Travel Agency Tribes - mostly runs on Elixir now. Was previously 100% Ruby on Rails. We support thousands of travel agencies in North America and generate thousands and thousands of leads for them every week with the online marketing we do for them.
The entire Analytics pipeline was rebuild with Elixir/Phoenix and Citus (Postgresql).
Most of our offline jobs now run with Elixir.
80% of our travel supplier data API consumption happens with Elixir jobs.