FedRAMP 3PAO Rankings

Best FedRAMP 3PAOs: 0 Assessment Firms Compared

FedRAMP assessments must be performed by an A2LA-accredited Third Party Assessment Organization (3PAO). The 0 firms below have FedRAMP work on record in our directory — always confirm current 3PAO accreditation on the FedRAMP Marketplace before engaging.

Get matched for FedRAMP →

ⓘ

How this list is ranked (as of July 26, 2026): independent verification status first, then relevance to this page, then profile completeness (credentials, pricing and timeline transparency, platform integrations), then verified client reviews. Ranking placement cannot be bought and firms do not pay to be listed. 3PAO accreditation status changes over time — verify a firm's current standing on the official FedRAMP Marketplace before contracting. Independent verification of the directory is in progress — until a firm is verified, its data is compiled from public records and labeled accordingly. Full details: how we verify auditors.

Why there is no ranked list here yet

AuditNex only ranks firms we actually track for a framework. We have not yet confirmed FedRAMP engagements for the firms in our directory, and we never fabricate a top-10. Use the criteria below to evaluate providers, or request matches and we will connect you through the network.

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?

By verification status, then profile completeness, then verified client reviews. Accreditation status should always be confirmed on the official FedRAMP Marketplace — our methodology page explains what we verify ourselves.

Browse more auditor rankings

Skip the research — get matched

Tell us your scope once and compare transparent quotes from auditors that actually fit. No sales calls.

Start a quote →