Randy Liefer

American Institute of Aeronautics & Astronautics provides services in the field of aeronautical engineering & publishes technical journals. The company provides services such as publications & papers, courses & training and conferences & events. The company was founded in 1963 and is headquartered in Reston, VA.

Essential Space, Inc. provides training, coaching and consulting services in space and other domains. It offers understanding space, designing space missions and systems, applied space systems engineering, space system verification and validation, human space flight, applied model based systems engineering, space launch and transportation systems and essential systems engineering courses. The company also provides systems engineering consulting services. The company was founded in 2003 and is headquartered in Manitou Springs, CO.