According to CBInsights there were ~8000 deals in 2015.[2]

If we combine the above two facts and do a very conservative assessment, there will be at least 7000 failed companies.

I have a very simple question - What happens to the codebase of these companies?

Can we do something with it?

[1] - http://blog.compass.co/discover-the-patterns-of-successful-internet/

[2] - https://www.cbinsights.com/research-venture-capital-2015