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  • "I have planned a lot of offsites (probably more than 50) and this was the easiest, most pleasant, beautifully run one that I have ever had the pleasure of attending…"

    Cecile Heimann
    Omgeo LLC
  • "Let me say a huge thank you! I appreciate all you did to make sure our event went so perfectly. Thanks to everyone on your staff. Seaport is the ideal place for our conference, and I hope we can continue there for years to come."

    Dr. Michele Holt
    Massachusetts Music Educators
  • "Everyone has commented on how well the meeting went and the management team was thrilled at how well and smoothly the event took place."

    National Grid
  • "I appreciate all the work and care you and the staff here has taken with planning and execution of our meetings."

    Kaspersky Lab
  • "The majority of our senior management and our guests have rated the meeting ‘excellent overall.’ Their perception is, in large part, a reflection of your professionalism and personal commitment to helping us plan and execute a complicated day."

    Melissa Mahoney
More Testimonials

Commonwealth Ballroom

A Convention Space and Conference Center with Separate Registration Areas

Offering the utmost in design flexibility, the Commonwealth Ballroom is a virtual space that takes shape within the vast expanse of Commonwealth Hall. Ceilings soar to 18 feet, while dividers can configure the interior in a variety of creative ways. With direct street access from Seaport Boulevard – giving a grand sense of arrival – the Commonwealth Ballroom features a dedicated pre-function lobby, as well as separate registration areas and restrooms.


  • Location:
    Seaport World Trade Center, Harbor Level (Ground Floor)
  • View:
    Interior space – ideal for blackouts and projections
  • Features:
    • Highly flexible with multiple configurations
    • Pin lighting
  • Area:
    44,600 sq. ft.
  • Dimensions:
    115 ft. x 360 ft.
  • Height:
    18 ft.
  • Capacities:
    • Reception: 10,000
    • Theater Style: 3,000
    • Classroom Style: N/A
    • U-Shaped: N/A
    • Rounds: 2,500

Floor Plan:

Click to Enlarge
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