Supership is a Japanese company that supports digital marketing and data use through carrier data, clients' first-party data, and advertising technology. Its marketing-solutions business covers strategy, data-environment development, digital-ad operations, and performance evaluation, with offerings such as CX consulting, advertising platforms, a public DMP, ad-verification services, and a generative-AI tool for creating banner ads. Its data-solutions business helps retailers and e-commerce companies build customer-experience and retail-media programs across online and physical touchpoints, and includes site search, product ads, and business SMS delivery. The official site displayed September 2026 news about a free trial campaign for its Creative AI banner-generation service.