Defender Supply is an industry-leading emergency vehicle up-fitter based in Argyle, Texas that serves law enforcement agencies both nationally and internationally. Our direct partnerships with Chevrolet, Ford, Dodge and Ram and their franchise dealerships globally along with holding master distributorships with all major equipment vendors allow us to maximize your value. We strive to constantly maintain the highest standard of quality, customer service, and value that turns every first-time buyer into a lifetime partner.