Not employed by them at all and that seems an awfully knee jerk reaction there Peely.
I have experience of many schools and what I have seen is so many of the instructors at commercial operators are so far removed from the actual working side it becomes a moot point as to whether a school is part of a company or not.
In fact I believe there is a place to argue that a professional school specializing in training would be a better place to learn than a school that as run as a side line of a larger corporation.
I do however think that the small operators with a wealth of knowledge through years of experience where the student is training with that person is the exception to the rule.
I also make no apologies for coming from an era where presentation matters