Authora is dedicated to promoting the use of PGP worldwide. The Authora SoveriegnSuite includes ZENDIT, for digital signing, encrypting and access control. ZENDIT can also integrate X.509 Certificates.

Products and Technologies for OpenPGP and S/MIME integration for corporate use. Advanced client products for Microsoft Outlook, Lotus Notes, Hard Disk Encryption and others. PKI Technology for CA/RA integration of PGP and X.509.

Cryptocx is an encryption control that has full PGP support. You can use PGP keys to encrypt/decrypt strings and files from within your applications or ASP sites.

The GNU Privacy Guard (GnuPG) is a free replacement for PGP.

Veridis is a Software Manufacturer providing commercial OpenPGP Solutions.

Reviews of Macintosh specific PGP applications.

PGP® or Pretty Good Privacy® is a powerful cryptographic product family that enables people to securely exchange messages, and to secure files, disk volumes and network connections with both privacy and strong authentication.

myPGP is a free software (GPLed) clone of PGP, and can be used to encrypt, decrypt and sign messages in a public key system.

Encrypted Data Gateway Engine (EDGe) is an Open PGP compliant Command Line that runs on most Unix platforms and Windows. Embed automatic encryption, decryption, digital signing and verification into countless business applications and processes.

PentaSuite: File management/deployment with Thumbnail-based Viewer (JPG, BMP). Email/Antivirus support. 15 Compression Formats: ZIP, ZGB, ZIP64, LHa, etc. CD Burning CD-RW/CD-R. Multi-volume. FTP. Strong Encryption PGP, and AES.