Campus: San Mateo, Calif.
What happened: Siebel moved into its new headquarters, with a health club, swank cafeteria, and day care center, in early 2001, just as revenues were peaking. Rival software maker Oracle announced plans earlier this month to acquire Siebel, whose revenue has been on a three-year slide. (Photo submitted by Canonsreenu)
Campus: Redwood Shores, Calif.
Oracle, then a $584 million software company, set up shop in Redwood Shores in 1989. Its glass towers became a Silicon Valley landmark as Oracle went on to become the second-largest software company in the world. But even Oracle wasn't immune to the office curse: In 1990, the company had its first-ever money-losing quarter and was forced to lay off hundreds.
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