What makes it so great?
Data-storage company climbed 21 spots as employees cheered enhanced benefits for parents of special-needs children, widespread use of flexible schedules (95% of employees), and a soaring stock (up 50% in 2006).
Headquarters: Sunnyvale, Calif.
Top 3 (of 50) U.S. locations: Sunnyvale, CA, Research Triangle Park, NC, Mclean, VA
2005 revenue ($ millions): $2,070
Full list: 100 Best Companies to Work For