Uh, this is so far outside the norm of every company I’ve ever worked for/heard of that I think they’re safe not worrying about you in their business plan. Unless you’re working with classified data, that is — but those cases have tons of other requirements beyond working air gapped.
Now, there are other reasons you would want on-prem other than air gapped networks, but that’s not the discussion we’re having.
Edit: oh, this guy is a troll. Just read his other comments. Sigh.