Duncan & Son Lines, Inc. is a family-owned and operated trucking and freight company, established in 1943, that operates as a premier intermodal carrier focused on international container drayage to and from the ports of Long Beach and Los Angeles.




Get started with our comprehensive onboarding process
Complete account verification process including business documentation and tax information.

Ensure all products meet marketplace guidelines and quality standards.

Access comprehensive resources and tools
Get help with UNIS platform integration and channel connectivity.
Contact UNIS Support