Q Research Software - Q is for the interpretation, analysis, visualization and reporting of market research data.
IBM SPSS Statistics - IBM SPSS Statistics is software that provides detailed analysis of statistical data. The company behind the product practically needs no introduction, as it's been a staple of the technology industry for over 100 years.
Tinn-R - Tinn-R, the R code editor
RStudio - RStudio™ is a new integrated development environment (IDE) for R.
NumPy - NumPy is the fundamental package for scientific computing with Python
Stata - Stata is a software that combines hundreds of different statistical tools into one user interface. Everything from data management to statistical analysis to publication-quality graphics is supported by Stata. Read more about Stata.