360 Advanced
HQ: United StatesVerified
St. Petersburg, Florida firm performing SOC examinations, ISO certification, HITRUST, PCI DSS and FedRAMP assessments.
25 Verified · 4 registry-listed · GovRAMP · office in United States · Verified first · All GovRAMP firms · All firms in the United States
These firms have a current official-registry listing for GovRAMP (GovRAMP accredited 3PAO list) and a published office in United States. Listings are checked facts, not endorsements or rankings.
HQ: United StatesVerified
St. Petersburg, Florida firm performing SOC examinations, ISO certification, HITRUST, PCI DSS and FedRAMP assessments.
HQ: United StatesVerified
Tampa-headquartered cybersecurity compliance firm covering ISO certification, HITRUST, FedRAMP, PCI DSS and CMMC assessments.
HQ: United StatesVerified
Alpharetta, Georgia assurance and compliance firm offering SOC 1 and SOC 2 reports, PCI DSS, HITRUST and FedRAMP assessments.
HQ: United StatesVerified
Atlanta-based CPA and advisory firm listed across SOC, ISO, FedRAMP, HITRUST, PCI DSS and CMMC assessor registries.
HQ: United StatesVerified
US advisory and accounting firm; listed as a PCI Qualified Security Assessor company, HITRUST External Assessor and FedRAMP-recognized assessor, with an ANAB-accredited ISO certification body (Baker Tilly Certifications LLC).
HQ: United StatesVerified
Columbia, Maryland cybersecurity firm listed as a FedRAMP 3PAO, offering FISMA, FedRAMP and NIST SP 800-171 compliance services.
HQ: United StatesVerified
Cybersecurity advisory and assessment firm listed as a FedRAMP 3PAO, PCI QSA, HITRUST assessor, ISO certification body and (via Coalfire Federal) CMMC C3PAO.
Chicago, Illinois · Alpharetta, Georgia · Bellevue, Washington · +2 more
HQ: United StatesVerified
Compliance assessment firm based in Fairfax, Virginia with an Indian entity in Mumbai; listed as PCI QSA, FedRAMP 3PAO, HITRUST assessor, C3PAO and CERT-In empanelled auditor. The Indian entity is NABCB-accredited for ISO/IEC 27001.
HQ: United StatesVerified
North Bethesda, Maryland technology and cybersecurity firm listed as a FedRAMP 3PAO and CMMC C3PAO.
HQ: United StatesVerified
Virginia-based assessment firm listed as a FedRAMP 3PAO, PCI QSA and CMMC C3PAO, with an ANAB-accredited ISO certification arm.
HQ: United StatesVerified
Tampa-based audit firm listed as a PCI QSA, HITRUST External Assessor, FedRAMP 3PAO and CMMC C3PAO.
HQ: United StatesVerified
Reston, Virginia attestation firm listed for SOC, ISO certification, FedRAMP, HITRUST and CMMC assessments.
HQ: United StatesVerified
Defense and technology company listed (as Kratos / Kratos Technology & Training Solutions) as a FedRAMP 3PAO, HITRUST External Assessor and CMMC C3PAO.
HQ: United StatesVerified
Scottsdale, Arizona cybersecurity audit firm listed as a FedRAMP 3PAO, PCI QSA and CMMC C3PAO.
HQ: United StatesVerified
Denver-based CPA firm performing SOC examinations, ISO certification, FedRAMP, HITRUST, PCI DSS and CMMC assessments.
HQ: United StatesVerified
Ashburn, Virginia cybersecurity firm listed as a FedRAMP 3PAO and CMMC C3PAO.
HQ: United StatesVerified
Scottsdale, Arizona security and compliance firm listed as a PCI QSA, HITRUST External Assessor and FedRAMP 3PAO.
HQ: United StatesVerified
Nashville-based security assessment firm listed as a FedRAMP 3PAO, HITRUST External Assessor, PCI QSA and CMMC C3PAO.
HQ: United StatesVerified
Chicago-headquartered US member of the RSM network; listed as a PCI Qualified Security Assessor company, HITRUST External Assessor and FedRAMP-recognized third-party assessor.
HQ: United StatesVerified
Tampa-based attestation and certification firm offering ISO certification, FedRAMP, PCI DSS, HITRUST and CMMC assessments.
HQ: United StatesVerified
Reston, Virginia-based cybersecurity advisory and assessment firm; listed on the FedRAMP Marketplace as a recognized independent assessor (3PAO) since October 2013.
HQ: United StatesVerified
Security assessment firm with an Annapolis, Maryland address listed as a FedRAMP 3PAO, PCI QSA and HITRUST External Assessor, with an ANAB-accredited affiliate for ISO 27001 and ISO 42001.
HQ: United StatesVerified
Huntsville, Alabama cybersecurity firm listed as a FedRAMP 3PAO and CMMC C3PAO.
Huntsville, Alabama · North Charleston, South Carolina · Columbia, Maryland · +2 more
HQ: United StatesVerified
Cybersecurity assessment firm with offices listed in Plano, Norfolk and Washington, DC; listed as a FedRAMP 3PAO and CMMC C3PAO.
Plano, Texas · Norfolk, Virginia · Washington, District of Columbia
HQ: United StatesVerified
Northern Virginia cybersecurity assessment firm listed as a FedRAMP 3PAO and CMMC C3PAO.
HQ: United StatesRegistry-listed
DataLock Consulting Group appears on the FedRAMP Marketplace — recognized assessors (3PAO) as of 2026-10-27. This firm appears on the official registry, not independently verified by Agent Index.
HQ: United StatesRegistry-listed
Earthling Security appears on the FedRAMP Marketplace — recognized assessors (3PAO) as of 2026-10-27. This firm appears on the official registry, not independently verified by Agent Index.
HQ: United StatesRegistry-listed
Information Technology Company appears on the FedRAMP Marketplace — recognized assessors (3PAO) as of 2026-10-27. This firm appears on the official registry, not independently verified by Agent Index.
HQ: United StatesRegistry-listed
RISC Point appears on the FedRAMP Marketplace — recognized assessors (3PAO) as of 2026-10-27. This firm appears on the official registry, not independently verified by Agent Index.
Other frameworks in the United States: PCI DSS (83) · CMMC (75) · HITRUST (63) · FedRAMP (43) · ISO 27001 (39) · SOC 2 (25) · SOC 1 (21) · ISO 27701 (20) · ISO 42001 (15) · HIPAA (12) · CERT-In (6)
Other GovRAMP locations: Virginia · Florida · Maryland · Chicago · Georgia · Illinois · Tampa
25 Verified · 4 registry-listed firms are listed for GovRAMP with an office in United States. This is not a ranking.
We check GovRAMP accredited 3PAO list. A framework tag appears only when that registry listed the firm at last check.
Chicago (3), Tampa (3), Alpharetta (2), Columbia (2), Fairfax (2), Reston (2).
Use Get matched or the auditor-match form on this page. A listing is a set of checked facts, not an endorsement. Get matched.
See the listing method. Pages exist only where at least 3 Verified firms match both the framework and the location.
Related guides: GovRAMP 3PAOs
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