Vandersteen & Sons

We provide security solutions for a wide variety of markets with products including unbranded locksets & cut keys, manual & power tailgate locks for your pickup truck or replacement locks for your truck toolbox.

To be the global leader in locking security products designed to protect freight and cargo for the transportation industry. Vehicle Security Innovators, Inc. (Green Bay, WI), is the parent company to four strategic business units focused on custom security and maintenance solutions for the transportation industry. Originally founded in 1948 as Vandersteen and Sons, VSI's goal was to provide lock and key services to the locksmith industry. In 1989, our services evolved to assembly of automotive and truck locksets for the domestic OEM production environment.

VSI Security Solutions designs, produces and sells mechanical locks to all major domestic truck manufacturers and their international affiliates for production as a tier 1 & 2 supplier. Pop & Lock provides the aftermarket with the best security products for your tailgate, truck cap and tonneau cover as well as additional cargo security products aimed at deterring theft. Freight Defense provides trailer hasp & seal protectors, padlocks, tool & battery box latches, anti-siphon inserts, locking DEF caps, replacement locksets & keys, air brake locks and power locks for cargo vans and roll up door truck bodies.