I do biomechanical research and train baseball pitchers. I have a big blog post coming up about machine learning using PITCHf/x data to see if you can predict injuries with publicly available data from MLBAM (hint: future is promising!).

My company is Driveline Baseball / Driveline Biomechanics Research. We also develop wearable computing technology to capture kinematics of the movie arm (you know this as "pitching mechanics").

Check us out!

http://www.drivelinebaseball.com (Seattle, WA)

numberfire out of nyc does advanced fantasy stats:

https://www.numberfire.com/

here's my startup/side project: http://app.pickemfirst.com

Hudl.