John A. Billings

Hydrogen Energy Corp. sells hydrogen-fueled energy systems. It focuses on fuel cells and metal hydride systems that use alloys of iron, titanium and manganese in powder form in a storage vessel. The company was founded by Roger Evan Billings in 1973 and is headquartered in Independence, MO.

International Academy of Science offers degree programs in education, science and technology-related fields. The company was founded by Roger Evan Billings and Geoffrey Pardoe in 1984 and is headquartered in Kansas City, MO.

Acellus Corp. is an education technology company that offers video-based lessons with advanced technology to accelerate learning, improve test scores, and reduce dropout rates. The private company is based in Kansas City, MO. The company provides over 300 courses in all core subjects, including advanced placement, career & technical education, and STEM, and is used by over 6,500 schools. Acellus Academy is the official accredited online school of Acellus, and its high school graduates have been admitted to top universities around the country.