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Stellar Meeting Space in San Francisco

Among the Best Hotels Near the Moscone Center

Our location near Union Square puts Hotel Mark Twain in the heart of it all. The hotel is surrounded by the best of San Francisco: the world's hottest tech companies, forward-thinking art, theatre, music, shopping, and local restaurants. For business travelers and meeting planners on the go, Hotel Mark Twain goes above and beyond, featuring distinctive meeting spaces to our enticing guestrooms. Hotel Mark Twain also provides a prime location Whether it's on site, at the nearby Moscone Convention Center, or beyond, you'll find every manner of business amenity at your fingertips while staying with us.


The Penthouse 

The Penthouse is our signature Union Square meeting space and the ideal destination for your next business event or meeting. With a spacious offering of indoor and outdoor square footage, as well as the extraordinary city-wide views from our green 360-degree terrace, your guests will be captivated by the sights and sounds of San Francisco. Host a meeting or event, enjoy the sustainable habitat garden installation by award-winning landscape designers James Pettigrew & Sean Stout, and take full advantage of a number of other top-of-the-line amenities at our San Francisco event venue. These include:

  • High speed Wi-Fi 
  • Large screen television with Apple TV digital content 
  • Extensive natural light
  • A/V rental services
  • Custom catering options 
  • Creative multiple use setups
  • Kitchen 
  • Stackable washer + dryer 
  • Private entrance
  • 1,100 Square feet indoor space and 1,000 square feet of outdoor space
  • Capacity: Rounds: 40; Theater: 60; Classroom: 36; Conference: 22; U-Shape: 24; Hollow Square: 24; Reception: 75

The Fishbowl

The Fishbowl is our on-site boardroom, and the perfect place for small meetings, luncheons, or pop-up shops. This meeting space in San Francisco features amenities like:

  • High speed Wi-Fi
  • Floor-to-ceiling windows
  • A/V rental services
  • Custom catering options
  • Creative multiple use setups
  • 285 square feet
  • Capacity: 12

The Aquarium 

Flexible meeting space that can be tailored for board meetings, classroom style presentations, or social events. 

  • High speed Wi-Fi 
  • A/V rental services
  • Custom catering options 
  • Creative multiple use setups
  • 1,050 square feet
  • Capacity: Rounds: 40; Theater: 60; Classroom: 20; Conference: 30; U-Shape: 20; Hollow Square: 30; Reception: 40


Traveling to San Francisco on a business trip or conference? Hotel Mark Twain provides premier access to the Moscone Center. With primer boutique accommodations and a location only 10 minutes away from the pavilion, it’s easy to see why we’re the choice among hotels near the Moscone Center. During your downtime, be sure to take advantage of your time in the neighborhood, housing a number of essential San Francisco attractions.  

Contact us at or call 415.673.2332 ext 114 for more information on meetings and events at Hotel Mark Twain.