Probably any sort of international cargo service ought to work ok (though by boat, it will take at least 6 or 8 weeks to sail via the Panama Canal... they haven't started using the Northwest Passage yet).

But when you ask about cargo services, don't forget to ask if they can provide customs clearance as well. Admittedly it's an extra charge, but if you don't have a clearance agent, you'll have to get yourselves to the customs facility where your goods have landed, and you had better hope you have all the proper documents with you to clear your load. Using a clearance agent, they get all that from you up front and they deal with the bureaucracy.
Cheers,
Bev