Exhibitors Housing Services trolls the internet to find Expos that list their exhibitor's contact information. They then take that information and pretend to be contracted by the event's hotel to book rooms on their behalf. This is a SCAM! If you receive a call from anyone at this company, DO NOT book with them under any circumstances. If you are unlucky enough to believe them and book a room you may not actually have one at the hotel. Also, if you try to cancel your reservation they will charge a 25% cancellation fee. I am currently working on getting my company's credit card charges reversed.
I don't want anyone else to fall for their scam!