Chateau Briand boasts more than 16,000 square feet of versatile space for corporate events, including sales meetings, training seminars, strategy sessions, trade shows, retreats, and fundraisers. We offer seven versatile meeting rooms that accommodates between 60 and 500 guests. Our spaces can be configured in a variety of set-ups, from theater and boardroom to classroom and u-shape. Our Long Island corporate event venue also offers adjacent breakout rooms for discussion groups. Host your executive dinners, holiday parties, and organization and association galas in the most elegant banquet and reception halls on Long Island, NY. Discover a place where bright ideas and good times come together.