ABF Freight Systems

Ace Transportation, Inc.

Acme Truck Lines, Inc.

Active Safety Transport

Allied Automotive Group

American Freightways, Inc.

Anderson Trucking Service

Atlas World Group, Inc/Atlas Van Lines

Arkansas Best Corporation

Benton Express, Inc.

Comcar Industries, Inc

Crete Carrier Corporation

Dart Transit Company, Inc.

Estes Express Lines, Inc.

FedEx Ground

F.F.E. Transportation Services, Inc.

Gainey Transportation Services,
Inc.

Interstate Distributors, Inc.

Jones Motor Co., Inc.

Jupiter Transportation Co.

Landair Transport, Inc.

Mayflower Transit, LLC

McKenzie Tank Lines, Inc.

Mercer Transportation, Inc.

Morgan Drive Away, Inc.

Morgan Southern, Inc.

National Freight Incorporated

North American Van Lines

Old Dominion Freight Line, Inc.

Penske Auto Centers, Inc.

Penske Truck Leasing Co., L.P.

Prime, Inc.

Roadway Express, Inc.

Roberson Transportation Services

Roehl Transport, Inc.

Ruan Transport Corporation

Ryder Logistics & Transportation

Saia Motor Freight Lines Inc.

Schneider National Carriers, Inc.

Sitton Motor Lines

Southeastern Freight Lines

Stevens Transport

Swift Transportation Co.

Transport Corporation of America

Truck Air of the Carolinas, Inc.

Truckers Express, Inc.

United Van Lines, Inc.

US Xpress Enterprises, Inc.

USA Truck

USF Dugan

Ward North America

Werner Enterprises, Inc.

Willis Shaw Express, Inc.

Yellow Freight System, Inc.