Located at 3333 South Iron Street in Chicago, there is still-standing, a large truck terminal building that was known at one time to have many trucking companies as tenants. Many of the trucking companies that rented space in this terminal were smaller operations that would have used only a few dock doors. For example, Central Motor Lines from Charlotte, North Carolina, went as far north as Chicago and did not have a large enough amount of traffic to consider having their own terminal.  From the 1946 Chicago Motor Freight Guide the following companies had operations in that building:

All States Freight, Inc

Best Motor Lines

Burch Truck Lines

Burlington Chicago Cartage

Carstensen Freight Line

Central Motor Line

Chicago Rockford Motor Express, Inc

Exon Motor Service

F & S Transit Company

Gordon Transport System

Green Bay- Chicago Lines

Green Line Motor Express

Hawkeye Motor Express

Hi-Way Freight System

Illinois-Colorado Express

Kehe Motor Service

Motor Freight Corporation

Reed Transit Co

Roadway Transit Co

Rockford Motor Service

Southern Express

Taylor Transfer Co, Inc

West Shore Transport Co.

The photo is fairly recent, within a year or so. There is a historic aerial photo of the terminal but I have not purchased a copy of it and since it is available for purchase, I do not have permission to copy yet. As soon as I do, I will post it.