SENN AG is a leading family-owned company with almost 70 years of experience in the fields of steel construction, metal construction, sheet metal and stainless-steel center, emergency power systems, and crane & transport. At the company headquarters in Oftringen, strong performances are achieved to the advantage of our customers through the use of state-of-the-art production facilities. Innovation and a sense of responsibility towards business partners and employees characterize the corporate culture of our family business, which is currently led by the second generation.

stetra GmbH and SteelFire specialize in high-quality metal construction, balconies, railings, stairs, doors, and custom steel structures in Switzerland. We provide tailor-made solutions for residential and commercial projects, including balcony glazing, glass railings, and canopies. SteelFire enhances outdoor spaces with stylish fire bowls, premium barbecue accessories, and exclusive garden furniture. Our products stand out for their precision craftsmanship, durability, and elegant design. Trust Swiss expertise for metal construction and sophisticated outdoor living solutions.

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