SeekTable can be used for survey or questionnaire results analysis as it can summarize data by answers, calculate percentages, cross-tabulate and compare subgroups. Finally, it can visualize results with various charts.
You can check American Time Use Survey demo to get some examples of survey reports.
How to perform survey results analysis:
Export survey data to CSV.
Upload CSV file into your SeekTable account (max 50Mb compressed).
If survey data is too large for upload (like American Community Survey) you can import it into SQL database and configure it as a data source.