To me in order to be a Open Source company your primary product must itself be Open Source.
RedHat as an example... RHEL is open source
GitLab.. GitLab is open source
These are open source companies
Hiring a few devs for work on some side projects that are open source does not make one an Open Source Company
If they open GitHub Core then they can claim to be a open source company
Also as mentioned elsewhere in this thread, Github has published plenty of open source software. Electron, Atom, resque, and updates to git itself.
As I clearly stated, GitHub can not be a Open Source company simply because they hired some devs to work on Open Source
Do you consider Microsoft to be a Open Source Company?
To me in order to be a Open Source company your primary product must itself be Open Source.
RedHat as an example... RHEL is open source
GitLab.. GitLab is open source
These are open source companies
Hiring a few devs for work on some side projects that are open source does not make one an Open Source Company
If they open GitHub Core then they can claim to be a open source company