Fortune 1000 rank: 838
Best Companies rank: 6
No. of U.S. employees: 3,553
Most common salaried job (Avg. Pay):
MTS Software 4 ($129,000)
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).