How can a company be libertarian? This doesn't make sense to me. A company is just an organization acting in some system. The system could be libertarian, or individuals could be prefer libertarianism, but not a company.
The companies could promote libertarianism, but given Mark Zuckerberg's public requests to have facebook regulated, I don't think facebook is an example of a large company that supports libertarianism, let alone anarcho-capitalism.
How many people do you think in Silicon Valley believe that individuals should have more power than any government? Or who believe that government is illegitimate? I don't feel I find very many of them.
I felt the previous generation of engineers and admin were more anti-authoritarian than they were libertarian.