For the fourth year in a row, TechCrunch Disrupt will take over the San Francisco Design Center Concourse, and we’re bringing the hottest startups and best minds in the industry with us. Block off September 7-11 on your calendar, because you’re not going to want to miss Disrupt SF 2013.

The Disrupt Hackathon kicks everything off the weekend before, where companies like GroupMe and Docracy first started as a gleam in some hacker’s eye. Then comes the main event, which starts every morning with one-on-one chats featuring TechCrunch writers and editors, special guest speakers and judges, along with panels of leading venture capitalists and entrepreneurs addressing the most pressing topics facing today’s tech industry.

After the talks each afternoon, chosen startups will pitch our esteemed judges for the Startup Battlefield competition, with the final presentations held on the last day of Disrupt, September 11th. Some truly amazing startup stories have had their humble beginnings on the Disrupt stage, like those of Yammer, GetAround, Dropbox, Redbeacon, and Mint.com.

Last year YourMechanic took home the Disrupt Cup, a giant $50,000 check and lots of glory.

Each Disrupt is better than the last, so there’s no telling what great things will happen at the SF Design Center Concourse come September.

Early bird tickets are available now and more details about Disrupt SF will follow. We’re very excited about being on home turf. But first we’ll be seeing you at Disrupt NY, of course.

Our sponsors help make Disrupt happen. If you are interested in learning more about sponsorship opportunities, please contact our sponsorship team here sponsors@techcrunch.com.