Ronald Steinhart

NCH Corp. engages cleaning water, conserving energy, and delivering maintenance solutions. It offers biologicals, plumbing, lubrication, industrial institutional maintenance, specialty industrial supplies, and parts washing products. The company was founded by Milton P. Levy Sr. in 1919 and is headquartered in Irving, TX.

Texas Industries, Inc. supplies heavy construction materials. The company is headquartered in Dallas, TX.

Prentiss Properties trust/MD operates as real estate investment trust (REIT). It owns interests in 135 operating properties with approximately 18.8 million square feet-16.6 million of office properties and 2.2 million of industrial properties. Prentiss Properties, through various management subsidiaries, manages approximately 28 million square feet of office and industrial properties owned by Prentiss Properties, its affiliates and third parties. Prentiss Properties is headuartered in Dallas, TX.

Carreker Corp. develops payments related software and consulting solutions to financial institutions and financial service providers. Its services include consulting, project management and software implementation. The company offers tools for fraud detection, payment systems, cash inventory management and cost reduction. The firm is located in Dallas, TX.

The Teacher Retirement System of Texas (TRS) is a state-owned pension fund manager headquartered in Austin, Texas. The firm was founded by the Texas Legislature in 1937 to provide service and disability retirement benefits to teachers and administrators of the public school systems of Texas, which include institutions of higher education. In 1949, legislation expanded membership eligibility to include all employees of public education institutions. In 1985, TRS was assigned responsibility to administer health insurance program for public school retirees. The firm invests funds under its stewardship and delivers benefits to members as authorized by the Texas Legislature.

Penson Worldwide, Inc. is a provider of a broad range of critical securities and futures processing infrastructure products and services to the global financial services industry. Its products and services include securities and futures clearing and execution, financing and cash management technology and other related offerings, and provide tools and services to support trading in multiple markets, asset classes and currencies. Penson Worldwide was founded by Phil A. Pendergraft and Daniel P. Son in 1995 and is headquartered in Dallas, TX.

Susser Holdings Corp. operates as an investment holding company with interest in convenience stores and motor fuel. The firm operates in two segments such as, retail and wholesale. The company was founded on June 9, 2006 and is headquartered in Corpus Christi, TX.