Eleven marketplace-verified 3PAOs shortlisted for FedRAMP 20x assessment capability, sorted into verified Tier-1 and candidate Tier-2 groups. Cost band: $80-$280K for Low Impact; $500K-$1.5M for Moderate.
When an AO approves a FedRAMP-authorized product, they're not betting on your marketing claims. They're relying on standardized assessment by accredited professionals.
Approximately 20-25 active FedRAMP-accredited 3PAOs operate on the marketplace as of May 2026. This shortlist was built from public marketplace research and V2 verification (live browser search) against marketplace.fedramp.gov. 11 of 12 original shortlist firms were confirmed active on the official FedRAMP marketplace. One firm (BD Emerson) was not found in the official registry across all 48 accredited assessors and has been dropped.
Cost band for FedRAMP 20x Low Impact end-to-end: $80-$280K (Tier-1 confirmed firms). Cost for Moderate Impact: $500K-$1.5M end-to-end inclusive of 3PAO assessment, OSCAL tooling, and continuous monitoring setup. The sponsor requirement was eliminated January 2026 (RFC-0023); NorthAI can pursue authorization without a pre-identified agency sponsor.
Four firms with publicly documented FedRAMP 20x Low Impact assessment experience, all confirmed active on the official marketplace with Class D (High) highest assessment class.
| 3PAO | HQ | Accreditation Date | Total Assessments | LI-SaaS 20x | DoD-Cleared (IL4/IL5) | Est. Cost (Low Impact) |
|---|---|---|---|---|---|---|
|
Schellman
Pure-play compliance + IT audit. CPA backbone. Market leader.
|
Tampa, FL | July 27, 2012 | 202 | Yes | Yes Published DoD IL4/IL5 authorization guide (2026) |
$80-$200K |
|
A-LIGN
Dual role: 3PAO assessor and cloud SaaS vendor. A-SCEND product is 20x Low authorized.
|
Tampa, FL | October 21, 2013 | 108 | Yes (proven) A-SCEND product achieved FedRAMP 20x Low in Phase 1; dual assessor+vendor experience |
Yes 100% authorization success rate; DoD track |
$100-$250K |
|
Coalfire
Dedicated "FedRAMP Federal" division. DoD IL4/IL5 specialization. Assessed Secureframe to 20x Low.
|
Chicago / Greenwood Village, CO | July 17, 2015 | 123 | Yes (proven) Assessed Secureframe to 20x Low authorization (Phase 1 winner) |
Yes FedRAMP Federal division, IL4/IL5 guides published |
$120-$280K |
|
Fortreum
OSCAL-native. GovRAMP co-operator. Led two confirmed 20x Low assessments (InfusionPoints, Meridian).
|
Ashburn, VA | July 1, 2021 | 77 | Yes (proven) InfusionPoints and Meridian Knowledge Solutions 20x Low assessments (publicly announced) |
Yes Multi-baseline, GovRAMP partner |
$90-$220K |
Seven additional firms confirmed active on the official FedRAMP marketplace. None had publicly documented FedRAMP 20x Low Impact case studies as of 2026-05-28. All are accredited and capable of traditional FedRAMP Rev 5 assessments. Listed with caveats for direct inquiry.
| 3PAO | HQ | Accreditation Date | Total Assessments | Highest Class | Caveat | Est. Cost (Low) |
|---|---|---|---|---|---|---|
| Insight Assurance | Tampa, FL | September 16, 2025 | 0 | Class B (Low) | Newly accredited Sep 2025. Led by Dr. Stephanie Carter (ex-FedRAMP leadership). High pedigree, no public case studies yet. Zero assessments on record. | $100-$240K |
| Lunarline | Ashburn, VA | May 15, 2012 | 53 | Class D (High) | Long-standing accreditation (2012). CMMC and FedRAMP dual-certified. 53 assessments indicates active practice. No published 20x LI-SaaS case study; likely Phase 1 participant but unconfirmed. | $110-$250K |
| Prescient Security | New York, NY / Nashville, TN | January 10, 2024 | 6 | Class C (Moderate) | Newer firm (Jan 2024). Modest assessment volume (6). No published 20x case study. General 3PAO; multi-track practice. | $110-$260K |
| Lazarus Alliance | Scottsdale, AZ | September 14, 2022 | 6 | Class C (Moderate) | CMMC C3PAO co-accreditation signals dual-track practice. FedRAMP is a secondary track. No published 20x case study. | $115-$250K |
| ControlCase | Fairfax, VA | August 27, 2020 | 9 | Class C (Moderate) | StateRAMP accreditation signals GRC automation focus. FedRAMP as parallel track. 9 assessments. No published 20x case study. | $100-$240K |
| MindPoint Group | McLean, VA (Tyto Athene subsidiary) | February 25, 2015 | 3 | Class C (Moderate) | Founding 2015 cohort provides historical credibility. Enterprise consulting focus. Modest active FedRAMP volume (3 assessments). No published 20x case study. | $120-$270K |
| CyberQRT | Location TBD | February 27, 2026 | 0 | Class B (Low) | Very recently accredited (Feb 2026, approximately three months old). Zero public assessments. FedRAMP marketplace listing confirmed (ID 202200). Limited footprint for due diligence. | $110-$250K |
When issuing the RFI to Tier 1 firms, evaluate against these five criteria. Weight them in the order listed for an authorization-first engagement where getting to marketplace quickly matters more than lowest initial cost.
| Criterion | What to Evaluate | Weight |
|---|---|---|
| 20x Phase-Specific Experience | Can the 3PAO name specific products they have assessed to FedRAMP 20x Low or Moderate authorization? Request CSP references and case studies. A-LIGN and Coalfire each have a named product; Fortreum has two named products. Schellman's scale is strong but 20x-specific case studies are not yet publicly documented. | High |
| Timeline Availability | Can the 3PAO begin Phase 3 enrollment support in Q3 2026 and complete a Moderate baseline assessment within the 6-10 month window? Ask for current backlog and earliest start date. Backlog is the hidden variable at firms like Schellman and Coalfire with high demand. | High |
| DoD IL4/IL5 Readiness | If NorthAI's authorization path extends to FedRAMP High or DoD IL4/IL5 (classified data handling), does the 3PAO have experience at that level? Schellman and Coalfire both have published IL4/IL5 guides. Relevant if the defense intelligence suite requires classified system authorization. | Medium |
| OSCAL Tooling and Automation | FedRAMP 20x requires OSCAL-format submissions. Fortreum is explicitly OSCAL-native. Ask other firms what their OSCAL tooling is and whether they have automated evidence collection. Automation reduces the per-customer ConMon burden post-authorization. | Medium |
| Fixed-Fee vs. T&M Pricing | Request a fixed-fee or not-to-exceed engagement structure for the assessment. T&M open-ended arrangements create budget uncertainty on the path to a $500K-$1.5M total authorization spend. A clear fixed-fee proposal signals the 3PAO has done this enough times to scope it accurately. | Medium |