Certification of ISO consultants

Answer:
There is no particular “official” or legal requirements for someone to become an ISO 9001 consultant. Having said that, put yourself in the shoes of a potential customer. Would you prefer to work with someone without a CV, without any references, or would you prefer to work with someone with some experience or study about the job? I believe that a potential customer prefers to work with a consultant with a certification.

That is why Advisera developed such course for ISO 9001, ISO 14001 and ISO 27001 consultants. Course with a part based on the standard and the more important part based on good practices for developing, executing and controlling a management system implementation project. For example, for ISO 9001, check - free online training ISO 9001:2015 Lead Implementer Course - https://advisera.com/training/iso-9001-lead-implementer-course/