Mar­ket­ing part­ners are com­pa­nies that help anoth­er com­pa­ny mar­ket its prod­ucts or ser­vices. This might involve devel­op­ing mar­ket­ing mate­ri­als, con­duct­ing mar­ket research, or pro­vid­ing mar­ket­ing sup­port ser­vices such as email mar­ket­ing or social media management