I was at the NCCA Tehnical Roadshow last Tuesday in Shrewsbury and Woolsafe Organisation was there to give a talk. It is the product (the fluid) that gets Woolsafe certified, and the bigger the organisation the more they pay.
Remember the Which report of a few months back where they said clients may as well use liquid washing up fluid then an expensive carpet cleaner ie us? Well Woolsafe Org has been very verbal back to Which over that review, so they are working behind the scenes to promote the business of professional carpet cleaners.