Founded in 1994, Certain Software is a privately owned corporation that provides advanced technologies for meeting planners and event organizers to plan and produce a range of meetings and events. It offers Certain Registration, which is an online Software as a Service (SaaS) registration product for corporations, universities, associations and government agencies. Certain Software also offers software training and implementation services. The company produces an event management product that is used for the Olympic Games, United Nations World Summit and Rugby World Cup. Certain Software maintains its headquarters in San Francisco with regional offices located throughout the United States, Australia and the United Kingdom.

Website: certain.com

Phone: (415) 353-5330

Cross Streets: Near the intersection of Montgomery St and Post St