TechStars Seattle director Andy Sack and entrepreneur Ray Ozzie

Team GeekWire is attending TechStars Demo Day, taking place today at the Showbox SoDo in Seattle. More than 600 entrepreneurs, investors, developers and geeks are now filtering into the old warehouse space.

Legendary software developer Ray Ozzie will be keynoting the event, starting roughly at 2:25 p.m. That will be followed by the 10 pitches from this year’s class. We’ve been profiling each of the companies in recent weeks as a lead-up to Demo Day (see list below), but there’s nothing quite like seeing the live pitches.

Even more impressive, I’m told that roughly a third of the companies have already closed their investment rounds. And another third are well on their way to financing success, raising between $400,000 and $2 million.

We’ll be tracking all of the action on GeekWire, including choosing our favorite pitches of the day. Check back here for updates, and a recap of Ozzie’s talk.

Live streaming by Ustream

Here are the companies presenting today:

The Bizible Team

Apptentive: “We make it easy for app publishers and customers to talk to one another in the app, creating stronger relationships and customer love.” Full profile here.

Bizible: ”Bizible solves the oldest question in marketing – what’s working?” Full profile here.

Glider: “Changing the way teams work together.”

Leanplum: ”Leanplum helps game studios use data to learn from their players and deliver them the best possible experience.” Full profile here.

LinksyInfluencers matter when it comes to turning fledgling product ideas into successes. Linksy identifies important people that help brands spread the word and grow their business.” Full profile here.

The Maptia team

Maptia: ”Maptia is building the most inspirational map in the world. Those of you who yearn to discover more about the world or to immerse yourself in new experiences will love Maptia.” Full profile here.

MobileDevHQ: “We help mobile app developers/marketers get more downloads through organic channels (e.g. App Store Optimization — ranking highly in app store search).” Full profile here.

Nveloped: “Regular email isn’t secure. We help users send and receive secure email easily using their existing email accounts.” Full profile here.

Sandglaz: ”For small high performance teams, Sandglaz is a simple way to collaborate and plan.”Full profile here.

Tred: “We deliver new cars for test drive to your driveway.” Full profile here.

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