In Forrester's 15-criteria evaluation of enterprise Hadoop solution providers, we found that in the Leaders category, Amazon Web Services led the pack due to its proven, feature-rich Elastic MapReduce subscription service; IBM and EMC Greenplum offer Hadoop solutions within strong EDW portfolios; MapR and Cloudera impress with best-of-breed enterprise-grade distributions; and Hortonworks offers an impressive Hadoop professional services portfolio. Strong Performer Pentaho provides an impressive Hadoop data integration tool. Of the Contenders, DataStax provides a Hadoop platform for real-time, distributed, transactional deployments; Datameer has a user-friendly Hadoop/MapReduce modeling tool; Platform Computing and Zettaset offer best-of-breed Hadoop cluster management tools; and Outerthought has optimized its Hadoop platform for high-volume search and indexing. HStreaming is a Risky Bet with a solution that is strong in real-time Hadoop.