"I would beleive that ICON would be the maker, as recent (from a few years' ago that are being "caught up with" now) Nevada Gaming Regs require that the manufacturer's name or logo be on at least one side of the chip.
This is why many similar "re-order" looking chips have been released in the last year or so, mainly from paulson with a smaller inlay"

Not exactly true!
Small inlays are about 10¢ cheaper.
HC logo must be on them but it had been in UV on the earlier orders. UV costs 10¢ per chip, if you don't want the HC to show.
So small inlay and HC showing saves 20¢ per chip and keeps the cost close to the face value.
It is all about the $$$$$$!!!