Laurence Hirsch

Centex Corp. engages in the construction and selling of detached and attached single-family homes. The firm provides designing, mortgage, commerce title and insurance services. The company was founded in 1950 and is headquartered in Dallas, Texas.

Southdown, Inc. used to produce and market cement in the United States. The company operated in three business segments: cement, aggregates and concrete. The company operated 12 portland cement manufacturing plants, 11 quarrying sites and a network of 43 cement storage and distribution terminals located in California, Colorado, Florida, Kentucky, Ohio, Pennsylvania, Tennessee and Texas. The cement segment includes production, importation and distribution of portland and masonry cement

Stephens, Inc. is a full-service investment bank and brokerage firm headquartered in Little Rock, Arkansas. The firm was founded in 1933 and is a subsidiary of Susi Holdings, Inc., which is owned by Stephens Financial Services LLC. Stephens provides comprehensive securities sales and trading services, including customized solutions for clients in North America and abroad.

Luminex Corp. develops, manufactures and markets proprietary biological testing technologies and products with applications throughout the life sciences and diagnostics industries. The firm's products are focused on the molecular diagnostic testing market, which includes human genetics, personalized medicine and infectious disease segments. The company was founded by Mark B. Chandler and Van S. Chandler in May 1995 and is headquartered in Austin, TX.

Belo Corp. owns and operates daily newspapers. It owns and manages the various websites associated with these properties and other niche products. The firm also owns and operates commercial printing, distribution, and direct mail service businesses. In addition, it owns and operates television stations and cable news channels. The company was founded in 1842 and is headquartered in Dallas, TX.