About Us

William N Mason Inc. is a registered commercial carrier specializing as a regional heavy equipment trucking company based in Baltimore, MD.


registered commercial carrier

We Specialize In

We specialize in transportation of construction equipment and supplies from Earth moving equipment to material handling. Our drivers are highly adept at loading, securing and transporting any type of equipment or machinery. Our customers include equipment rental companies, contractors, dealers and distributors of all types of machines and supplies.

registered commercial carrier

We Are Professionals

Our team has the expertise and equipment to transport aerial-lift equipment, skid-steer loaders, backhoes, dozers, cranes and any other light to heavy construction equipment. Thanks to our numerous tandem and tri-axle trucks and multi-axle trailers, we service any location along the East coast and transport up to 100 tons.

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registered commercial carrier

Where Transport

William N. Mason Inc. guarantees satisfaction with every transport job it performs. We understand this is the only way our company will CONTINUE to thrive. We stand by our name and reputation. It is our goal to solve your heavy-equipment transportation needs.



With 22 trucks and 72 trailers, we are able to provide top-notch service to all our clients who are located or do business within our service area.

registered commercial carrier

William N Mason Inc. first opened back in 1945, but grew to the point that it was incorporated in 1974. Our company is a commercial, registered carrier and it is a heavy equipment, regional trucking business that operates from our base in Baltimore, Maryland. From humble beginnings, this company has grown to the extent that we now have 22 trucks along with 72 trailers that range in size from 5 to 13 axles. Our fleet allows us to create numerous combinations in our efforts to fill the needs of our clients. Our company owns high-flat, lowboy, step-deck, stretch and flatbed trailers. Size wise, these go up to 92′ in length go as low as 18″. There is no job we can’t handle.