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PCI QSA companies

Qualified Security Assessor companies listed by the PCI Security Standards Council to assess merchants and service providers against PCI DSS.

414 firms listed · October 2026 snapshot

FedRAMP 3PAOGovRAMP 3PAOPCI QSACMMC C3PAOHITRUST assessorISO 27001 CBSOC 2 services sourced

Aprio, LLP.

Atlanta, GA

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FedRAMP 3PAOGovRAMP 3PAOPCI QSAPCI ASVCMMC C3PAOHITRUST assessorSOC 2 services sourced

ControlCase

Fairfax, VA

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FedRAMP 3PAOGovRAMP 3PAOPCI QSAPCI ASVCMMC C3PAOHITRUST assessorSOC 2 services sourced

RSM US, LLP

Chicago, IL

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FedRAMP 3PAOPCI QSACMMC C3PAOHITRUST assessorSOC 2 services sourced

Tevora

Irvine, CA

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Frequently asked questions

How is this list sourced?

PCI SSC Qualified Security Assessors is the official list, read October 3, 2026. A QSA company assesses PCI DSS compliance. The PCI Security Standards Council does not endorse or recommend any QSA, and companies in remediation are not listed here. Check the live registry for changes.

Are these listings endorsements?

No. Compare the firm's services and confirm current status before engaging an auditor.

Firms are listed from official registries, each with its own as-of date. Locations are shown only where the registry or the firm's own site provides them. A listing records registry status, not an endorsement, and directory information may change. SOC 2 is a CPA attestation report, not a certificate. pa.tax is independent: listed firms pay nothing for inclusion, ranking or referrals, and firms are listed alphabetically.

Confirm current status and scope directly with the PCI SSC Qualified Security Assessors, as of October 3, 2026.