Apparently, retailers are now aggressively adopting demand-based science and optimization technology to personalize and localize pricing, promotions, assortments, and space. Revionics seems to be benefiting from this trend. This is a greenfield opportunity as most retailers today are still using pesky spreadsheets or basic planning tools. With that being said, there is always competition, such as IBM DemandTec, SAS, or KSS. Pricing optimization is transformational technology, so retailers look at multiple vendors before making a selection. Revionics claims to be very happy with its win rate.
TEC blog post (Jan 2010): The Art, Science & Software Behind (Optimal) Retail Pricing – Part 5