An information processing system includes one or more intermediary apparatuses communicable with one or more output apparatuses, and an information processing apparatus communicable with the one or more intermediary apparatuses. The information processing apparatus includes circuitry configured to receive, from a terminal, specific information and a process execution request input to the terminal, identify a specific intermediary apparatus associated with a specific output apparatus based on the specific information in accordance with the process execution request, and transmit the process execution request to the identified specific intermediary apparatus. The identified specific intermediary apparatus is configured to perform processing in accordance with the process execution request transmitted from the circuitry of the information processing apparatus to control the specific output apparatus.