NextPlane - NextPlane offers cloud-based, scalable unified communications federation service for the enterprise.
Voxer - Turn your phone into a Walkie Talkie. Don't waste time on phone calls and voicemails.
Calix - Calix is a communications equipment supplier focused on access solutions for delivery of broadband services.
Sameroom - Chat interoperability-as-a-service
Smart Communications - Smart Communications enables companies to create, manage and deliver personalized communications to its customers and partners.
PanTerra - PanTerra provides cloud-based unified communication solutions for small and medium-sized enterprises.