• AB&T Conferencing
• ACC Business
• Access One

• Access Point
• AireSpring
• Allied Telecom

• Alpheus Communications
• American Telesis
• AT&T

• BandTel
• Bandwave Systems
• BCE Nexxia (Bell Canada)

• Birch Communications
• Broad Sky
• Broadview Networks

• BullsEye Telecom
• Cbeyond
• CenturyLink

• Charter Business
• China Telecom
• Cogent

• Colt
• Comcast Business
• FiberLight

• Frontier Communications Solutions
• Galileo UC
• Global Capacity

• GTT
• Hypercore
• IntelePeer

• InterCall
• InterNap
• Level 3

• Lightower Fiber Networks
• LightPath Technologies
• Masergy

• MetTel
• Navisite
• Netwolves

• Nitel
• NTT Communications
• Optimum Business (Cablevision)

• PowerNet Global
• Reliance Globalcom
• Spectrum Business

• Sprint
• TATA Communications
• TelePacific Communications

• Time Warner Cable
• TW Telecom
• USNi

• Vonage Business Solutions
• Windstream
• XO Communications

• Zayo Networks