Great article, thanks. We are in the software industry, so ISO 9001 is slightly easier than in the production industry. Nevertheless, we also achieved it in around 4 monhts without any help of any consultants.

Our key was to go completely paper-free and Excel-free. Here are my thoughts and learnings on it: https://medium.com/the-uncool-entrepreneur/how-to-achieve-iso-9001-certification-without-paper-folders-and-excel-lists-eb26e9d37995