Tango Card is a company based in the United States that operates within the finance industry, specifically focusing on credit card and transaction processing, as well as banking. Founded in 2009, the company has grown to employ between 201 and 500 individuals and reported revenue of approximately $80 million. Tango Card's published document, an eBook titled "Maximizing Research Participation and Optimizing Incentives," discusses strategies for enhancing market research participation through effective incentive programs. The content emphasizes the importance of incentives in recruiting participants for various types of research, including consumer surveys and focus groups. It highlights that the value of incentives significantly influences participation rates, particularly among different demographic groups, with a noted challenge in engaging younger generations. The document also identifies preferences for reward types, such as prepaid and gift cards, underscoring the role of incentive value in driving research participation. Overall, Tango Card's expertise appears to lie in optimizing incentive strategies to improve market research outcomes.