OEM
noun[C]
PRODUCTIONukusabbreviationfororiginalequipmentmanufacturer: acompanythat makespartsandproductsfor othercompanieswhichsellthem undertheirownnameor use them intheirownproducts:
Manymanufacturersareproducingautopartson anOEMbasis.
OEMcustomer/manufacturer/partner