Do you need an Advertising Agency in Philadelphia, PA? LocalSpark has analyzed the top web and digital marketing businesses in Philadelphia. In today’s aggressive market, it’s crucial to find a professional advertising agency if your business wants to remain competitive. Advertising agencies help clients with search engine optimization, PPC, web design, graphics, social media, and additional digital marketing strategies that revitalize your company’s success. Below, we’ve gathered up a list of the best Philadelphia, PA, Advertising Agencies.