CompStak just made their final presentation at 500 Startups' Demo Day. Here is the video. Their demo starts at 42:30.

And here is their slide deck:
[slideshare id=16370368&doc=compstak-130205173951-phpapp02]

The RealDeal recently reported that "Compstak has also secured more than $1.1 million in funding from 26 investors including Expansion VC, the venture-capital arm of the Melohn family; Ryan Slack, co-founder of PropertyShark; and Berman Venture Capital, a wholly owned subsidiary of Rockville, Md.-based real estate investment company Berman Enterprises."

Congrats to CompStak. They're onto something great.