Charles R. Gordon

Insituform Technologies LLC provides cured-in place pipe, other technologies, and services for the rehabilitation of water and wastewater pipeline systems. It offers solutions to remediate operational, health, regulatory, and environmental problems resulting from aging and defective pipelines. The company was founded in 1971 and is headquartered in Chesterfield, MO.

Corrpro Companies, Inc. provides cathodic protection systems and engineering services. Its products include anodes, backfill, cable, coatings, adhesives and tapes. The company was founded in 1984 and is headquartered in Houston, TX.

Flexuspine, Inc. manufactures devices for the replacement of the functional spinal unit. It offers functional spinal unit, a total spinal segment replacement to provide an alternative to lumbar fusion by re-establishing mobility to an affected segment of the lumbar spine. The company was founded by Charles R. Gordon, Vincent J. Jannetty, Erik J. Wagner and Corey T. Harbold in 2003 and is headquartered in Tyler, TX.

Nuverra Environmental Solutions, Inc. engages in the development and ongoing production of oil and natural gas from shale formations. It operates through the following segments: Rocky Mountain, Northeast, Southern, and Corporate and Other. The Rocky Mountain segment includes the Bakken shale area. The Northeast segment is comprised of the Marcellus and Utica shale areas. The Southern segment covers the Haynesville shale area. The Corporate and Other segment includes certain corporate costs and certain other corporate assets. The company was founded on May 29, 2007 and is headquartered in Houston, TX.

Natural Systems Utilities LLC engages in provision of water and energy utility services. It specializes in designing sustainable water ecologies for complete water supply, treatment, and reuse. The company was founded by Dominic Kulik in 2007 and is headquartered in Hillsborough, NJ.

Part of Siemens AG, Arrowhead Industrial Water, Inc. is a private company that specializes in on-site industrial water treatment systems. The company is based in Milpitas, CA. Arrowhead Industrial Water was acquired by United States Filter Corp. from Goodrich Corp. on May 04, 1995 for $80 million.

Siemens Water Technologies Corp. provides water and wastewater treatment systems. It offers services to municipal, industrial and institutional clients. The company was founded in 1978 and is located in Warrendale, PA.