Choosing a FedRAMP 3PAO
Your Third Party Assessment Organization (3PAO) is the single largest variable in your FedRAMP authorization cost and timeline. A well-matched 3PAO with strong SAR quality can cut agency review time significantly. A poor fit can add 6-12 months and hundreds of thousands in additional cost. Updated 26 March 2026.
3PAO Fee Ranges by Impact Level
FedRAMP Low
Initial assessment
$100,000 - $200,000
Annual ConMon assessment
$30,000 - $60,000
Narrower scope; fewer controls to test. Some 3PAOs charge less for Low due to simplified documentation and testing.
FedRAMP Moderate
Initial assessment
$350,000 - $650,000
Annual ConMon assessment
$80,000 - $150,000
Most competitive market segment. Wide variation in fees based on system complexity, number of components, and boundary scope.
FedRAMP High
Initial assessment
$700,000 - $1,200,000+
Annual ConMon assessment
$150,000 - $300,000+
Fewer 3PAOs are accredited for High impact. Fees are higher and less negotiable. Additional requirements for cleared personnel may apply.
Evaluation Criteria
FedRAMP Accreditation Status
CriticalVerify the 3PAO's accreditation status on the FedRAMP Marketplace. Accreditation is granted by A2LA (American Association for Laboratory Accreditation) and must be current. Lapsed accreditation means assessments cannot be accepted.
Experience at Your Impact Level
Critical3PAOs vary significantly in experience across Low, Moderate, and High impact levels. High impact assessments require specialized expertise in national security controls. Ask specifically how many authorizations at your target level the 3PAO has completed in the past 24 months.
Industry Vertical Experience
HighHealthcare, financial services, and defense-adjacent systems have nuanced control implementations. 3PAOs with experience in your sector understand common implementation patterns and edge cases, reducing back-and-forth during assessment.
Assessment Team Composition
HighAsk who will actually perform the assessment. Some 3PAOs sell with senior personnel and deliver with junior staff. Request the CVs or bios of the specific assessment team, including their individual certification credentials.
Capacity and Scheduling
HighExperienced 3PAOs are heavily booked. Ask about current queue depth and estimated start date. A 3PAO quoting a very fast start may be understaffed or under-experienced. Expect 6-10 weeks scheduling lead time for quality 3PAOs.
SAR Quality and Agency Acceptance
MediumAsk for anonymized examples of Security Assessment Reports or agency references. SAR quality varies significantly. Poorly written SARs with ambiguous findings result in lengthy agency reviews and revision cycles.
Remediation Support
MediumSome 3PAOs offer remediation guidance as part of the assessment scope; others only identify findings. Clarify the boundary. Note: a 3PAO cannot also serve as your compliance consultant for the same system (independence requirement).
ConMon Ongoing Relationship
MediumThe annual assessment subset during continuous monitoring is typically performed by the same 3PAO. Evaluate whether you want to maintain this relationship for 5+ years and factor relationship continuity into your selection.
Questions to Ask 3PAO Candidates
- 1How many authorizations at this impact level has your team completed in the past 24 months?
- 2Who specifically will lead the assessment, and can we review their credentials?
- 3What is your current queue depth and estimated start date?
- 4What is your process when you discover a High finding that was not anticipated?
- 5Can you provide two or three agency references from recent authorization packages?
- 6What do you include in your SAR - do you use pass/fail or graduated findings?
- 7How do you handle disputed findings?
- 8Do you offer continuous monitoring support, and what is that structured as?
- 9Are there any conflict-of-interest constraints that would limit what other support you can provide?
- 10How do you handle significant system changes that occur during the assessment period?
Independence Requirement
3PAOs must maintain independence from the Cloud Service Provider they are assessing. A 3PAO cannot also serve as your FedRAMP compliance consultant, write your SSP, or implement controls for the same system it is assessing. This is enforced by A2LA accreditation rules. You need separate vendors for consulting support and 3PAO assessment services.
Calculate your total FedRAMP budget
3PAO fees are one of four major cost buckets. Use the calculator to estimate your complete authorization investment.
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