Robert Payne Lancaster

Robertson Opportunity Capital LLC (ROC) is an independent SEC-registered investment advisor and alternative investment manager headquartered in Dallas, Texas. The firm was founded in 1995 as the successor to Richmont Investment Management, which was established by J. Brett Robertson in 1992. ROC provides investment advice to two private pooled investment vehicles, in a mini-master structure, and a single separately managed account.

EFO Private Equity LLC (EFO Private Equity) is a private equity firm subsidiary of EFO Holdings LP founded in 1994 by William Esping. The firm is headquartered in Dallas, Texas.

WCA Waste Corp. engages in the provision of waste collection, recycling, and disposal services. The firm offers residential recycling, commercial dumpsters, special waste, portable toilets, and roll-off collection. The company was founded by Tom J. Fatjo, Jr. in 2000 and is headquartered in Houston, TX.