Providing top quality service to our customers since 1930 210-661-6791 ABOUT US COVERAGE MAP SERVICES TOOLS CUSTOMER SERVICE CAREERS CONTACT US DELIVERY ABOUT SMTL HOME / ABOUT US HOW IT ALL STARTED In 1930, Roy Gilbert Sr. started Gilbert Truck Line in Cotulla, TX with one used truck serving San Antonio, TX to Cotulla, TX. During 1940, He was able to secure authority to serve Laredo and the Mexican border. Through the 1940’s, the fleet grew to about 50 pieces of equipment. In 1950, Mr. Gilbert purchased Southwestern Motor Transport Inc., and merged the two companies. This brought the fleet to just over 100 units. Currently, we serve most of the U.S.A. in truckload and LTL. We also perform thru service between Mexico, Canada, and the United States with over 350 tractors. Previous In 1950, Mr. Gilbert purchased Southwestern Motor Transport Inc., and merged the two companies. This brought the fleet to just over 100 units. In 1930, Roy Gilbert Sr. started Gilbert Truck Line in Cotulla, TX with one used truck serving San Antonio, TX to Cotulla, TX. During 1940, He was able to secure authority to serve Laredo and the Mexican border. Through the 1940’s, the fleet grew to about 50 pieces of equipment. In 1950, Mr. Gilbert purchased Southwestern Motor Transport Inc., and merged the two companies. This brought the fleet to just over 100 units. In 1930, Roy Gilbert Sr. started Gilbert Truck Line in Cotulla, TX with one used truck serving San Antonio, TX to Cotulla, TX. During 1940, He was able to secure authority to serve Laredo and the Mexican border. Through the 1940’s, the fleet grew to about 50 pieces of equipment. In 1950, Mr. Gilbert purchased Southwestern Motor Transport Inc., and merged the two companies. This brought the fleet to just over 100 units. Next 123 HEADQUARTERS Our Address 4600 Goldfield San Antonio, TX 78218 Contact Information 800-531-1071 210-661-6791 Fax: 210-662-3295 custserv@smtl.com READY TO START SHIPPING? Currently, we serve most of the U.S.A. in truckload and LTL. We also perform thru service between Mexico, Canada, and the United States with over 350 tractors. GET A QUOTE CONTACT US 210-661-6791 Fax: 210-662-3295 4600 Goldfield San Antonio, TX 78218 Shipment info: custserv@smtl.com OUR COMPANY Employee Portal MyEmployee Page Contractor Portal Web Disclaimer SERVICES LTL Truckload Wing Express Distribution TOOLS MySMT Page Shipment Tracing Transit Time Calculator Rate Quote Pickup Request Infinity Training CAREERS Career Openings Owner Operator Job Application MYSMT PAGE CONTRACTOR Copyright © 2001-2020 Southwestern Motor Transport, Inc. — All rights reserved.