Since 1938, The Gillman Companies have been a family-owned and operated group of automobile dealerships. With over 70 plus ye ... ars of success, the Houston-based automotive group has 10 dealerships across Houston, Rosenberg, San Benito, Harlingen, and San Antonio representing Honda, Mitsubishi, Nissan, Chevrolet, Buick, GMC, Chrysler, Dodge, Jeep, and Subaru. The Gillman family of car dealers offers new quality cars, trucks, vans and mini-vans to areas of Houston, San Antonio, San Benito and Harlingen, Texas, including Buick, Chevrolet, Chrysler, Jeep, Dodge, GMC, Honda, Mitsubishi, Nissan, Chrysler, Dodge, Jeep and Subaru. Each of our dealerships also offers a wide selection of pre-owned inventory to choose from. read more