In 2018 a group of Valve staff tried to figure out just how efficient they were being—and found they were making more money per head than Apple, Facebook, and nearly every tech giant out there

https://lemmy.ca/post/17417168

In 2018 a group of Valve staff tried to figure out just how efficient they were being—and found they were making more money per head than Apple, Facebook, and nearly every tech giant out there - Lemmy.ca

And that for being a non-public company.
Non public should be more efficient from the labor cost savings of not having to file all the sec documents quarterly and legal costs of following public company regulations.
This isn’t totally true. Private companies can still have shareholders that demand info. Their aren’t the same level of regulations, but it’s not nothing.