The Boston College Institute for Scientific Research hosted the International Beacon Satellite Symposium in 2007. The next Beacon Satellite Symposium will be held in Barcelona, Spain on June 7-11, 2010. Their website is here.
The Boston College Institute for Scientific Research co-hosted the first Satellite Navigation Science and Technology Workshop for Africa at the Abdus Salam International Centre for Theoretical Physics in Trieste, Italy 23 March - 9 April 2009. The next conference will be in 2010. The announcement poster is here.