Successful Marketing & Outdoor Advertising Solutions Key Media Works builds effective multi-channel campaigns applying 21 years of experience working with national, regional, and local partners. Learn More Outdoor & Digital Amplification Key Media Works has inventory of 100+ billboards in the Philadelphia Market. We offer personalized service and expertise from media planning, activation and optimization, to post campaign reporting and analysis, including digital amplification. Learn More Profiles of Success Learn More Helping direct and agency clients achieve their marketing objectives: Plan a campaign with us today. Collaborate