Inquiry regarding shipping B2C-style B2B service providers for Japan

We are currently shipping approximately 20 boxes per day, or 500–600 boxes per month, to Japan via air freight. However, due to the recent increase in fuel surcharges, we are looking into switching to a ferry service that departs daily. - Are there any providers that offer daily shipping schedules using ferry services to Japan? - Are there any providers capable of offering B2B services in a B2C format?