ISO 9001 is an international standard that applies to quality management systems (QMS) and focuses on all the quality management elements that a company must have in order to have an effective system that allows it to manage and improve The quality of your products or services. Customers are inclined to suppliers that have this accreditation because in this way they ensure that the selected company has a good quality management system (QMS). This accreditation demonstrates that the organization is recognized by more than 640,000 companies worldwide. Every six months, an agent performs an audit of the registered companies in order to ensure compliance with the conditions imposed by the ISO 9001 standard. In this way, the clients of the registered companies get rid of the inconvenience of taking care of the control of quality of their suppliers and, in turn, these suppliers should only undergo an audit, rather than several of the different customers. Suppliers worldwide must adhere to the same standards.