Elm Companies A curated list of companies using Elm in production, organized by industry. Inspired by Doomspork's Elixir companies list. Automotive CARFAX (GitHub) - CARFAX provide a comprehensive vehicle history database for North America. carwow (GitHub) - Based in London and Munich, carwow is the most convenient, stress-free way to find and buy a new car, at a price you can be confident in, and