"Siemens has multiple Hilton codes (D323009803, 323009803, N0079268, 302844100) reflecting different business units and tiers. hotelcorporatecodes.com notes Siemens in the "Sometimes" category at Hilton. UK/Europe Hilton properties have increased enforcement since 2022 — Siemens has major Munich HQ operations where Hilton properties regularly encounter Siemens employees. FlyerTalk's London Hilton enforcement thread documented: "show a company ID card, or pay the full walk-up rate." German Marriott properties near Siemens facilities: medium-high risk."

"I have been asked for Employment ID for the first time in London this year too, and multiple times so. Not had that in years."

"My spouse and I usually use his corporate leisure rate for reservations at Hiltons around the world and we have never once been asked for evidence of working for that employer, even when the reservations are in my name."