Do you need an Online Marketing Company in Detroit, MI? LocalSpark has found the best digital marketing agencies in the Detroit area. In the current aggressive marketplace, it’s critical to seek out a professional marketing company if your company wants to stay at the top of the competition. Online marketers help clients with search marketing, web design, branding, logos, and various other projects that revitalize your business’ reputation and image. Below, we’ve gathered up a list of the best Detroit, MI, Online Marketing Companies.