[Mikeb85]

The GPL specifically states that using code within an organization is not distributing it. Further, if employees (or even contractors) are paid to modify the code, the organization retains all rights to it, not the employees nor contractors. It's even within Goldman Sach's rights to prevent the release of the code, as they didn't distribute it to 3rd parties.

[EGreg]

Where does it say that? What is the relevant quote and exegesis?

[Mikeb85]

Read the definitions part at the top. What constitutes an individual and what constitutes distribution.

And what your rights and obligations are throughout the rest of the licence.