Whether you're searching for a space for that all-day business meeting, or planning a reunion or special occasion, Hilton San Francisco Union Square has all the resources you need to make your next event a memorable success. Our flexible San Francisco meeting space spans over 130,000 sq. ft. and features state-of-the-art sound, lighting, and A/V capabilities. Additionally, our Event Team offers more than 80 years of experience in ensuring successful events with flawless execution.