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Your Expert Partner in Quality Customized

Who We Are

At Zero Zone our purpose is crystal clear: to preserve our customer’s valuables through refrigeration. That’s why our cases and system, designed to maintain optimal temperatures, act as the perfect guardians for perishable items that require extensive cold chain management. Our products are engineered and built in the United States but our satisfied customers span the Americas as we help them meet their business and sustainability goals

When it comes to the food industry, we understand the importance of keeping products fresh and safe for consumption.

Our state-of-the-art refrigeration systems eliminate any worries of spoilage or decay, ensuring that your customers are always provided with the finest quality ingredients. Whether it’s supermarkets, discount stores, pharmacies, convenience stores, or any other food-related establishment, our reliable solutions guarantee an uninterrupted supply chain, allowing your business to flourish. But our dedication goes beyond just culinary endeavors.

We are equally committed to our industrial markets with applications such as cold storage/distribution, food processing, ice rinks, data centers and pharmaceuticals.
With our cutting-edge refrigeration technologies in place, you can be confident knowing that preserving the shelf life and effectiveness of pharmaceuticals or food is paramount. With our unwavering dedication to excellence and innovation, we go above and beyond to guarantee that your valuables are protected – maintaining their quality, freshness, and effectiveness.

Partner with us today and experience the peace of mind that comes from knowing your products are in the best hands possible.

After all, all we do is we keep things cold!

Our Vision Statement

Be the premier choice for reliable refrigeration solutions through enriching employee and customer experiences with a commitment to excellence and environmental responsibility.

Core Values
  • Respect: Recognizing and showing an appreciation of the value that every person has.
  • Integrity: Doing the right thing even no one’s watching.
  • Caring for our Family: People are important, support and empathy for all the people we work with is central to our culture.
  • Humility: Putting the needs of others before self, seek to serve rather to be served.
Enabling Values
  • Responsive to Needs: Understanding and recognizing the needs of our stakeholders and responding positively .
  • Working Together: Collaborating and cooperating to achieve objectives. It is more important what ‘we’ did than what ‘I’ did.
  • Continual Learning: Improvement does not come without learning. Continuous improvement is a result of continuous learning.
  • Process Accountable: Processes produce results and people follow processes; people produce results when they follow processes.

Our History

Originating from a humble beginning in a rented dairy barn in Pewaukee, Wisconsin, three seasoned refrigeration experts embarked on a daring venture, driven by their ambitious vision to craft “the best freezers in the business at a competitive price.” George Johnson, Duke Wegner, and K Hirata dedicated themselves to producing these freezers, marketing them to local grocery stores, and earning a reputation for both the exceptional quality of their work and an unwavering commitment to prioritizing customer satisfaction. Six decades have passed since the incorporation of Zero Zone on June 8, 1961. Today, the company proudly holds the distinction of being one of the largest manufacturers in the commercial freezer, cooler, and refrigeration systems market.

1961 - 1976

Founded in 1961, Zero Zone quickly became a leader in manufacturing reach-in display cases. Notable innovations in 1968, like the DCR-SL reach-in meat cooler, demonstrated their commitment to customizable options. To meet rising demand, Zero Zone relocated to Genesee Depot, WI, in 1976, expanding both capacity and capabilities.

1995 - 2008

In 1995, just two decades after its establishment, Zero Zone relocated to its present corporate site in North Prairie, WI. The company expanded its portfolio in 2002 through the acquisition of Systematic Refrigeration in Ramsey, MN, rebranded as Zero Zone Refrigeration LLC. Emphasizing a commitment to advanced refrigeration solutions and sustainability, Zero Zone joined the EPA's GreenChill program in 2008.

2019 - 2023

In 2021, Zero Zone expanded by opening a 100,000 sq ft manufacturing facility in Dyersville, Iowa. In 2022, the Ramsey facility grew, showcasing the company's commitment to expanding manufacturing capabilities. The trend continued in 2023 with a new 185,000 sq ft warehouse and distribution center in Mukwonago, enhancing logistical infrastructure for efficient operations and distribution.

Why We Do it

Shelf Life Extension

Refrigeration plays a crucial role in providing access and extending the shelf life of perishable items such as fresh produce, dairy products, meats, and pharmaceuticals. By maintaining low temperatures, refrigeration slows down the growth of bacteria and other microorganisms that cause spoilage, ensuring that these products stay fresh for a longer period. This not only helps to reduce waste but also allows these businesses to provide customers with high-quality products.

Extensive Range of Perishable Goods

Having reliable refrigeration systems in place enables our customers to offer an extensive range of perishable goods. These establishments can stock a wide variety of fresh fruits, vegetables, and other produce, allowing customers to access nutritious food options conveniently. Additionally, refrigeration facilitates the availability of temperature-sensitive medications and vaccines in pharmacies, ensuring their effectiveness and potency.

Saving Money

Refrigeration supports the selling of perishable items in large quantities, allowing these establishments to take advantage of economies of scale. By storing large quantities of perishable goods at optimal temperatures, our customers can minimize product spoilage and reduce losses associated with regular restocking trips. This efficiency translates into cost savings, enabling membership clubs to provide competitive prices to their customers.

Refrigeration systems play a critical role in meeting safety requirements by maintaining the necessary temperatures.

Customer Satisfaction & Safety

The benefits of refrigeration include extended shelf life, an expanded product range, cost saving through bulk purchases, enhanced customer experience, and compliance with safety regulations. These advantages contribute to the success and efficiency of these establishments, while also ensuring customer satisfaction and safety

We’ve Always Been Green


“We believe that sustainability requires continuous improvement toward a shared goal. Our goal is sustainable processes, minimizing waste, and decreasing global warming impact through innovative and responsible refrigeration products. By doing our part, we help our customers achieve their environmental goals.

We believe that securing the future means doing our part daily. It is up to us to choose to be better today. The better we are, the better we can be for the Earth around us. Through hard work and perseverance, we touch the lives of our associates, our customers, our partners and even those who do not know Zero Zone. We can cultivate a better tomorrow.

“At Zero Zone, our logo isn’t the only thing that’s green.”

     Glenn Kormanik, Chief Executive Officer


110 N Oakridge Dr
North Prairie, WI 53153

6151 140th Ave NW
Ramsey, MN 55303

2336 Industrial Parkway SW
Dyersville, IA 52040

525 Progress Ave
Waukesha, WI 53186

115 Hill Court
Mukwonago WI 53149


Zero Zone is a leading manufacturer in the refrigeration industry, specializing in display cases and refrigeration systems.

With two key divisions, we craft top-quality refrigerated and frozen food display cases found in grocery and convenience stores, as well as robust refrigeration systems for various applications, from food warehousing to pharmaceuticals. Our locations span from Wisconsin to Minnesota and Iowa.

At Zero Zone, you’ll become an essential part of our team and have the opportunity to shape your career. We’re all about hard work, collaboration, and respect, with a core mission to exceed customer expectations through innovation and quality. With over 60 years of industry leadership, our dedication to exceptional customer service sets us apart. Join us in the COOLEST team around and make your mark in the refrigeration industry with a top manufacturer.