Ruby vs Scala
Ruby shows up at 6 of the 255 companies we track, Scala at 4. 1 have both.
Counts come from DNS, response headers, page source and public job posts; a tool named in a single job post is not counted. They show adoption among companies developers look up, not market share. There is no signed verdict for this pair yet.
Ruby
6
companies (2% of those tracked)
Only Ruby
5 companies, plus 1 with both
Usually paired with
Amazon Web Services (6), Stripe (5), React (4), Kubernetes (4), PostgreSQL (4)
Scala
4
companies (2% of those tracked)
Only Scala
3 companies, plus 1 with both
Usually paired with
Stripe (4), React (3), Kubernetes (3)