Do you need a Marketing Agency in Oakland, CA? LocalSpark has found the top internet marketing agencies in the Oakland area. In today’s aggressive marketplace, it is critical to get help from a skilled marketing agency if your business wants to remain competitive. Marketing agencies help their clients with branding, web design, prints, logos, SEO marketing, and various other projects that improve your company’s image and reputation. Below, we have put together a list of the best Oakland, CA, Marketing Agencies.