Section 6.02.1 - 3PAO Vendor Brief
DOC-REF: FRC-3PAO-COALFIRE-001
Coalfire FedRAMP Cost: What a Coalfire 3PAO Engagement Costs in 2026
Coalfire is the highest-volume FedRAMP Third Party Assessment Organization (3PAO) in the market. For a FedRAMP Moderate engagement in 2026, plan for $400,000 to $700,000 of Coalfire fees on the initial assessment, plus optional readiness and recurring continuous monitoring (ConMon) work. This brief explains what that buys, where Coalfire is strongest, and how a CSP should think about Coalfire versus the next two or three obvious alternatives.
Headline
Coalfire is named in roughly a third of public FedRAMP Marketplace authorizations as the assessing 3PAO. A Coalfire Moderate engagement is typically $400K to $700K for the initial assessment, with annual continuous monitoring recurring at $120K to $260K per year.
Section A
Who Coalfire is, and why they dominate the FedRAMP 3PAO market
Coalfire is a Colorado-headquartered cybersecurity advisory and assessment firm that has held FedRAMP 3PAO accreditation since the program's first cohort of assessors was named by the American Association for Laboratory Accreditation (A2LA) in 2013. Of the roughly forty currently accredited 3PAOs listed on the FedRAMP Marketplace, Coalfire performs the largest share of initial assessments and annual continuous monitoring engagements. That volume is the central fact of working with Coalfire on FedRAMP: it determines their pricing, their delivery model, and the way federal agencies receive their Security Assessment Reports.
The firm's FedRAMP practice is consolidated under the Coalfire Federal brand, which is the entity that holds the formal A2LA accreditation. Coalfire Federal also holds other federal accreditations including PCI QSA, HITRUST CSF Assessor, and the StateRAMP 3PAO equivalent, which means a CSP working through multiple compliance tracks can sometimes consolidate assessor relationships and avoid duplicate scoping conversations. That said, consolidation rarely produces a headline discount; the practical benefit is mostly project-management efficiency across overlapping evidence collection.
Three structural factors explain Coalfire's market position. First, longevity. Having been in the program from the start, the firm has assessed more boundaries across more architectures than almost any competitor, which gives its assessors depth on edge cases (third-party PaaS components in the boundary, FedRAMP-authorized IaaS layered with non-authorized SaaS, complex interconnections to agency systems). Second, agency familiarity. Federal Authorizing Officials (AOs) reviewing a Coalfire SAR generally know the report's structure, the way findings are characterized, and how the firm communicates risk. Familiar reports move faster through agency review. Third, capacity. Coalfire can staff a multi-assessor team on short notice, which matters when a CSP is racing a sponsoring agency's fiscal-year ATO target.
The trade-off is straightforward. Coalfire is rarely the cheapest 3PAO on a head-to-head bid for the same scope. CSPs sometimes describe the firm's pricing as the FedRAMP market's anchor: bids from competing firms tend to come in 10 to 20 percent below Coalfire's number on the same RFP, partly because Coalfire is widely assumed to be a known quantity and competitors price the discount as a switching incentive.
Section B
Coalfire fee bands for FedRAMP Moderate in 2026
| Engagement Type | Indicative Range | Notes |
|---|---|---|
| Readiness Assessment Report (RAR) | $60K - $120K | Optional pre-assessment to validate readiness before kickoff. |
| Initial Assessment (Moderate) | $400K - $700K | SAP, control testing, SAR. Excludes remediation rework retesting. |
| Penetration Testing (in scope) | $60K - $140K | Required as part of initial assessment for Moderate and High. |
| Annual Assessment (subset) | $120K - $260K / yr | Year-over-year recurring ConMon testing. Schedule-driven. |
| Significant Change Re-Test | $25K - $90K per SCR | Triggered by boundary or service-architecture changes. |
These ranges are indicative for a typical commercial SaaS CSP pursuing Agency ATO at FedRAMP Moderate impact, with a single primary cloud service provider (AWS GovCloud, Azure Government, or GCP Assured Workloads) and a boundary that includes between two and six production services. Outside that envelope, fees move quickly. A CSP layering a moderately complex multi-region architecture with both IaaS and PaaS dependencies should expect to be at or above the top of the band. A CSP with a tight, single-tenant, single-region architecture and strong inheritance from the underlying IaaS should be at the lower end.
The Readiness Assessment Report is technically optional but is strongly recommended by the FedRAMP PMO for CSPs that have not previously been assessed. The RAR is a much lighter engagement than the full assessment and produces a written attestation that the CSP is ready to enter formal assessment. Going straight into formal assessment without an RAR is permitted but raises the financial risk of rework if the boundary or documentation turn out to be misaligned with FedRAMP expectations.
Penetration testing is a required deliverable for FedRAMP Moderate (and High) under NIST SP 800-53 Rev 5 control CA-8. It can be performed by Coalfire as part of the bundled assessment or unbundled and performed by a separate firm. Bundling is administratively simpler. Unbundling sometimes saves money but adds coordination work. CSPs that have an existing pen-testing vendor with strong FedRAMP-aware methodology often choose to unbundle.
Significant Change Request (SCR) re-test fees are easy to overlook and routinely under-budgeted. Any architecturally significant change to the authorized boundary after ATO (new region, new service in scope, major data-flow change) triggers an SCR. Coalfire's SCR fees are scoped per change, and a CSP that aggressively iterates on its product can rack up multiple SCRs in a year. The significant change cost brief covers this in detail.
Section C
How Coalfire compares to the other top 3PAOs on fee
| 3PAO | Volume Position | Moderate Range | Where They Fit |
|---|---|---|---|
| Coalfire | Highest | $400K - $700K | Default choice; agency-familiar report style; pricing power. |
| Schellman | Top 3 | $350K - $600K | Strong on commercial SaaS; deep on SOC 2 inheritance angles. |
| A-LIGN | Top 3 | $320K - $580K | Sometimes more flexible on phased scoping for cost-sensitive CSPs. |
| Kratos / SecureInfo | Top 5 | $350K - $620K | DoD-adjacent depth; common pick for IL4/IL5 candidates. |
On a head-to-head bid, Coalfire usually sits at or above the top of the range. The Schellman alternative tends to come in slightly cheaper with strong inheritance work for CSPs that already hold a SOC 2 Type II report. A-LIGN is often the most flexible on phased scoping when a CSP wants to break the engagement into smaller commitments tied to budget cycles. Kratos / SecureInfo is the typical choice for CSPs whose roadmap includes DoD Impact Level 4 or 5 work after FedRAMP, where assessor depth on the DoD Cloud Computing SRG matters.
The right question for a CSP is not "which 3PAO is cheapest" but "which 3PAO will let me move fastest through agency review and continuous monitoring without rework." A 20 percent discount on the initial assessment that produces a SAR the sponsoring AO rejects in review is a far more expensive outcome than the headline saving. On that test, Coalfire's report familiarity with agencies is a real benefit, and one that often justifies the premium for CSPs whose business case depends on hitting a fiscal-year ATO date.
Section D
Where Coalfire is structurally strong, and where they're not
Coalfire's strongest engagements are typically large, architecturally complex commercial SaaS CSPs whose boundary includes multiple authorized PaaS components and cross-region replication, where agency sponsors are well-known to the assessment team, and where the CSP's leadership is willing to invest in a tight relationship with the assessor through the multi-year ConMon cycle. In that profile, the firm's institutional knowledge of how to characterize complex risk in a SAR is a meaningful asset.
Coalfire is structurally weaker where price sensitivity dominates the decision and the CSP has a relatively simple architecture that does not require the firm's edge-case depth. A startup SaaS with three engineers in the production environment, a single AWS GovCloud region, and minimal third-party PaaS in the boundary generally does not extract the full premium Coalfire's pricing reflects. For that profile, a smaller 3PAO with motivated principals may produce a better outcome on both fee and engagement attention. The FedRAMP cost for a startup page walks through that calculus.
Coalfire's continuous monitoring practice is a major source of recurring revenue and a key reason CSPs stay with the firm year over year. Switching 3PAOs mid-stream is permitted but operationally costly, because the incoming firm has to rebuild familiarity with the boundary, the inheritance model, and the historical POA&M context. CSPs that anticipate a long-term FedRAMP-authorized product life tend to lock in Coalfire from the beginning rather than switch later.
Section E
How to think about negotiating Coalfire fees
Pure rate negotiation with Coalfire rarely produces meaningful movement. What does produce movement is scope discipline. Three levers consistently work: tighten the authorization boundary before scoping, separate readiness from formal assessment so each phase can be priced and committed independently, and commit to a multi-year continuous monitoring engagement at the outset rather than bidding year-over-year.
Tight boundaries reduce assessor days. Every additional service in the authorization boundary multiplies control-testing effort. CSPs that defer non-essential services to a later boundary expansion (via a subsequent SCR) often save 15 to 25 percent on the initial assessment fee, even after accounting for the eventual SCR cost. The significant change cost arithmetic is the deciding factor.
Separating readiness from formal assessment lets the CSP demonstrate readiness before committing the bulk of the budget. It also gives Coalfire a chance to flag issues that would otherwise become assessment-time findings, which keeps remediation cost manageable. Multi-year ConMon commitments offer Coalfire revenue predictability and often produce a year-one discount of 5 to 10 percent on the initial assessment.
What does not work: trying to compress the assessment timeline below 12 weeks of fieldwork. Coalfire and every other reputable 3PAO will refuse to short-cycle the testing, because doing so puts both the SAR's quality and the firm's accreditation at risk. CSPs that try to negotiate timeline compression typically get a polite refusal and a reminder that the FedRAMP PMO continuous monitoring guide specifies the depth of testing required, regardless of commercial pressure.
Section F
Frequently asked questions
How much does a Coalfire FedRAMP assessment cost?
For FedRAMP Moderate, Coalfire engagements typically run $400,000 to $700,000 for the initial assessment plus readiness, depending on system complexity, control inheritance from the CSP, and the number of unique data flows in the authorization boundary.
Why is Coalfire more expensive than other 3PAOs?
Coalfire is the highest-volume FedRAMP 3PAO and brand-leader. The premium reflects assessor depth on FedRAMP-specific edge cases, agency familiarity with their report style, and the operational maturity of their delivery model. It also reflects pricing power that comes from being the default choice for many CSPs and federal sponsors.
Can you negotiate Coalfire fees?
Some scope adjustment is possible. Fixing the boundary tightly before scoping, separating readiness from formal assessment, and committing to multi-year continuous monitoring engagements often produces meaningful discounts. Pure rate negotiation is rare.
How long does a Coalfire FedRAMP assessment take?
Plan for a 12 to 16 week fieldwork window once readiness is complete, plus 4 to 8 weeks for the Security Assessment Report (SAR). End-to-end engagement, from initial scoping through report delivery, is typically 6 to 9 months.
Does Coalfire offer FedRAMP readiness as well as assessment?
Yes, Coalfire performs Readiness Assessment Reports (RARs) and pre-assessment gap analyses. FedRAMP rules require independence between the 3PAO and the consultant who built your documentation, but readiness performed by the same firm that will later run the formal assessment is permitted under PMO guidance.
Does Coalfire do FedRAMP High assessments?
Yes. Coalfire has a substantial High-impact assessment book, including DoD-adjacent workloads and IRS-1075 systems. Expect High-level engagements to run $750,000 to $1.3M, driven by the 96 additional controls and the deeper boundary testing required.
Section G