Graham A. Taylor

tw telecom, Inc. is a provider of managed network services, specializing in business Ethernet, data networking, converged, IP VPN, Internet access, voice, including VoIP, and network security services to enterprise organizations, including public sector entities, and carriers throughout the U.S., including their global locations. It also provides a broad range of traditional services, including a dedicated network service portfolio with private line, special access and private transport services, voice services and secure Internet access. tw telecom was founded in 1993 and is headquartered in Littleton, CO.

Part of AT&T, Inc., Teleport Communications Group, Inc. provides integrated telecommunications services. The company is based in Dayton, NJ. The company was founded by Guy Lanni. Teleport Communications Group was acquired by AT&T Corp. /Old/ on July 24, 1998 for $11,294.27 million.

Part of Innospec, Inc., VMX, Inc. is a company that specializes in telephones and telephone apparatus. The company is based in San Jose, CA. The company was founded by David J. Ladd.