"EMC Corporation (now Dell EMC) carries a three-letter ticker-style code listed across major aggregators. hotelcorporatecodes.com rates it "Sometimes." EMC merged into Dell in 2016, meaning legitimate EMC-branded employee credentials no longer exist — a fact that could increase scrutiny at properties aware of the company's acquisition history. Standard Medium rating applies consistent with tech-sector patterns: discount depth drives enforcement, not company name alone."

"My employer does not have a corporate rate but when I'm consulting for a company that does, I use theirs. I've only been challenged for identification once. In that one situation I explained the consulting arrangement, and the desk clerk accepted it without a badge or business card (neither of which I had anyway)."

"I have stayed 100s of times with various corporate rates (including Japan) and the only hotel that has asked is W hotels. Even then they didn’t push much. I have been a consultant for 20 years and many clients require you to use their rates when they are paying the bill. The hotel doesn’t have an up to date list of every employee that works for a company globally. The woman at the W said “I don’t really care, just show me anything on your phone that says your name and that company. You can type an email now “."