一档次: Dropbox, Square, Pinterest, Facebook, LinkedIn, Google, Twitter,
Apple
第二档次: Zynga, Yelp, Netflix, Skype, VMWare, Salesforce, Groupon, Paypal,
Evernote, Box.net, Quora, A9.com, 126Lab, Yammer, Jive, Wikimedia,
Craigslist
第三档次: Oracle, EMC, eBay, Intuit, NetApp, NetSuite, Yahoo, Adobe,
Autodesk, Symantec, Riverbed, Quantcast, Concur, Aster Data, Citrix, EA等
算上湾区以外公司, Amazon, Micriosoft可以排在第二档次
Expedia, RedHat, RackSpace, Akamai, Bloomberg等可以排在第三档次