Having said that some are pretty well known large companies, but the business units that sort of operate on their own if only due to their archaic nature. The company has a policy, it just doesn't always apply to them.
Logistics is a weird industry ;)
Like every logistics organization does something some weird way (carrier, client, end customer, everyone's accounting...), they're sure it is the right way, and then the next one does it the "right way" another way and now nothing is a 1:1 ;)
Lots of old / skewed / strange practices that requires a lot of unexpected maintenance / changes. It's easy to end up swimming in a lot of bad / not equivalent data.