PCI DSS assessment firms
18 PCI assessment practices, grouped by the buyer type they fit best. Each profile links to the firm's website. We are an independent directory -- not an assessment firm, and these listings are not paid placements or endorsements.
Provenance: profiles are compiled from each firm's public materials (September 2026); every price carries a source label. All 18 firm websites were load-verified September 2026 -- the row-level verification log is on our methodology page.
For small merchants
SAQ-eligible businesses: small card volume, price-sensitive, need speed. These firms bundle ASV scanning and SAQ support or run efficient small-merchant practices.
| Firm | Type | ROC planning range | Fieldwork window |
|---|---|---|---|
| SecurityMetrics | PCI-focused compliance company | $15K–$75K (published planning range (Sept 2026)) | 4–8 wk |
| ControlCase | Compliance assessment and managed-compliance firm | $15K–$75K (published planning range (Sept 2026)) | 4–8 wk |
| KirkpatrickPrice | Assurance specialist | $15K–$75K (published planning range (Sept 2026)) | 4–8 wk |
| MegaplanIT | PCI-focused assessment firm | $15K–$75K (published planning range (Sept 2026)) | 4–8 wk |
| RSI Security | Cybersecurity and compliance firm | $15K–$75K (published planning range (Sept 2026)) | 4–8 wk |
| CampusGuard | PCI assessment firm focused on education, healthcare, and hospitality | $15K–$75K (published planning range (Sept 2026)) | 4–8 wk |
| HALOCK | Risk management and security assessment firm | $15K–$75K (published planning range (Sept 2026)) | 4–8 wk |
| TraceSecurity | Compliance and security firm | $15K–$75K (published planning range (Sept 2026)) | 4–8 wk |
| Wolf & Company | Regional accounting and advisory firm with PCI practice | Not published — request a scoped quote | Varies — confirm in proposal |
| Prescient Assurance | AICPA-accredited assurance firm | Not published — request a scoped quote | Varies — confirm in proposal |
| BARR Advisory | Cloud-native compliance and assessment firm | Not published — request a scoped quote | Varies — confirm in proposal |
| Linford & Company | CPA firm with PCI assessment practice | $30K–$200K (firm-published price) | 4–12 wk |
Planning ranges are not quotes. See our methodology for how prices are labeled and verified.
For mid-market merchants and service providers
Growing card volume or multi-location footprints: you need a credible ROC-capable assessor, possibly with adjacent frameworks (SOC 2, ISO 27001) on the roadmap.
| Firm | Type | ROC planning range | Fieldwork window |
|---|---|---|---|
| Coalfire | Cybersecurity and compliance assessment firm | $25K–$150K (published planning range (Sept 2026)) | 4–12 wk |
| SecurityMetrics | PCI-focused compliance company | $15K–$75K (published planning range (Sept 2026)) | 4–8 wk |
| LevelBlue (formerly Trustwave) | Managed security services provider with PCI assessment practice | $25K–$150K (published planning range (Sept 2026)) | 4–12 wk |
| ControlCase | Compliance assessment and managed-compliance firm | $15K–$75K (published planning range (Sept 2026)) | 4–8 wk |
| Schellman | Independent attestation and assessment firm | $25K–$150K (published planning range (Sept 2026)) | 4–12 wk |
| A-LIGN | Technology-enabled compliance firm | $20K–$100K (published planning range (Sept 2026)) | 4–10 wk |
| KirkpatrickPrice | Assurance specialist | $15K–$75K (published planning range (Sept 2026)) | 4–8 wk |
| MegaplanIT | PCI-focused assessment firm | $15K–$75K (published planning range (Sept 2026)) | 4–8 wk |
| 360 Advanced | Cybersecurity and compliance assessment firm | $20K–$100K (published planning range (Sept 2026)) | 4–10 wk |
| RSI Security | Cybersecurity and compliance firm | $15K–$75K (published planning range (Sept 2026)) | 4–8 wk |
| CampusGuard | PCI assessment firm focused on education, healthcare, and hospitality | $15K–$75K (published planning range (Sept 2026)) | 4–8 wk |
| HALOCK | Risk management and security assessment firm | $15K–$75K (published planning range (Sept 2026)) | 4–8 wk |
| TraceSecurity | Compliance and security firm | $15K–$75K (published planning range (Sept 2026)) | 4–8 wk |
| Wolf & Company | Regional accounting and advisory firm with PCI practice | Not published — request a scoped quote | Varies — confirm in proposal |
| Sysnet Global Solutions | Global payment-security and compliance company | Not published — request a scoped quote | Varies — confirm in proposal |
| BARR Advisory | Cloud-native compliance and assessment firm | Not published — request a scoped quote | Varies — confirm in proposal |
| Linford & Company | CPA firm with PCI assessment practice | $30K–$200K (firm-published price) | 4–12 wk |
Planning ranges are not quotes. See our methodology for how prices are labeled and verified.
For Level 1 merchants and service providers
ROC-required environments, complex cardholder data environments, or portfolios of merchants -- deep benches, global delivery, and multi-framework breadth.
| Firm | Type | ROC planning range | Fieldwork window |
|---|---|---|---|
| Coalfire | Cybersecurity and compliance assessment firm | $25K–$150K (published planning range (Sept 2026)) | 4–12 wk |
| LevelBlue (formerly Trustwave) | Managed security services provider with PCI assessment practice | $25K–$150K (published planning range (Sept 2026)) | 4–12 wk |
| Schellman | Independent attestation and assessment firm | $25K–$150K (published planning range (Sept 2026)) | 4–12 wk |
| A-LIGN | Technology-enabled compliance firm | $20K–$100K (published planning range (Sept 2026)) | 4–10 wk |
| 360 Advanced | Cybersecurity and compliance assessment firm | $20K–$100K (published planning range (Sept 2026)) | 4–10 wk |
| Sysnet Global Solutions | Global payment-security and compliance company | Not published — request a scoped quote | Varies — confirm in proposal |
Planning ranges are not quotes. See our methodology for how prices are labeled and verified.
All 18 assessor profiles
Coalfire
Coalfire is one of the largest PCI assessment practices in the world, performing hundreds of PCI DSS assessments a year for merchants and service providers of every size. Its PCI practice covers Level 1 ROC assessments, SAQ validation, penetration testing, and ASV scanning alongside broader advisory services.
SecurityMetrics
SecurityMetrics grew up as a PCI scanning vendor and built one of the industry's best-known SMB PCI programs: bundled ASV scanning, SAQ guidance, and QSA-led assessments under one roof. It is a practical pick for merchants that want the scanning, the questionnaire, and the assessor from a single vendor.
LevelBlue (formerly Trustwave)
Trustwave -- now operating as LevelBlue -- has run one of the longest-standing PCI assessment practices in the industry, paired with its managed detection, SpiderLabs testing, and ASV scanning businesses. A fit for organizations that want assessment plus ongoing managed security from the same relationship.
ControlCase
ControlCase is a PCI-centric assessment firm known for fixed-fee engagements and heavy use of its own compliance technology to keep assessment costs predictable. It serves merchants and service providers across retail, hospitality, and SaaS, with a strong mid-market footprint.
Schellman
Schellman is a top-50 attestation firm that stakes its name on assessor independence, with a large PCI practice covering Level 1 ROCs for merchants, service providers, and payment facilitators. It also bundles PCI with SOC and ISO work for multi-framework programs.
A-LIGN
A-LIGN runs a high-volume, technology-enabled PCI practice alongside its SOC, ISO, and FedRAMP work. Its pitch is scale and speed: standardized evidence collection and a large assessor bench for merchants and service providers that need predictable delivery.
KirkpatrickPrice
KirkpatrickPrice is a Nashville-based assurance specialist with a long-running PCI practice supporting SaaS, managed services, fintech, and healthcare clients. It sits between the boutiques and the global firms, with PCI, SOC, and HITRUST under one roof.
MegaplanIT
MegaplanIT is a PCI-centric QSA company serving merchants and service providers, with a practice built around ROC assessments, SAQ validation, and remediation guidance. Its narrow PCI focus suits buyers who want assessors that do this work all day, every day.
360 Advanced
360 Advanced, founded in 2004, delivers integrated assessment, advisory, and testing services across PCI, SOC, ISO, HITRUST, and FedRAMP. Its PCI practice covers Level 1 ROCs and SAQ engagements, useful when PCI is one track of a larger assurance program.
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Get matched quotesRSI Security
RSI Security pairs a PCI QSA practice with security testing and advisory services, serving merchants, service providers, and SaaS companies on the West Coast and nationally. It positions for mid-market buyers that need assessment plus hands-on security help.
CampusGuard
CampusGuard built its name serving colleges, universities, healthcare systems, and hospitality groups -- organizations with sprawling, decentralized card-acceptance footprints. Its PCI practice specializes in multi-location merchants and complex SAQ/ROC scoping.
HALOCK
HALOCK is a long-running risk and security consultancy whose PCI practice serves merchants and service providers in the Midwest and nationally. It is known for its risk-analysis methodology work, which maps well to PCI DSS v4.x targeted risk analyses.
TraceSecurity
TraceSecurity combines a PCI QSA practice with its TraceCSO compliance platform, aimed at community banks, credit unions, and mid-market merchants. The bundled platform-plus-assessor model appeals to organizations that want year-round compliance management, not just an annual assessment.
Wolf & Company
Wolf & Company is a century-old New England accounting firm whose technology-risk practice includes PCI DSS assessments for merchants and service providers. A fit for buyers in the Northeast that prefer a regional firm relationship with partner access.
Prescient Assurance
Prescient Assurance, founded in 2021, positions itself as the security-testing-led assessor for SaaS companies, pairing assessment teams with cloud-native and application-security experience. Its PCI services suit startups that need PCI alongside SOC 2 from one modern firm.
Sysnet Global Solutions
Sysnet is one of the largest dedicated PCI compliance companies in the world, serving acquirers, ISOs, and merchants across dozens of countries. Its managed-compliance model is built for portfolios: acquirers and payment facilitators managing PCI across thousands of sub-merchants.
BARR Advisory
BARR Advisory is a cloud-native assessment firm with PCI DSS services alongside its SOC, ISO, and CMMC practices. It fits SaaS and cloud-first companies that want PCI validation from assessors fluent in AWS, Azure, and GCP architectures.
Linford & Company
Linford & Company is a Denver CPA firm whose PCI practice is unusually transparent about money: it publishes that a PCI audit resulting in a ROC typically runs $30,000–$200,000, and that QSA-assisted SAQ assessments can run up to $40,000. That candor makes it a useful benchmark when comparing quotes.
How we built this directory
- Real firms only. Every listing is an operating PCI assessment practice with a directly load-verified website (September 2026). A verification log is on our methodology page.
- Labeled prices, never quotes. Each firm's planning range is marked firm-published, published planning range, or not published. None of these are quotes -- get scoped fees in writing.
- No fabricated ratings. You will not find star ratings, testimonials, or review counts here -- we have not hired these firms and will not invent social proof.
- No pay-for-rank. Firms cannot pay to be listed, ranked, or recommended. Ever.
- How we make money: when you request quotes, we may introduce you to assessment firms. That never changes what you pay the assessor.
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