You can find some examples Fortune 100 customers on our website. Click on the different industry links and you'll see examples of each.
http://www.splunk.com/industries
Also just found this...
As of January 31, 2012, Splunk had over 3,700 customers, including a majority of the Fortune 100.
http://seekingalpha.com/article/508641-ipo-preview-splunk-moved-up
