![Pictured: FreightCar America’s Castaños, Mexico, manufacturing plant, which just rolled out the company’s 10,000th railcar. (FreightCar America Photograph)](https://www.railwayage.com/wp-content/uploads/2024/06/fca-1-315x168.png)
Rittenbaum rising at GLC
Written by William C. Vantuono, Editor-in-ChiefMark J. Rittenbaum, Executive Vice President, Commercial & Leasing at The Greenbrier Companies, Inc. is transitioning to President of Greenbrier Leasing Corp. (GLC), in anticipation of James T. Sharp’s retirement Dec. 31, 2016.