The market size for international trade logistics is staggering...you have at least a hundred global logistics providers with market caps over $10B, and more than a handful of which are in the $>100B territory. And they have trillions in revenue combined. And they are in a capital intensive industry on low margins, and they dump tens of billions every year buying companies that can give them slightly better competitive advantages. And they ALL suck at regulatory compliance.
But here is the bigger secret: The direct monetary cost of compliance isn't the big pain. What these companies pay for is delay reduction. Customs delays can drastically affect end-to-end SLAs, have a huge impact on customer loyalty (If your shitty compliance led to my product being held in port for a month, I will never use you again), and they have massive impacts on capital utilization due to how difficult it is to plan in the face of seemingly random customs delays. For an industry that is judged on Wall Street almost purely based on capital utilization (return on capital), you can bet your ass that every single one of those companies will be throwing as much money at you as they can.