Cloudera, founded in 2008, is perhaps the most established of the young Hadoop-focused companies. The Palo Alto, Calif.-based company offers a commercial distribution of the Apache Hadoop software, as well as Cloudera Enterprise, a subscription service that includes support and a portfolio of software called the Cloudera Management Suite.
In an example of how Cloudera's technology is finding its way into broad use, Oracle said in January that it had integrated Cloudera's distribution of Hadoop and Cloudera Manager with the Oracle Big Data Appliance.
Cloudera scored serious bragging rights in 2009 when it hired Doug Cutting as "architect." Cutting is the co-founder of the original Apache Software Foundation Hadoop project and he sits on the Apache Software Foundation board.