A company is a legal entity with registration and address (even if that is not necessarily the address of their actual office). At least in some jurisdictions

A company is a legal entity with registration and address (even if that is not necessarily the address of their actual office). At least in some jurisdictions it is actually mandatory to have this info on the company's website so that people can know who they are doing business with and also where to serve legal documents. Any website that goes to some effort not to disclose anything has to raise a massive red flag.