RStudio is now a partner of Quantide.
RStudio is one of the most important company on the R world. They developed the world famous RStudio IDE, both as Desktop Software and Server Edition (accessible from web). They developed also Shiny, that brings R to web, and a lot of R packages, such as ggplot2 and dplyr.
Quantide collaborates with RStudio as training and consulting partner. Andrea Spanò, founder and partner at Quantide, is now Training and Consulting Partner of the RStudio, Inc.