Richard Oden Sheppard

Rentech, Inc. supplies wood chips, wood pellets and nitrogen fertilizers. It owns patented technologies for synthetic fuels and power production. The firm owns the intellectual property including, patents pilot and demonstration data, and engineering designs for a number of clean energy technologies designed to produce certified synthetic fuels and renewable power when integrated with third-party technologies. It also owns a biomass and natural gas-to-synthetic fuels demonstration facility located in Commerce City, Colorado. The company was founded by Dennis L. Yakobson on December 18, 1981 and is headquartered in Los Angeles, CA.

Rentech Development Corp. provided energy solutions. The company was headquartered in Denver, CO.

Flatiron Constructors, Inc. provides construction services, which includes complex bridge, highways, and transportation projects. The firm offers designing, building, construction management, and specialized construction services for transportation projects. Its operations include piling, complex lifting and erecting, deep and large-diameter foundations, tunneling and marine construction. The company is headquartered in Colorado, CO.

Wellhead Electric Co., Inc. develops, owns, and operates gas-fired power generation projects. The private company is based in Sacramento, CA and has subsidiaries in the United States.