Z1 SecureMail Gateway
- Email gateway software from Zertificon Solutions GmbH which uses Open PGP and S/MIME to automatically encrypt, decrypt, sign e-mail and verify signatures.
- http://www.zertificon.de/z1_secure_mail_gateway.php

myPGP - Experimental PGP clone
- myPGP is a free software (GPLed) clone of PGP, and can be used to encrypt, decrypt and sign messages in a public key system.
- http://mypgp.sourceforge.net

Coviant Software for B2B OpenPGP Software
- Diplomat Transaction Manager from Coviant Software is built using OpenPGP encryption to enable easy set-up and administration of secure, business-to-business file transfers, including scheduling of file transfer jobs, email/paging problem notifications, a
- http://www.coviantsoftware.com

Veridis
- Veridis is a Software Manufacturer providing commercial OpenPGP Solutions.
- http://www.veridis.com/openpgp/en/

PGP Components for Delphi
- Free components providing encoding, decoding and several key management functions for Delphi versions.
- http://idw-doc.homepage.t-online.de/PGPcomp.htm

PGP Keyanalysis
- This gives you a analysis of the rank and msd of a key within the strongly connected set of pgp keys.
- http://thomas.butter.dk/gpg

Prime Factors, Inc.
- Source of OpenPGP (RFC 2440) software for multiple platforms - Windows, Unix, OS/400 and zOS.
- http://www.primefactors.com

PentaSuite
- 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.
- http://www.pentazip.com/

Open PGP Command Line EDGE
- 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.
- http://www.authora.com/EDGE

Zendit and Sovereign by Authora Inc.
- Developes and supports ZENDIT simple to use public key technology for encryption, digital signatures, and digital identity software that is compliant with the OpenPGP standard. Authora is a founding member of the Open PGP Alliance.
- http://www.authora.com

Authora is a founding member of the Open PGP Alliance
- 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.
- http://www.authora.com/PGPUser.asp

Patrick Townsend & Associates
- AS/400 FTP & PGP automation, EDI & XML, eCommerce, Hospitality/Banks/Medical.
- http://www.patownsend.com/PGPencryption.htm

CryptoEx PGP and S/MIME Software
- 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.
- http://www.glueckkanja.com/

EasyByte Cryptocx
- 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.
- http://www.easybyte.com/products/cryptocx.html

Macintosh PGP
- Reviews of Macintosh specific PGP applications.
- http://www.securemac.com/pgpfreeware.php

WebStore - PGP Encryption
- Configuration details for PGP encrypted administrative e-mail in WebStore.
- http://www.cgicentral.net/400CS/Docs/pgp.html

Private Idaho Email
- Secure email using PGP 5 or 6, and also one-way anonymous (recipient cannot reply) and two-way anonymous (recipient can reply, but not trace who you are) remailing.
- http://www.itech.net.au/pi/

MIT Distribution Center for PGP
- 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.
- http://web.mit.edu/network/pgp.html

GNU Privacy Guard (GnuPG)
- The GNU Privacy Guard (GnuPG) is a free replacement for PGP.
- http://www.gnupg.org