Del Mastro Outdoor

Del Mastro Outdoor is a woman owned out-of-home media company headquartered at 5 Penn Plaza in New York City. Founded in 1993 and formerly known as City Outdoor, the company was renamed under the leadership of president Dawn Del Mastro Chruma. Del Mastro Outdoor owns and operates a plant of premium large-format displays, including high-profile bulletins, digital billboards, wallscapes, and windowscapes, concentrated in major urban markets.

Its inventory spans several of the country's largest metropolitan areas, with locations in Boston, Chicago, Los Angeles, New York, and San Francisco, positioning the company to reach audiences in dense, high-traffic neighborhoods. The company focuses on increasing brand awareness in urban corridors, offering advertisers prominent large-format placements designed to command attention in walkable, high-visibility environments. Del Mastro Outdoor markets its inventory to national brands, agencies, and media buyers seeking efficient reach across multiple top markets through a single operator.

Its mix of static bulletins and wallscapes alongside digital bulletins allows advertisers to combine long-term flagship presence with the flexibility of rotating digital creative. As a woman owned independent media owner operating premium sites in several major designated market areas, Del Mastro Outdoor emphasizes high-impact locations and direct service. The company's multi-market footprint and focus on landmark large-format displays make it a specialized out-of-home partner for advertisers targeting urban audiences in some of the largest and most competitive media markets in the United States.