Attestio
For CISOs, CTOs, and compliance leads

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The independent marketplace for PCI QSA, SOC 2, ISO 27001, HITRUST, and HIPAA auditors. Browse verified firms by region, certification, and service area — no pay-per-lead tricks, no referral fees.

Sourced from PCI SSC official list
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610
Auditor firms indexed
50
U.S. states covered
67
Global firms
0
Referral fees
PCI QSA

Coverage you can actually use

442 firms indexed from the PCI Security Standards Council's official list. Filter by region — every U.S. state, plus international coverage from firms that span continents.

209
U.S. firms
serve all 50 states
172
Multi-region
2+ PCI SSC regions
67
Global
4+ regions
51
Associate QSA
support program
Browse all 442 QSA firms →
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How it works

1

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Filter by geography, certification, and Associate QSA support. See the whole market, not just who paid for placement.

2

Compare verified profiles

Region coverage, languages, primary contacts, and website. Verified profiles get a badge and a richer listing.

3

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Reach out via the firm's own contact info. No intermediary, no referral fees, no commissions paid to Attestio.

For audit firms

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Free basic listing from the PCI SSC scrape. Upgrade to Verified ($99/mo) for a richer profile, contact visibility, and the badge that signals legitimacy to procurement teams.

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