Nagios - Complete monitoring and alerting for servers, switches, applications, and services
RStudio - RStudio™ is a new integrated development environment (IDE) for R.
Gitwin - Enable your Windows system as a powerful and secure Git repository. Supports ssh, http(s) transports. Gitweb with highlighter and gravatar support available.
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.
NIXStats - SaaS monitoring tool for window/linux servers and websites. Think up-time robot but with more features.
JMP - JMP is a data representation tool that empowers the engineers, mathematicians and scientists to explore the any of data visually.