VSI, LLC is North America's largest producer of vehicle locks for the heavy truck market.

VSI designs, produces and sells mechanical locks to all major domestic truck manufacturers and their international affiliates for production and aftermarket. We follow AIAG guidelines including APQP to ensure quality and customer satisfaction. VSI is ISO/TS 16949 certified.

We offer custom, automotive quality solutions for low volume applications and aftermarket service.

Today, our primary market is North American Heavy Truck OEM's. Headquartered in Green Bay, Wisconsin, we support freight fleets, tool box manufacturers, marine, lodging, handle and latch manufacturers and construction.

VSI, LLC has been a leader in lock and key solutions for over 50 years.

We invite you to explore our site. If you would like additional information please email or call us at 920-499-0022.

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