These three business ventures, ideas won tonight's local startup contest

Dave Castaneda with undaground pitches his company at the Will This Float? event held at the Revelry Room on Thursday, Dec. 10, 2015, in Chattanooga, Tenn. Ten finalists pitched business plans in the contest, and the selected winners were the company undaground in the best overall category, Southside Strings in best music & entertainment, and the CPR Lifewrap in best general business.

Undaground, an artist-powered streaming application offering live and on-demand shows, won the overall best idea tonight at this year's "Will It Float?" competition among new business ventures.

The 24/7 streaming service proposed by David Casteneda was voted the best idea by judges at the startup pitch competition tonight at the Chattanooga Choo Choo's Revelry Room.

Southside Strings, a musical instrument maker using 3-D modeling founded by David Dunn, was judged the best music idea.

CPR Lifewrap, a plastic CPR support product pitched by Felician Jackson, was picked as the best general business among the startups vying for investor and community support tonight.

The winners were selected by a panel of judges from 10 businesses that pitched their plans to more than 100 persons gathered for the event, which is organized by the Company Lab and supported by a variety of local businesses and foundations.