The company name derives  from strong Belgian draft horses  used to pull freight. 
I would like my logo to show a Belgian horse (or horses) pulling a cart (or wagon) with freight on it (i.e. packages). Please  convey that the horse (or horses) are strong, determined, and able to overcome any adverse conditions.
This logo will be displayed on the side of the truck doors and drivers shirts. 
Make the lettering bold and flashy, and the horse and cart (that can carry packages) simple but eye-catching.

great job! Have a wonderful day! Belgian Carriers