Des Moines-based CDS Global Inc. has laid off 55 employees in its Des Moines, Wilton and Tipton offices. Forty-eight of those worked in the Des Moines office, reports KCCI.com. CDS Global is a magazine fulfillment company that providers customer and fulfillment services for other media, nonprofit and consumer brands. The company employees about 1,800 people in the U.S.