Multiple addresses to one business listing

I have clients that have identical business centres (Only a single PLACE profile, website etc is required) However they have over 100 individual physical shop addresses which need pin pointing on the map.
It is obviously too much to expect the client to keep adding the same information for all but the actual location of each separate business address (this way would immediately lose all our business to these clients).
SO how do i have a single page with the business profile but all the separate addresses. Otherwise my place listings will been overun with hundreds of what will appear to be the same listing (which would look terrible on page)

I hope you can help.

Thanks