Firstly, which companies are using Rust and how they use it?
Mozilla was the first investor for Rust and continues to sponsor the work of the open source project. Mozilla also utilizes Rust in many of its core initiatives including Servo and key parts of Firefox.
Read more about Rust in Mozilla
Rust is currently used by all Dropbox storage today, serving >500 million users, with greater datacenter efficiency.
Read more about Rust in Dropbox
Read the whitepaper