Gravitate Coworking is moving its Valley Junction location to Windsor Heights. Now renamed Gravitate Midtown, the coworking space will open on Sept. 1 at 6500 University Avenue, the company announced in a blog post. The move comes after West Des Moines City Council voted to end a building lease agreement with the West Des Moines Business Incubator in May, which subleased building space to Gravitate Coworking.