News Houston BizBlog: PROS Holdings Snaps Up Hot San Francisco Software Company December 16th, 2013 December 16, 2013- By Molly Ryan Reporter-Houston Business Journal Previous Ventana Research: PROS Will Acquire Cameleon to Enhance Sales Effectiveness Nov 6, 2013 Next MA Navigator: PROS buys rival SignalDemand for USD13.5m Dec 17, 2013