Two Charlotte-based digital agencies have merged to form a marketing powerhouse in the Southeast. Once competitors, UNION LLC and Myjive Inc. will now both operate under the UNION name. The merger includes Myjive's sub-brands: digital marketing agency South and design-driven production company Untold. The merged company is moving into a new 14,000-square-foot office in the old Biltmore Dairy Building on West Morehead Street. That building is being renovated and is expected to...