Attending the 18th IMW in Vienna? Please book your hotel through the official IMW hotel reservation system.


The 18th International Myeloma Workshop will be held at the Messe Wien Exhibition & Congress Center.

The IMS has reserved rooms for IMW participants at hotels near the meeting venue. Hotel room reservations will be accepted on a first-come, first-serve basis until August 16, 2021. After this date, reservation requests will be subject to availability and cannot be guaranteed.

The IMS is partnering with SPARGO, Inc., the exclusive and official housing provider for the 18th IMW.  You may be contacted by companies that will offer to assist you in booking housing for the conference. The IMS does not endorse booking hotel reservations via sources other than through SPARGO, Inc.

A variety of accommodations in different categories are available. See the hotel map to view each hotel’s location in proximity to the venue.

Official IMW Hotel Accommodations

Single: A single occupancy room with one bed.
Double: A double occupancy room with one bed.
Double/Double: A double occupancy room with two beds.

  Hotel Category Distance from Venue Single Rate Double Rate Double/Double Rate
  Andaz Am Belvedere 4  5 Miles  225 EUR  255 EUR  255 EUR
  Hilton Vienna Danube Waterfront
  IMW Headquarter Hotel
4  1 Mile  319 EUR  339 EUR  339 EUR
  Hilton Vienna Park 4  2 Miles  349 EUR  369 EUR  369 EUR
  Intercontinental Wien 3  2 Miles  209 EUR  239 EUR  239 EUR
  Marriott Vienna 3  2 Miles  254 EUR  274 EUR  274 EUR
  The above rates include breakfast and VAT.

Fraud Alert

Several fraudulent companies, pretending to be associated with the Society and the 18th IMW, may appear in web searches or may have contacted you via email. Fraudulent sites can appear similar to the Society or IMW’s sites, in some cases even using the Society’s or IMW’s logo. They claim that they can book hotel rooms and/or register you for the IMW, but they are unaffiliated with the Society and the IMW.

To avoid these scams, it is very important that you only book hotel rooms and register through the links provided by the Society. The exclusive and official registration and housing provider for the 18th IMW is SPARGO, Inc. Be sure to verify the site address and/or email address in any link before continuing.

If you are ever unsure, you can email the Society or email SPARGO directly at or call toll free at 888-788-1522 (+1 703-449-6418 International).

Hotel Confirmation

If you make a hotel reservation online or by phone, you will receive a confirmation email instantly. If you do not receive your hotel reservation confirmation email, please first check your email spam filter before calling the IMW Housing Center.

Cancellation/Change Policy

To cancel or change a hotel reservation online, you will need your confirmation number and the email address used to make the reservation. Online requests are acknowledged with an immediate email confirmation.

You may cancel or make changes to your hotel reservation either in writing or online until 5:00 pm EDT (UTC-05:00) on July 30, 2021.  To avoid costly penalties, all hotel reservations must be cancelled 2 weeks (14 days) prior to arrival. If cancelled within 2 weeks (14 days) of arrival, a cancellation fee equal to the value of your entire stay (all nights previously booked) including tax will be charged to the credit card on file.

Written cancellation requests should be sent to the IMW Housing Center.  Cancellation requests will be acknowledged, and confirmation will be issued within five business days. After July 30, 2021, all changes to accommodations must be made directly through your hotel.

Between July 30th and August 1st, housing records will be transferred from the IMW Housing Center to the individual hotels; therefore, delegates are strongly encouraged to wait until after August 2nd to contact the hotels directly to make changes or cancellations.

All hotels’ cancellation policies will be strictly enforced. Please retain the cancellation confirmation from the IMW Housing Center or the cancellation number provided to you by the hotel, as proof of cancellation will be required to resolve any credit card disputes.

Group Room Blocks

A group room block is defined as 10 or more rooms. Please contact us to request a group room block. Groups or sponsors booking 10 or less rooms should book here.

Questions? Contact us.

IMW Housing Center
c/o SPARGO, Inc.
11208 Waples Mill Road, Suite 112
Fairfax, VA 22030 USA
888-788-1522 (US toll free)
+1 703-449-6418 (International)
Send us an email

Staff are available to assist from 8:30 a.m. to 5:00 p.m. EDT (UTC-05:00), Monday through Friday. The IMS Registration Center is closed on weekends and U.S. Federal holidays.

Photo Copyright: © WienTourismus/Christian Stemper