Co-marketing (Commensal marketing, symbiotic marketing) is a form of marketing co-operation, in which two or more businesses work together.
"Co-marketing" began in 1981 when Koichi Shimizu, a professor at Josai University, published an article in a bulletin published by Nikkei Advertising Research Institute in Japan. Co-creation marketing and collaborative marketing are included within as part of Co-marketing.[1]