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About Us


Pop & Lock LLC

Acquired by VSI, LLC on November 1, 2011, Pop & Lock has been the world leader in truck tailgate security for the past 20 years. Located in Green Bay, Wisconsin, Pop & Lock provides the aftermarket with the best security products for your tailgate, truck cap and tonneau cover. With over a hundred models covering most truck applications, you can bet there is a Pop & Lock for your truck!


VSI Lock and Key Solutions (

VSI Lock and Key Solutions (VSI) wants you to know that our doors are always open to provide the things you care about. We want open communication to better serve your changing needs. We will find the keys to help you unlock and plan the future of your business. We will be proactive with ideas, and flexible with your requests.

Owned by Vehicle Security Innovators, Inc. (Green Bay, WI), VSI is one of five 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, the name changed to VSI Lock & Key Solutions as our services evolved to assembly of automotive and truck locksets for the domestic OEM production environment.  By the end of 2004, VSI became the main supplier of locksets for the North American Heavy Truck market.

In late 2014, VSI became an employee-owned company, a strategic move that rewards employees for their role in the company’s success and helps ensure continued growth.  Studies have shown that the majority of ESOP companies showed increases in productivity, revenue, stock value and profitability. 

Today, VSI continues to grow market share through a strategic focus on manufacturing efficiency, quality and design/engineering services. It is this focus and each employee’s personal investment that allows us to pursue our everyday mission:  


To be the global leader in locking security products designed to protect freight and cargo for the transportation industry.


Handi-Man Marine LLC (

Built to withstand the rigors of marine life, you can count on Handi-Man Marine products to secure or repair your boats, docks and accessories. We'll do what it takes to get you taken care of --- guaranteed. We've been selling fasteners to the marine industry for over 30 years and we only do it one way---the right way! We are committed to your success.

We have experienced many changes in the Marine Industry over the past twenty years and Handi-Man Marine has led the way in setting standards of innovation, quality, reliability and customer service to our customers and partners. Our combined Handi-Man and S & J Products catalog offers the Marine Industry the broadest fastener and accessory line of products. We are your “One Stop Source”.

If for any reason you feel we have not lived up to your expectations, or you have an idea you would like to share, please pick up the phone and call us.


Freight Defense LLC (

With over 50 years of experience in the industry, Freight Defense provides security solutions for heavy-duty trucks, trailers & cargo containers. Whether a Fleet, Owner-Operator or an OEM, our suite of security products can protect your assets and freight from theft, tampering or accidental exposure. Our goal at Freight Defense is to give you peace-of-mind by providing the best security products with best-in-class performance & features.


Simply Keys (

Simply Keys is an online e-commerce key fulfillment website that was launched in late 2014. Simply Keys handles replacement keys for manufacturers for light and heavy duty aftermarket products. Simply Keys has the ability to create custom landing pages for companies that would like their key replacement services to blend in seamlessly with their existing website.