Swig is a specialty drive-through soda-fountain chain founded in April 2010 by Nicole Tanner in St. George, Utah. It is known for creating the "dirty soda" category, which combines popular sodas with cream, flavored syrups, and various add-ins. Starting from a small location near Utah Tech University, Swig has expanded to over 100 locations across 15 states, with plans to reach 1,000 locations by 2030.

The company emphasizes fast and friendly service, aiming to build a personal connection with customers. Swig's customer base includes soda enthusiasts, particularly younger demographics in the western and southern U.S. The brand has a strong following, especially in Utah, where it has multiple locations. Additionally, Swig is committed to community support through initiatives like the annual "Save The Cups" campaign, which raises funds to assist women with medical bills related to cancer treatment.