Profile: Witko, Inc. provides contract packaging solutions. Our contract packaging services include package design, sourcing & production, packing and fulfillment. We deliver stretch pack, display building, prototype packages, shrink sleeves and shrink multi-pack. We offer custom thermoformed packages including clamshells & blister packs. Our shrink sleeves are used to bundle two items of like or different size and shape, such as a bonus pack combination.