What is the Niner Empire. We are the greatest fan base of all time for the San Francisco 49ers. This site is designed by the fan base and for the 49er fan base. We have over 35 Chapters that are also part of the San Francisco 49ers booster clubs. The goal is to have a Niners fans base in every city, state , and country. Basically if you are a niner fan you are part of the Niner Empire. If you are leaving on a vacation or a business trip and would like to hang or watch games with other 49er fans please email us at [email protected] and we will send you the right direction. During the off season some of the NINER EMPIRE chapters gather for BBQ’s, community events, and dinners.