Viber has hired four partner agencies to help build the brand’s presence – a combination of award-winning public relations, creative, media and advertising experts, all sought out for their creative innovation and digital expertise. Agency partners include Droga5, a leading strategic and creative advertising agency; Laundry Service, a social media agency specializing in content creation and distribution; Essence, a global digital agency and the world's largest independent buyer of digital media; and Allison+Partners, known for their innovative approach to public relations. For more information, visit BusinessWire.