This study examines various forms of support for service encounter employees. It proposes that employee support—including organization-level support perceived by employees, supervisor support, and service customer participation—affects employees' attitudes and behavior and further influences customers' evaluations of service quality. According to this study, which simultaneously considers data from both service encounter employees and customers, proximal support for employees—namely, supervisor support and customer participation—was found to have a greater impact on job satisfaction and service quality than macro-level support such as organizational support. Furthermore, it was confirmed that job satisfaction plays a powerful and central role in determining service quality. The job satisfaction construct was found to serve as a mediator linking employees' cognitive states regarding various support variables to service quality variables.