Mountain View, Calif.
CEO: Jim Vogt
Originally launched in 2009 with the name GOTO Metrics, Zettaset has developed a fault-tolerant system built on Hadoop and other open-source technologies for aggregating and analyzing massive amounts of data. The technology, according to the company, helps manage the health, security and administration of the entire enterprise Hadoop system. Zettaset, based in Mountain View, Calif., launched version 4 of its software in December with new service management features and a unique visual user interface. The company renamed itself in July (after closing a $3 million round of financing) after a zettabyte -- equal to 1 million petabytes or 1 billion terabytes of data.