Worldwide, sports gambling is a multibillion-dollar industry. Despite the industry’s size and success, little research has been conducted on sport-gambling operators (SGOs), and no research has examined their presence on social media. As such, this exploratory study aimed to examine the social media habits of SGOs through a relationship-marketing lens. To do so, 16,466 tweets were collected from the Twitter accounts of six Australian SGOs, with descriptive statistics from tweets presented and Leximancer performing automated thematic analyses. Results indicated that SGOs are discussing professionalized sport, influencers, and subbrands, as well as extensively making use of hashtags and mentions. Given these results, the strategies that SGOs are using to communicate and interact with their consumers focuses particularly on a North American professional-sport and horseracing context. This research contributes to the growing understanding of social media stakeholders in sport and provides an initial starting point for future research on SGOs given the recent legalization of sports gambling in the United States.