Jeffrey L. Robertson

Safety-Kleen, Inc. provides environmental services to commercial, industrial and automotive customers. It offers oil solutions, part cleaning technologies, waste management, vacuum services, compliance services, emergency response, total project management and automotive fluids. The firm also offers safety-Kleen professional products and absorbent and wipers. The company was founded in 1963 and is headquartered in Richardson, TX.

TXU Communications, Inc. provides telecommunication services. It is a rural local-exchange carrier that provides local access and long-distance phone service, internet access, business phone systems and related services in Illinois and Texas. The company also provides dial-up internet access and DSL service. It was founded in 1984 and is headquartered in Mattoon, IL.

American Messaging Services LLC provides paging and messaging services. Its services include traditional numeric and text messaging. It also provides numeric, text and two-way pagers, and paging software products. The company was founded by J. Roy Pottle in November 2005 and is headquartered in Lewisville, TX.

Safety-Kleen Systems, Inc. provides cleaning, environmental and refining solutions. Its services include industrial waste management, emergency response, fluid management, used oil collections, vacuum services and parts cleaning. Its products are used in general automotive, paint and body, fleet, metal fabricators, printing and packaging, chemical, and other manufacturing applications. The company was founded by Ben Palmer in 1963 and is headquartered in Richardson, TX.