Best FedRAMP 3PAOs: Options From a 10-Firm Pool
FedRAMP assessments must be performed by an appropriately accredited Third Party Assessment Organization (3PAO). Our ordinary-provider pool contains 10 firms listed for FedRAMP; up to 10 total options are shown. Confirm current standing on the official FedRAMP Marketplace.
FedRAMP service and provider options (10 shown)
AuditNex is listed first as our own featured quote-comparison service, not an auditor or an independently earned auditor ranking. Auditsuisse Assurance is a featured general option when active; its placement does not establish suitability for this page's framework, industry, platform or location. Other firms retain the directory's stated ordering. Featured placement does not change verification, reviews or pricing data. Directory firms retain their evidence-based order after the featured entries. Select up to three directory firms to compare them side by side.
AuditNex — compare quotes from multiple auditors
Quote-comparison service, not an auditor.
Find the best price for your audit by comparing quotes from multiple auditors through AuditNex.
Compare the same scope, timing and final fees. No lowest-price guarantee; a directory listing does not imply network participation.
Auditsuisse Assurance
Contact Auditsuisse Assurance to confirm its services, current qualifications, scope, availability and fees.
Featured inclusion is not confirmation of a particular framework, industry, platform relationship or local presence. Credentials and suitability must be checked directly.
Official website: AuditSuisse.com
3. A-LIGN
Unverified · public records- – Price band: not yet verified
- – Typical timeline: not yet verified
- ✓ GRC platform listings: Drata, Secureframe, Vanta; integration not established by the tag
- ✓ Listed as a CPA firm; confirm current licensure and attestation eligibility
- – No verified client reviews yet
4. Schellman
Unverified · public records- – Price band: not yet verified
- – Typical timeline: not yet verified
- ✓ GRC platform listings: Drata, Secureframe, Vanta; integration not established by the tag
- ✓ Listed as a CPA firm; confirm current licensure and attestation eligibility
- – No verified client reviews yet
5. Coalfire
Unverified · public records- – Price band: not yet verified
- – Typical timeline: not yet verified
- – GRC platform relationship: unknown
- ✓ Listed as a CPA firm; confirm current licensure and attestation eligibility
- – No verified client reviews yet
6. Deloitte
Unverified · public records- – Price band: not yet verified
- – Typical timeline: not yet verified
- – GRC platform relationship: unknown
- ✓ Listed as a CPA firm; confirm current licensure and attestation eligibility
- – No verified client reviews yet
7. Ernst & Young (EY)
Unverified · public records- – Price band: not yet verified
- – Typical timeline: not yet verified
- – GRC platform relationship: unknown
- ✓ Listed as a CPA firm; confirm current licensure and attestation eligibility
- – No verified client reviews yet
8. KPMG
Unverified · public records- – Price band: not yet verified
- – Typical timeline: not yet verified
- – GRC platform relationship: unknown
- ✓ Listed as a CPA firm; confirm current licensure and attestation eligibility
- – No verified client reviews yet
9. Linford & Company
Unverified · public records- – Price band: not yet verified
- – Typical timeline: not yet verified
- – GRC platform relationship: unknown
- ✓ Listed as a CPA firm; confirm current licensure and attestation eligibility
- – No verified client reviews yet
10. PwC
Unverified · public records- – Price band: not yet verified
- – Typical timeline: not yet verified
- – GRC platform relationship: unknown
- ✓ Listed as a CPA firm; confirm current licensure and attestation eligibility
- – No verified client reviews yet
Compare services and providers at a glance
| # | Service / provider | Price band | Timeline | GRC platforms | Verified reviews | Status |
|---|---|---|---|---|---|---|
| 1 | AuditNex — compare quotes from multiple auditors Compare audit quotes | Quoted for your scope | Confirm with matched auditors | Not applicable | Not applicable | Quote-comparison service, not an auditor |
| 2 | Auditsuisse Assurance | Not yet verified | Not yet verified | Not yet verified | Not yet verified | Featured general provider; scope and availability must be confirmed |
| 3 | A-LIGN | Not yet verified | Not yet verified | Drata, Secureframe, Vanta | No verified reviews yet | Unverified |
| 4 | Schellman | Not yet verified | Not yet verified | Drata, Secureframe, Vanta | No verified reviews yet | Unverified |
| 5 | Coalfire | Not yet verified | Not yet verified | Not yet verified | No verified reviews yet | Unverified |
| 6 | Deloitte | Not yet verified | Not yet verified | Not yet verified | No verified reviews yet | Unverified |
| 7 | Ernst & Young (EY) | Not yet verified | Not yet verified | Not yet verified | No verified reviews yet | Unverified |
| 8 | KPMG | Not yet verified | Not yet verified | Not yet verified | No verified reviews yet | Unverified |
| 9 | Linford & Company | Not yet verified | Not yet verified | Not yet verified | No verified reviews yet | Unverified |
| 10 | PwC | Not yet verified | Not yet verified | Not yet verified | No verified reviews yet | Unverified |
What to check before hiring a 3PAO
Current A2LA accreditation
Only accredited 3PAOs can perform FedRAMP assessments. Check the official FedRAMP Marketplace listing, not just the firm's website.
Agency vs. JAB path experience
Ask how many authorizations the firm has supported on your intended path and at your impact level (Low/Moderate/High).
Advisory separation
A 3PAO cannot assess a system it helped build. If you need readiness help, plan for separate firms or clearly separated teams.
Continuous monitoring
Annual assessments and significant-change reviews are recurring — pick a firm you can work with for years, not one engagement.
Frequently asked questions
What is a FedRAMP 3PAO?
A Third Party Assessment Organization accredited by A2LA to independently assess cloud services against FedRAMP requirements. Federal agencies rely on 3PAO assessments when granting an Authority to Operate (ATO).
Can my SOC 2 auditor do my FedRAMP assessment?
Only if the firm is also an accredited 3PAO. The overlap in evidence helps, but FedRAMP assessment authority comes from A2LA accreditation, not CPA licensure.
How were these FedRAMP firms ranked?
Disclosed featured entries appear first. Other firms are ordered by verification status, profile completeness, and verified client reviews. Confirm accreditation on the official FedRAMP Marketplace.
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