Ran the CSV through our deduper first. Categorisation was granular enough to segment by sub-vertical without regex. Bought it as the seed list for a professional training institute outbound push in Australia. Otherwise no complaints.
Thanks for the detailed review, the email/LinkedIn coverage you mentioned is on our list for the next pass. If you want the gaps fixed sooner than the next refresh, open a support ticket and we'll spin a one-off pull.