Hortonworks is a commercial Hadoop company spun out of Yahoo in 2011. The company gives away its enterprise Hadoop platform, which is 100% Apache-based, for free. It makes money by selling subscription support. http://www.crunchbase.com/company/hortonworks

2012 Big Dat Revenue: $18m CEO: Rob Bearden

Big Data Products and Services: Hortonworks Data Platform Support subscriptions

Key Partners: Teradata, Microsoft Website: http://hortonworks.com Press releases http://hortonworks.com/about-us/news/

Hortonworks raised another $50m just before Hadoop Summit 2013 in June. http://hortonworks.com/blog/hortonworks-announces-50-million-in-new-financing-and-welcomes-new-investors-to-accelerate-next-phase-of-growth/