DirectTrust Membership List
Members
Accredited HISPs
The following organizations have met the criteria and achieved full DirectTrust HISP Accreditation through their listed Accreditation “Valid Until” date.

Advanced Health Systems
Valid Until 11/20/2022

athenaHealth
Valid Until 10/24/2022
Accredited Certificate Authorities
The following organizations have met the criteria and achieved Certificate Authority accreditation, or authority to issue and manage security credentials and public keys for message encryption.
Accredited Registration Authorities
The following organizations have met the criteria and achieved Registration Authority accreditation, or authority in a network that verifies user requests for a digital certificate and gives permission to the Certificate Authority to issue it.