What is an "ocean vendor"?

This story was posted already, but I really think we missed something. This Steve Ferreira guy is quoted-

"Amazon’s volume as an ocean vendor — that’s right, you heard me correct, they’re considered an ocean vendor — would rank them in the top five transportation companies in the Trans Pacific,”

They're considered an ocean vendor by who?

What is an ocean vendor? The internet is a ghost town on that term, other than in reference to Amazon.

https://www.cnbc.com/2021/12/04/how-amazon-beats-supply-chain-chaos-with-ships-and-long-haul-planes.html

Mr. Ferreira makes his money retrieving shipping overcharges for importers.

https://oceanaudit.com/