Do you need an Advertising Agency in New Jersey? LocalSpark has found the top web and digital marketing agencies in New Jersey. In today’s aggressive marketplace, it’s important to seek out a reputable advertising agency if your company wants to be competitive. Advertising agencies help clients with social media, paid advertising, graphic design, search optimization, web development, and additional digital marketing strategies that promote your company’s online image and outreach. Here, we’ve put together a list of the best New Jersey Advertising Agencies.