| Vendor | Product | URL |
| Audionet (Yahoo) | Multicasting server | www.audionet.com |
| Cisco | Multicasting server | www.cisco.com |
| MCI/Worldnet (UUNet) | Multicasting server | www.mci.com |
| Precept Software (Cisco) | Multicasting server | www.precept.com |
| Sprint | Multicasting server | www.sprint.com |
