Certain Registration™ is the leading online Software as a Service (SaaS) registration product used by the world’s largest corporations, universities, associations and government agencies. events™ is the top ranking events management product used by associations, continuing education and world events such as the Olympic Games, United Nations World Summit and Rugby World Cup. Certain is the leader in setting the standards for security and data privacy, recently recognized as the first online registration company to attain the highest level of e-commerce security, Payment Card Industry Level 1 Compliance for Service Providers. Founded in 1994, Certain is a privately held corporation, headquartered in San Francisco, California with regional offices in the United States, Australia and the United Kingdom.