Charles J. Roesslein

SBC Communications, Inc. provides telecommunications services primarily in the United States. It offers various services and products, such as local exchange services, wireless communications, long-distance services, Internet services, telecommunications equipment, and directory advertising and publishing services. The company provides landline telecommunications services, such as local, long-distance voice, switched access, data and messaging services, and satellite television services; mobile wireless voice and data communications services; and directory services, such as advertising, Yellow and White Pages directories, and electronic directory publishing

Part of AT&T, Inc., Southwestern Bell Telephone Co. provides telecommunication services. The company is based in San Antonio, TX.

National Instruments Corp. engages in the design, manufacture, and sale of systems to engineers and scientists that accelerate productivity, innovation, and discovery. The firm's products include Labview, TestStand, FlexLogger, Voltage, Temperature, Software Defined Radios, Power Accessories, and Repair Services. It provides application software and modular, multifunction hardware that users combine with industry-standard computers, networks and third-party devices to create measurement, automation and embedded systems. The company was founded by Jeffrey L. Kodosky and James J. Truchard in May 1976 and is headquartered in Austin, TX.

Part of AT&T, Inc., Prodigy Communications Corp. makes math learning fun and effective with their Prodigy Math Game. The company is based in Austin, TX. Prodigy Math Game offers free in-game educational content to its users. The company was founded in 1984. Prodigy Communications was acquired by SBC Communications, Inc. on November 02, 2001 for $269.80 million.

Healthvision Solutions, Inc. develops software products. The company's software and service offerings include an integrated suite of application development tools and vertical enterprise applications for companies in healthcare, financial services, software, telecommunications, public sector, manufacturing and life sciences. The company was founded in 1989 and is headquartered in Irving, TX.