It's difficult to definitively say which companies are doing the "best" in digital marketing, as this can vary depending on various factors such as industry, target audience, and marketing goals. However, some companies that are often cited as leaders in digital marketing include: Amazon: Amazon's digital marketing efforts are focused on customer experience and optimizing the purchasing process, through tactics such as personalized product recommendations, easy checkout, and fast delivery. Google: Google is known for its effective use of search engine optimization (SEO) and pay-per-click (PPC) advertising, helping to drive traffic to its search engine and other products. Coca-Cola: Coca-Cola has leveraged digital marketing to create a strong brand identity and connect with consumers through engaging content and social media campaigns. Nike: Nike has used digital marketing to create a strong brand image and reach a younger, tech-savvy target audience through innovative digital campaigns and e-commerce efforts. Airbnb: Airbnb has effectively used digital marketing to reach travelers and build its brand, through tactics such as targeted ads, user-generated content, and email marketing. These are just a few examples of companies that are often recognized for their strong digital marketing efforts. The effectiveness of a company's digital marketing strategy will depend on various factors such as industry, target audience, and marketing goals, and it's important for businesses to continuously evaluate and optimize their strategies to stay ahead in the competitive digital landscape.