-time hire. The role is the same as any CISO; the contract is different. For SOC 2 that means owning the roadmap, choosing the controls, running readiness and remediation, and acting as the named security leader the auditor deals with. A vCISO typically starts in two to four weeks, versus the three to six months it takes to recruit a full-time CISO.

Can a vCISO get us through a SOC 2 audit?

βŒ„
A vCISO can run everything up to the audit: scope, control selection, policy, evidence, readiness, and remediation. They also serve as the named security owner of record and sign the management representation letter, which is exactly what auditors expect from a single accountable security executive. What a vCISO cannot do is issue the report. SOC 2 attestation is performed by an independent licensed CPA firm, and the person who designs or operates your controls should not also be the one auditing them.

vCISO or a readiness firm: what is the difference?

βŒ„
A readiness firm runs a defined engagement: assess gaps, hand you a remediation plan, often help close it, then step back. A vCISO is ongoing security leadership who stays as the accountable owner across audits, vendor reviews, incidents, and the next framework. The split matters most during the Type 2 observation period, where do-it-yourself programs tend to stall because no one owns the cadence. Many of the firms here do both, scoping a readiness project that rolls into fractional leadership.

How much does a vCISO cost?

βŒ„
Most vCISO retainers run from about $3,000 a month for light advisory to $15,000 a month for hands-on program leadership at a scaling company, which works out to roughly $45,000 to $180,000 a year, or about a quarter to a third of a fully loaded full-time CISO. Hourly project work is commonly $200 to $500 an hour. A focused, SOC 2-only push can instead be scoped as a fixed-fee project. Ask each firm to separate the ongoing retainer from one-time readiness work so you can compare like for like.
Quote matching

Need fractional security leadership for SOC 2?

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