Knowing that contracts come and go over time, where can I find a list of current companies who have contracts with NASA to either do research or build stuff for them? My goal is to get an overall feel for who is doing what in the space industry, and I think that looking to the contracts that NASA gives out is a good way to find one piece of the puzzle. I'm not only looking for a list of specific contractors, but also a description of what each contractor is doing for NASA.
I'm hoping that, if such a list exists, that it is a dynamic list that gets updated over time as contracts are completed, rebidded, and won. Any help obtaining such information would be greatly appreciated.
If such information is limited to NASA personnel, who can I contact at NASA for such information?