Messaging Anti-Abuse Working Group (MAAWG)
Association seeks to bring the messaging industry together to fight messaging abuse such as messaging spam, virus attacks, and denial-of-service attacks.
http://www.maawg.org/

QLA Messaging Server
QLA Messaging Server is a carrier grade messaging middleware platform. It provides an easy way to convert new or existing services and content to mobile world.
http://www.kuulalaakeri.com

Wireless2Web LLC
Wireless2Web develops proprietary technology into consumer-driven Internet and wireless applications, deploys the applications, and creates new markets for the entertainment and messaging industries.
http://wireless2web.com

Secure Messaging Server
A secure messaging server that provides total control and security for your email system plus some additional messaging products.
http://www.secure-message.com/

Web Services Messaging with Apache Axis2: Concepts and Techniques [ONJava.com]
Srinath Perera and Ajith Ranabahu show how Apache Axis2's support for messaging can build complex messaging strategies from just two basic patterns: in-only and in-out.
http://www.onjava.com/pub/a/onjava/2005/07/27/axis2.html

VoxSurf
Provides messaging applications - email, voicemail and unified communication API, and mobile messaging VoiceSMS).
http://www.voxsurf.com

Xe2
XE2 removes the complexity of operating Exchange e-mail, Archiving, CRM and SharePoint. We manage and host everything so you can keep working at 100%. We provide hosted and managed solutions in partnership with NTT Europe Online. We are a Microsoft Gold Certified Partner. Our other partners are BlackBerry, Quest Software and PC-Ware.
http://www.xe2.co.uk

OHP
Provider of customized on hold messaging and digital messaging equipment.
http://www.onholdpro.com/

Secure Messaging
Provides control and security for your email system and additional messaging products. Includes product and contact information.
http://www.secure-message.com/

Transclick
Real-time language translation of instant messaging, e-mail, SMS and text messaging over computers, smartphones and mobile PDAs.
http://www.transclick.com