Otto Hofstetter AG
Machinery ManufacturingSt. Gallen, Switzerland51-200 Employees
Otto Hofstetter AG is a family‑owned Swiss machinery manufacturer specializing in the design, development, and service of injection moulds. Based in St. Gallen, its core focus is moulds for PET preforms, thin‑walled plastic packaging, cartridges, tubes, and moulds used in medical, pharmaceutical, and laboratory applications. The company serves customers across industries that require efficient, barrier‑enhanced moulding solutions, offering technologies that aim to reduce energy use, material consumption, and downtime, and provides after‑sales support and service contracts to maintain performance. Founded in 1955, the business operates from its location at 73 Zürcherstrasse in Uznach and emphasizes ongoing product refinement, including co‑injection and multi‑layer capabilities. In early 2026, it announced the introduction of new steel grades intended to reduce CO2 emissions without compromising quality or cost.