Benefits of ISO 9001 quality assurance

So what are the benefits of ISO 9001 quality assurance?

One of the benefits is a saving in the costs associated with poor quality.

Of course, the savings depends on the actual cost of poor quality you are currently facing. And not all poor quality is easy to put a dollar figure on. For example, how do you calculate the cost of a lost customer due to dissatisfaction?

That said, internal poor quality can be identified and managed.

As the saying goes, if you can measure it you can manage it. If you can manage it you can improve it.