promoter; booking agent
Refers to a person or company that arranges performances, concerts, or events, handling artist bookings and publicity.
He is a well-known promoter who brings many overseas artists to Japan.
Compound of 呼び (yobi, 'calling') + 屋 (ya, 'shop' or 'person who does something'), literally 'calling shop/person', referring to someone who calls or invites performers.