Jeff Greason is the CEO and Co-Founder of Agile Aero, Inc., a company targeting rapid prototyping capabilities for aerospace vehicles.  He is one of the founders of XCOR Aerospace and was its CEO from 1999 through February 2015,  after which he served as Chief Technologist. In November 2015 Greason left XCOR with two other founders to form Agile Aero.   He was a member of the XCOR Board of Directors until he resigned in March 2016 and no longer has any connection with XCOR Aerospace. 
Greason has been active in the development of the regulatory environment for the commercial space flight industry. He has worked with the FAA’s Office of Commercial Space Transportation (AST) since 1998, and has served on the advisory group to AST, COMSTAC as a member of the working group on reusable launch vehicles (RLV) since 2000, and as an invited full member of COMSTAC since 2005. He was one of the leaders of the development of the Commercial Space Launch Amendment Act of 2004. He co-founded the Commercial Spaceflight Federation (formerly Personal Spaceflight Federation).
Greason was named a member of the Review of United States Human Space Flight Plans Committee on May 7, 2009. Since then he has given a number of speeches on space policy and space settlement.  
In July 2003, Greason testified before the joint House/Senate subcommittee hearings on Commercial Human Spaceflight that addressed the transition from aircraft regulation to launch vehicle regulation for suborbital vehicles. 
Honors and patents
Greason holds 22 U.S. patents.