See the full details on this at their website: http://www.spacesymposium.org/
The Space Foundation's 30th Space Symposium, 19-22 May 2014
The Space Symposium, held at The Broadmoor Hotel in Colorado Springs, Colorado, has brought together space leaders from around the world to discuss, address and dream about the future of space since the inaugural event in 1984. Attendees at that original event numbered barely 250 space enthusiasts, while participants at this year's 29th National Space Symposium surpassed 9,000. The Space Symposium has become widely known as the premier U.S. space policy and program forum and as the "must attend" opportunity for information on and interaction among all sectors of space.
Called the National Space Symposium for the first 29 years, the event has been renamed Space Symposium to reflect the event's truly global profile.