Defence IQ - By focussing on the research and development of specialist defence events, Defence IQ have established a reputation for bringing together speaker panels with a majority of military and government speakers, typically attracting decision making delegates a third of which come from a military background. Our events are unique, tailored opportunities to gain access to influential representatives and professionals and keep up to date with operational and industry initiatives and advancements.

Naval Research Enterprise Intern Program (NREIP): January 2004

The link above provides basic sonobuoy info:

Navy STTR 2004:

BAA 2004

SBIR 2004

DARPA BAA (open until December 2004).