Is there really a reason/data to think that open source companies are better places
(better culture) to work at compared to another company of the same size? Or
is it just assumption?
As a note, "open source companies" != "tend to open source more code".
There are relatively few open source companies. Most companies which distribute open source do so for part of the company which is not directly connected to revenue generation.
There are relatively few open source companies. Most companies which distribute open source do so for part of the company which is not directly connected to revenue generation.