I've just started the list. I need your help to finish it. I want to include companies whose core business is analytics / data science / big data.

• FICO (Fico) - http://finance.yahoo.com/q?s=fico&ql=1
• SPLK (DataWatch) - http://finance.yahoo.com/q?s=splk&ql=1
• DWCH (Splunk) - http://finance.yahoo.com/q?s=dwch&ql=1
• TIBX (Tibco) - http://finance.yahoo.com/q?s=tibx&ql=1
• PVSW (Pervasive) - http://finance.yahoo.com/q?s=pvsw&ql=1

Other companies

• SAS, Asterdata, KXEN: private, not publicly traded
• Teradata, Oracle, Sybase, EMC/Greenplum: core business is databases, servers, cloud rather than analytics
• SPSS, Netezza: acquired by IBM
• Google, Facebook, Amazon, LinkedIn: business models deeply rooted into analytics, but not offering analytic solutions as core bussiness
• Deloitte, Market research companies offering consulting services
• IBM: analytics is not the core of their business