Data Call Technologies sells dynamic content subscriptions to the digital signage industry. Digital signage refers to the LCD and LED displays businesses use in retail stores, airports, restaurants, and other commercial venues. The core problem Data Call solves is that static promotional content on digital signage becomes repetitive and viewers tune it out. Data Call provides a constantly updated stream of content — news headlines, sports scores, weather, traffic, and financial data — that keeps viewers engaged alongside a customer's own marketing messages. Data Call licenses content from established providers like news wires, sports data services, and weather providers, then packages it into standard formats (XML, JSON, RSS, JPEG, MPEG) that slot directly into a customer's existing digital signage system. Customers access and manage subscriptions through Data Call's self-service web portal, the DLManager. Data Call earns recurring monthly and annual subscription fees, with revenue driven by the number of subscribing customers, content plans selected, and display endpoints licensed. The primary cost of revenue is third-party content licensing fees. Data Call is very small, with roughly $540K in annual revenue and two full-time employees — both founders — operating out of a single office in Friendswood, Texas. The business carries significant customer concentration risk, with one customer accounting for approximately 63% of FY23 revenue.