Adax Inc
   SS7, ATM, IP, SIGTRAN signaling gateways, protocol controllers and software.
   http://www.adax.com/

Artilium Communications
   Develops, markets, and installs open, scalable telecom solutions for next-generation SS7 INAP networks.
   http://www.artilium.com/

Holmespun Solutions, LLC
   Provides consulting and development services in the areas of protocol and software engineering.
   http://www.holmespun.biz/

IntelliNet Technologies, Inc.
   Provide tools for wireless and intelligent network application development running on an SS7 or IP network.
   http://www.intellinet-tech.com/

SS8 Networks, Inc
   Signaling System 7 (SS7) resource links, history and tutorials.
   http://www.ss7.com

Tekno Telecom
   Supplies turnkey SS7, IP, ATM Network Monitoring and CDR generation systems.
   http://www.teknotelecom.com/

The OpenSS7 Project
   An opensource development project to provide a robust and GPL'ed SS7, SIGTRAN, ISDN and VoIP stack for Linux and other UNIX operating systems.
   http://www.openss7.org/

Ulticom, Inc.
   Provides the telecommunications industry with signaling software that enables development and deployment of Mobility, Location, Payment, Switching and Messaging services within wireless, IP and wireline networks.
   http://www.ulticom.com/