Adding Treehouse.

Contributor: Jennifer Hamilton, embryoconcepts@gmail.com
Source: team page http://teamtreehouse.com/about

The numbers I calculated for Treehouse:

Total Employees:	 58
Total Women:		 6
Women/Men %:		 10%
Total Devs:		 25
Total Women Devs:	 0
Women/Men Dev %:	 0%