Locations Our Strategically Positioned Network is Ready to Serve You Our strategically positioned network of modern repair facilities throughout North America represents one of the industry’s largest independent bases of railcar repair assets. Our network provides access to all Class 1 railroads. Buffalo, New York Houston, Texas Logansport, Indiana Miles City, Montana Newton Falls, Ohio Oelwein, Iowa Sioux City, Iowa Texarkana, Arkansas Sayre, Pennsylvania Waterloo, Iowa Transco is part of the largest repair network in North America. The Marmon Railcar Repair Group includes Transco, Procor and UTLX. Click the links to their sites to learn more.