Interview 
Software specialized in the creation of online questionnaires and poll a population and to process the data on-line. Multilingual site.
http://123interview.com/Sawtooth Software, Inc.
Provides software for online surveys, conjoint analysis, and quantitative marketing research. Products include ACA, CBC, CVA, Ci3, and hierarchical Bayes analysis.
http://www.sawtoothsoftware.com/
Skipton Information Group
Provides global marketing systems and market analysis network planning. Includes company profile.
http://www.eurodirect.co.uk/
