"Marriott luxury properties near financial hubs like NYC and SF have dedicated rate integrity teams. The SF Marriott was specifically noted for cracking down on corporate code abuse. HotelCorporateCodes.com rates Goldman Sachs as "Sometimes" for ID checks. No documented full-rate charges found in public forums, but Asian properties are more likely to ask; US properties inconsistent. Business card typically accepted when asked."

"I am very rarely asked to prove my eligibility for a rate...but they have every right to ask and if you can't produce it, you will be re-rated to the current rate, which is often even higher and there is no guarantee points rooms will be available. Doing online check in rarely helps this as most properties don't actually do online anyway - especially to people who are not returning guests to the property or elite. You are taking a gamble. One that is likely to be fine. But understand you are intentionally breaking the terms of the bonvoy program and if someone really cared, there can be consequences."

"My last couple of corporate RFID cards had no company name on them for security purposes. My current company doesn’t do business cards. I use my Bonvoy card for corporate travel to get the points. I’d have to write them an email standing at the check in desk, I guess."