Iowa entrepreneurs will be able to take part in a pitch competition just before the 10th annual Prometheus Awards. Pitch & Grow Des Moines, a pitch competition, will be held from 8 a.m. to noon April 16 at the Iowa Events Center, the Technology Association of Iowa announced. The event will precede the Prometheus Awards ceremony.  Entrepreneurs will give 10-minute pitches in front of an expert panel. The panel will give feedback so entrepreneurs can refine their pitches. The contest is open to entrepreneurs at any stage of business development. Top pitches from the event move on to a final round where audience members vote for a winner.