theagentindex.io/guides/fedramp-3pao-assessors/ · Last reviewed 25 Oct 2026
Free guide · FedRAMP · 3PAO · 25 Oct 2026
FedRAMP 3PAOs: how to check an assessor and shortlist one
FedRAMP recognizes Third-Party Assessment Organizations (3PAOs) after A2LA accreditation. This page quotes those recognition rules, how to check a name, and how the 44 FedRAMP firms in this directory break down by US state and city. Not a ranking.
How FedRAMP recognizes assessors
“Assessors MUST obtain and maintain accreditation through the American Association for Laboratory Accreditation (A2LA) Cybersecurity Inspection Body Program to qualify for FedRAMP Recognition.” [1]
“FedRAMP will remove FedRAMP Recognition immediately after the American Association for Laboratory Accreditation notifies FedRAMP that an assessor's accreditation has lapsed.” [1]
“A2LA offers accreditation of Third-Party Assessment Organizations (3PAOs) as part of the Federal Risk and Authorization Management Program (FedRAMP).” [2]
Open the official pages: FedRAMP Consolidated Rules for 2026 · A2LA FedRAMP accreditation · FedRAMP Marketplace assessors.
How to verify a 3PAO
- Search the FedRAMP Marketplace assessor listing for the exact legal entity.
- Confirm the same legal entity on the A2LA FedRAMP directory.
- Check that accreditation has not lapsed. FedRAMP removes recognition immediately after A2LA notifies it of a lapse. [1]
Related: FedRAMP hub · FedRAMP compliance automation tools · GovRAMP 3PAO list · compliance cost and timeline.
What this directory lists
Agent Index lists 44 organisations whose frameworks field contains “FedRAMP”. Counts below are computed at build from that field. [4]
FedRAMP 3PAOs in the United States (43 firms with a US office).
Related: auditors directory · CMMC C3PAO list · PCI DSS QSA companies · Get matched.
States and cities
Office counts below are computed at build from FedRAMP-tagged listings. A state or city page exists only where at least three Verified firms match both the framework and an office there. Not a ranking.
US states
- Virginia — 21 firms (US office)
- California — 6 firms (US office)
- Maryland — 6 firms (US office)
- Texas — 6 firms (US office)
- Florida — 5 firms (US office)
- Georgia — 5 firms (US office)
- Illinois — 5 firms (US office)
- Arizona — 4 firms (US office)
- Washington — 4 firms (US office)
- Colorado — 3 firms (US office)
- Ohio — 3 firms (US office)
- District of Columbia — 2 firms (US office)
- Massachusetts — 2 firms (US office)
- North Carolina — 2 firms (US office)
- New York — 2 firms (US office)
- Pennsylvania — 2 firms (US office)
- Alabama — 1 firm (US office)
- Michigan — 1 firm (US office)
- Minnesota — 1 firm (US office)
- South Carolina — 1 firm (US office)
- Tennessee — 1 firm (US office)
US cities (from stored offices)
- Chicago, Illinois — 5 firms
- McLean, Virginia — 4 firms
- Scottsdale, Arizona — 4 firms
- Atlanta, Georgia — 3 firms
- Denver, Colorado — 3 firms
- Fairfax, Virginia — 3 firms
- Reston, Virginia — 3 firms
- Tampa, Florida — 3 firms
- Alpharetta, Georgia — 2 firms
- Arlington, Virginia — 2 firms
- Bellevue, Washington — 2 firms
- Boston, Massachusetts — 2 firms
- Chantilly, Virginia — 2 firms
- Columbia, Maryland — 2 firms
- Dallas, Texas — 2 firms
- Houston, Texas — 2 firms
- Los Angeles, California — 2 firms
- New York, New York — 2 firms
- Philadelphia, Pennsylvania — 2 firms
- San Francisco, California — 2 firms
Firms in this directory
- 360 Advanced — St. Petersburg, FL
- A-LIGN — Tampa, FL
- AARC-360 — Alpharetta, GA
- Accenture Federal Services — Chantilly, VA
- Anthony Timbers — Fredericksburg, VA
- Aprio — Atlanta, GA
- Baker Tilly US — Chicago, IL
- COACT — Columbia, MD
- Coalfire — Chicago, IL
- ControlCase — Fairfax, VA
- CyberQRT — Severna Park, MD
- Databrackets — Cary, NC
- DataLock Consulting Group — Fairfax, VA
- Deloitte & Touche LLP (Deloitte US) — New York, NY
- Earthling Security — Potomac Falls, VA
- Emagine IT — North Bethesda, MD
- Excentium — Reston, VA
- First Information Technology Services (FITS) — Arlington, VA
- Fortreum — Lansdowne, VA
- GMS Registrar — Highland Heights, OH
- Ignyte Assurance — Centerville, OH
- Information Technology Company — Falls Church, VA
- Insight Assurance — Tampa, FL
- Kompleye — Reston, VA
- KPMG LLP (KPMG US) — New York, NY
- Kratos — Herndon, VA
- Lazarus Alliance — Scottsdale, AZ
- Linford & Company — Denver, CO
- Lunarline — Ashburn, VA
- MegaplanIT — Scottsdale, AZ
- MindPoint Group — McLean, VA
- NCC Group — Manchester, England
- Prescient Security — Nashville, TN
- RISC Point — Cleveland, OH
- RSM US LLP — Chicago, IL
- Schellman — Tampa, FL
- SecureIT — Reston, VA
- Securisea — Annapolis, MD
- Sentar — Huntsville, AL
- Sera Brynn — Plano, TX
- SteelToad — Baltimore, MD
- TalaTek — Scottsdale, AZ
- Tevora — Irvine, CA
- Vaultes — McLean, VA
Get matched
If you want a shortlist of listed firms for FedRAMP or another published framework, use Get matched or the form below. We store the request for review; we do not email firms automatically.
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FAQ
What is a FedRAMP 3PAO?
A Third-Party Assessment Organization (3PAO) is an independent assessor that FedRAMP recognizes after the organization obtains and maintains accreditation through the American Association for Laboratory Accreditation (A2LA) Cybersecurity Inspection Body Program.
How do I verify a 3PAO?
Check the FedRAMP Marketplace assessor listing and the A2LA FedRAMP directory. Confirm the exact legal entity on both lists before engaging a firm. FedRAMP removes recognition immediately after A2LA notifies FedRAMP that an assessor’s accreditation has lapsed.
How many FedRAMP assessors are listed on Agent Index?
35 Verified · 9 registry-listed FedRAMP assessors are in this directory, by US state (office counts): Virginia 21, California 6, Maryland 6, Texas 6, Florida 5, Georgia 5, Illinois 5, Arizona 4, Washington 4, Colorado 3, Ohio 3, District of Columbia 2, Massachusetts 2, North Carolina 2, New York 2, Pennsylvania 2, Alabama 1, Michigan 1, Minnesota 1, South Carolina 1, Tennessee 1.
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Sources
- FedRAMP Consolidated Rules for 2026, FedRAMP Recognition, launched 2026-06-24, checked 25 Oct 2026. https://www.fedramp.gov/2026/assessors/rules/fedramp-recognition/
- A2LA, FedRAMP accreditation program, checked 25 Oct 2026. https://a2la.org/accreditation/fedramp/
- FedRAMP Marketplace assessors. https://www.fedramp.gov/marketplace/assessors/
- Agent Index auditors dataset v0.1.32, generated 2026-10-27. https://theagentindex.io/auditors.json
Prepared by Agent Index (Heritage Services). Last reviewed 25 Oct 2026. General information, not legal advice. Confirm scope with your counsel or auditor. Licensed CC BY 4.0.