A reputable company that deserves it's reputation is probably not hosting phishers pages on their site. Sure, shit happens, but anything above a micro company that's hosting pages should catch that. The shared hosting company I used caught a breach on my personal page once, another time Google notified me: it's not rocket surgery to catch these things is it.

If the company is too small to monitor their own pages then I'd expect them not to be worried about this sort of liability (ie knowing of a breach, they're too small to be sued for much, presumably: if they were bigger they'd know about it already).