Kyle Gionis

Apex Compressed Air Energy Storage LLC develops, constructs, owns and, operates compressed air energy storage plants. Its power generation facility uses electric motor-driven compressors to inject air into an underground storage cavern and later releases the compressed air to turn turbines and generate electricity back onto the grid. The company was founded in 2011 and is headquartered in Houston, TX.

Haddington Ventures LLC (Haddington Ventures) is a private equity firm founded in 1998 by James Chris Jones and John A. Strom. The firm is headquartered in Houston, Texas.

Keystone Energy Partners LP generates, transmits, and distributes electricity. The private company is based in Houston, TX, and has subsidiaries in the United States. The company was founded by Keith Volf.

Reliant Energy, Inc. generates and markets electricity. It has more than 14,000 megawatts of power generation capacity at 36 coal, oil and gas-fired plants across the United States. Reliant Energy is headquartered in Houston, TX.

Arthur Andersen LLP used to provide accounting services. It was also into consulting services for clients that operate businesses throughout the United States and around the world. Arthur Andersen was founded in 1913 and was headquartered in Chicago, IL.