
After helping build 3D graphics and cable broadband, Thomas (TJ) Jermoluk returned to a smaller problem with a long reach: proving who you are online. His next company began with the absurdity of logging in to turn on a light.
The company behind RStudio spent years making data science software free. Its business appeared when banks, drugmakers and governments needed that freedom packaged with permissions, audit trails and a dependable place to publish.