AdAmericas, LLC, which does busienss as Castells & Asociados, is a full-service marketing and advertising agency specializing in connecting its clients to Hispanic consumers. Services include strategic research and planning, media planning and buying, promotion, direct marketing, and event marketing. The agency serves national and regional clients including a few recognizable names such as Time Warner Cable , McDonald's , Nestl� Waters North America , and Dole Foods . The agency has put the star power of Spanish-language TV celebrities to work for its clients, including Univision 's popular talk-show host Cristina Saralegui promoting Nestl� Pure Life water. Castells & Asociados was started by President Liz Castells.