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

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

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

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

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/

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