Since 2014, Neturen Czech has made high-strength steel spring wire at the Triangle industrial zone near Žatec, using the induction-heated ITW technology developed by Neturen Japan in 1977. Its fully automatic lines produce wire with strength of up to 2,000 MPa for cold-formed industrial springs, including vehicle suspension springs, while a team of more than 40 employees handles setup and quality control. The company combines this specialized process with a small, friendly working atmosphere and holds ISO 9001:2015 and ISO 14001:2015 certification.
ISO 9001:2015 Quality Management System
ISO 14001:2015 Environmental Management System
Neturen America CorporationNeturen America Corporation is a Hamilton, Ohio joint venture registered in 2007, with operations beginning in 2008, that manufactures high-strength induction-tempered steel wire. Using technology developed by Neturen Japan, the company transforms raw steel wire rod into finished wire coil for industrial spring production, including automotive suspension springs.HAMILTON, OH
Diamond Wire Spring CompanyFounded in Pittsburgh in 1939, Diamond Wire Spring Company designs and manufactures industrial custom and stock springs and wire forms. Still independent and third-generation family-owned, the American manufacturer serves customers from three ISO 9001:2015-certified plants and a stock warehouse, with thousands of springs available for same-day shipment. Its long history includes specialized work for demanding fields such as rail transportation and medical equipment.GLENSHAW, PA
The Yost Superior CoFor more than 100 years, family-owned The Yost Superior Co. has manufactured custom springs, wire forms and small stampings from its Springfield, Ohio operation. Its engineering team supports projects ranging from one piece to one million, with more than half a million pounds of wire on site and experience serving specialized applications across many industries. Yost Superior is ISO 9001:2015 certified for the manufacture of springs, wire forms and small stampings.SPRINGFIELD, OH
Twist IncFounded in Jamestown, Ohio, in 1971, Twist Inc. has grown from a six-employee shop into a 10-plant metal fabrication company that makes precision springs, wire forms and custom stamped components. Its in-house engineering, manufacturing and finishing operations support customers from concept through tested production, while its more than 300 employees serve a broad industrial base from facilities in Ohio and Mexico. Twist is recognized as a Top 5 U.S. spring manufacturer and maintains ISO 9001 and ISO 14001 compliance.JAMESTOWN, OH