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http://en.wikipedia.org/wiki/Apache_Accumulo

I think they are the cutting edge of this sort of thing. Think about military tech that we now use in everyday life, lots of innovations come from military applications. Think about memory foam and NASA.

Think about it they have more money to spend than anyone; corporation or government.

Or, y'know, the internet (ARPANET).

Might be able to get an idea if you go through old SBIR's