I've seen a sizeable number of LCO in my area who do not have Company Sign or info of any kind on their truck or trailer. Even on commercial accounts. It's very obvious to me that they are doing this for a living. Is there any valid reason NOT to have your company sign on your truck or trailer? All I can think of is the following: They live in an area where the home owner association doesn't allow commercial vehicles parked on the street or driveway. Company sign would require commercial vehicle & trailer licensing. They are not remotely legitimate cash only un-licensed operator. Personal privacy is of the utmost importance to the owner. Any others?