Ian Wang

Society of Petroleum Engineers, Inc. provides petroleum engineering services. The non-profit company is based in Allen, TX and has subsidiaries in United States, India and Canada.

Insitu, Inc. designs, develops, and produces unmanned aircraft systems. It offers miniature aircraft for offshore weather reconnaissance and unmanned aerial vehicles and tools for commercial and defense reconnaissance purposes. The firm's technologies can be applied to intelligence, surveillance and reconnaissance efforts in the defense sector, as well as the civil and commercial industries, such as environmental monitoring, precision agriculture, search-and-rescue, disaster relief, and mining operations. The company was founded in 1994 and is headquartered in Bingen, WA.

Greka Drilling Ltd. is an investment holding company, which through its subsidiaries, engages in the provision of drilling services. It operates through the Provision of Contract Drilling Services in the PRC, and India. The company was founded by Randeep S. Grewal in November 2007 and is headquartered in Zhengzhou, China.

Clarke Energy Ltd. provides power generation services. It offers repairs and overhaul, commissioning, spare parts, maintenance agreements, field service, remote monitoring and diagnostics, and training. The company was founded by James Clarke in 1989 and is headquartered in Liverpool, the United Kingdom.