39 Celsius is a San Diego company that focuses on online marketing. They are SEO experts and can help a company promote themselves on the web effectively. They work with small businesses and enterprise companies. They deal with the search engine optimization of websites for clients. They will optimize a site's structure and content. They will also deal with incoming SEO from other sources. Paid search campaigns are a service they offer. This involves Google AdWords, Facebook, Instagram and other platforms. They can also optimize a business's online presence for local searches. Social media engagement and content strategies are part of their offerings as well. They have worked on projects for Culligan, Alere, Texadelphia and Journey Mexico.