Formed in 2013, Custom Stainless Enclosures, Inc. was founded with a single focus: to build the most durable, reliable, and hygienic electrical enclosures on the market.4Xxtreme®. We offer the largest electrical door sizes in the industry for IP69K-rated enclosures.We offer the most complete line of IP69K-rated enclosures in North America. We separate ourselves from the competition through our three core “Uniques”, which we call The 4X Difference.Your equipment is unique, and your enclosures should be too. We offer limitless customization to fit your exact specifications. “Building Your Enclosures Your Way!”2021: Our Single Hygienic Quarter Turn design became an Innovation Showcase Winner at the Process Expo (currently known as EATS) – a revolutionary enclosure latching design that needs only one closing point to keep your electrical equipment perfectly dry, and maintain Type 4X and IP69K ratings. This same year, we launched our 4XProtect® Series Enclosures, which include specialized Push Button, Junction Box, HMI, and Power Distribution enclosures.2022: We expanded operations by opening a state-of-the-art manufacturing facility in Marshfield, Wisconsin. We equipped the facility with a cutting-edge Bystronic Laser and CNC Press Brake machinery and heavily invested in our workforce.2025: We evolved beyond our roots as a strictly custom enclosure company. To meet the fast-paced needs of our industry, we launched a complete line of standard enclosures and a new online store, offering stock inventory ready to ship.