SIO2022 Hotel

Reserve a Room with SIO at the Hilton San Francisco Union Square

Following the postponement of SIO2022 to 24-28 March 2022, SIO Staff is working to secure a new discounted housing deadline. Stay tuned for updated information.

Stay with SIO when you attend the SIO 2022 Annual Meeting. Just two blocks from Union Square, our hotel is less than a mile from Westfield shopping center, the Powell Street cable car turnaround, San Francisco Museum of Modern Art, and Chinatown. Boasting the city’s highest skybar with panoramic views, we also have an outdoor pool and whirlpool, two restaurants, lobby bar, and grab and go market.



Housing reservations can be made starting September 1, 2021. At that time, attendees have the option of one king or two queen beds at the rate of $229.00 per night plus applicable taxes and fees. The reservation booking link will be available on this web page as well as in your registration confirmation email.


Check-in: 3:00 pm / Check-out: 11:00 am

Full property amenities and more details about the hotel can be found on their website here.

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Housing Alert!

Please do not make any reservations through any unknown housing or travel company. Hotel reservations for the SIO2022 Conference should be made directly with the hotel via the online reservation link which will be provided September 1, 2022 or by calling the reservations number for the Hilton San Francisco Union Square at 415-771-1400. Please note: National Travel Associates, Convention Housing Services, CHPlanners, EHS, and Exhibition Housing Management are NOT SIO approved suppliers.