Robert Green

Riverstone Holdings LLC operates as an energy focused investment manager. It conducts buyout and growth capital investments in the exploration and production, midstream, oilfield services, power, and renewable sectors of the energy industry. The company was founded by David Matthew Leuschen and Pierre Fernard Lapeyre, Jr. in 2000 and is headquartered in New York, NY.

Ensus Ltd. produces bioethanol fuel and animal feed products. The company was founded by Margetts John Robert in 2007 and is headquartered in Yarm, the United Kingdom.

Micronic Technologies, Inc. is engaged in concentration of industrial wastewater. Its products include Tornadic One-Pass. The company was founded by Karen Sorber and Kelly P. Rock and is headquartered in Bristol, VA.

Frontier Drilling USA, Inc. provides drilling and production services for the oil industry. It focuses on the operation and management of conventional drill ships, semi-submersibles, floating production, storage, and offloading vessels. The company is headquartered in Houston, TX.

AG Global Canada LP produces and supplies agriculture and industrial products. It serves lawn and garden, and agricultural needs. The company was founded in June 2007 and is headquartered in Toronto, Canada.

Seajacks International Ltd. operates self-propelled jack-up vessels which provide offshore solutions. The firm operates in both renewable and hydrocarbon industries. The company was founded in 2006 and is headquartered in Yarmouth, the United Kingdom.

Patagonia Bioenergía SA produces and commercializes bio-diesel. It develops alternative oilseeds that are capable of producing oil for use in biodiesel production. The company was founded by Douglas Albrecht and Dario Obrador Gabriel in 2006 and is headquartered in Ciudad Autonoma de Buenos Aires, Argentina.

Frontier Drilling LLC provides rig drilling services. The company is based in Oklahoma City, OK and was founded in 2005.

ReEnergy Holdings LLC provides waste/biomass renewable energy services. Its services include health and safety, compliance, financial oversight, Management, counterparty relations, operational optimization and stakeholder engagement. The company was founded by Thomas E. Beck, William Ralston , Gregory Leahey and Larry Richardson in August 2008 and is headquartered in Latham, NY.

RODI Systems Corp. specializes in industrial water treatment, wastewater treatment, and desalination systems. The private company is based in Aztec, NM. The company's products are designed and manufactured in-house and can be shipped globally.

Sustainable Oils was formed in November 2007 and has emerged as the global leader in camelina research, production and market development. They have developed elite varieties of the unique oilseed crop, camelina, which is used to produce a high-quality, efficient biofuel. With the ability to produce a crop with less water, camelina offers growers the exciting option of producing a profitable crop with fewer inputs. Camelina traditionally has not been grown for human consumption, so it doesn’t compete with food industry demands. Sustainable Oils has been a leader in the development of an exciting new market for camelina based biofuels aviation. As the most tested and scalable option for drop-in replacement of petroleum based jet fuel, camelina has the potential to become one of the most popular green fuels on the market by meeting their increasing need for alternative energy with value-added agriculture.

Aganova Grupo specializes in detecting leaks in water transport networks. The company is based in Malaga, Spain. The Spanish company uses technology and innovation to provide water services.

Cimbria Capital LLC (Cimbria Capital) is a private equity firm founded in 2015 by Brian V. Iversen. The firm is headquartered in Houston, Texas with additional office in Denmark.

AMI Global provides Industrial Internet of Things (IIoT) and Internet of Agriculture (IoA) solutions, systems, and strategies. It engineers IIoT and IoA products for remote monitoring, diagnostics, reporting, and control for industrial machinery. The company was founded by David Drake in 2009 and is headquartered in Las Vegas, NV.

Blue Bear Capital LLC (Blue Bear Capital) is a venture capital firm founded in 2016 by Timothy L. Kopra. The firm is headquartered in Los Angeles, California.

Apx10 A/S develops and sells software solutions to water and wastewater industries. It specializes in assets performance management, utility analysis, and data and Internet of Thing enabling devices. The firm's platform provides data analytics for decision making. The company is headquartered in Viby J, Denmark.

Florida Drilling, Inc. operates as a water well and general contractor. It services public water supply wells, design build, general contractor services, and well testing specialties. The company was founded by Dan Ringdahl in 2005 and is headquartered in West Palm Beach, FL.

Slater Infrastructure Group LLC provides infrastructure consulting, engineering, program management, and construction services. The company is based in Alpharetta, GA. The company was founded in 1997 by Jeanne Simkins Hollis, who has been the CEO since 1997.