Ask HN: Which organizations are the best at software development?

Yes, one can name Google or Uber as examples of places where great software development* takes place, but I'm curious what the HN community's take is on what other, non-obvious organizations or teams do this as well.

*I define great software development as those that produce the best outcomes compared to others. I think of rapid development/release, testable code, high-functioning teams, not only following best practices but creating innovating software as well.