Gunther Spelsberg GmbH + Co. KG, headquartered in Schalksmühle, Germany, is a leading manufacturer of electrical installation and enclosure systems. Founded in 1904 by Gunther Spelsberg as a locksmith shop, the company has evolved into a globally recognized specialist in connection and distribution technology. Its core business focuses on high-quality junction boxes, terminal boxes, industrial enclosures and cable glands for building, industrial and outdoor applications. Spelsberg's product portfolio includes the versatile Abox series for adaptable wiring, the WKE and KEE series for industrial terminal and control housings, and the Smart range for IoT-enabled installations. The company is known for IP68-rated and flame-resistant (e.g., V0 material) enclosures that meet strict international safety standards. Spelsberg holds a strong market position in Europe, especially in Germany, and competes globally through subsidiaries like Spelsberg els UK. With numerous patents and a focus on customized solutions, it serves sectors such as renewable energy, railway infrastructure and automation. As a family-run business, it emphasizes sustainability and “Made in Germany” quality, with production primarily in state-of-the-art facilities in Germany and the Czech Republic. Its products are distributed to over 50 countries, reinforcing its reputation as a reliable partner in electrical connectivity.