David L. Evans

National Science Teaching Association provides and develops standard based science education. Its principles are to embrace and model diversity through equity, to provide and expand professional development to support science education. The company was founded in 1944 and is headquartered in Arlington, VA.

Noblis, Inc. engages in provision of science based technology and strategy consulting services. It supports government and industry clients in the areas of national security, intelligence, transportation, healthcare, environmental sustainability, and enterprise engineering. The company was founded in 1996 and is headquartered in Reston, VA.