From its 1977 start making recreational-vehicle and motorcycle seats in Lincoln, Nebraska, TS Tech Americas has grown into a Japanese-owned automotive manufacturer producing seating systems and interior components for major automakers worldwide. The Americas regional headquarters in Reynoldsburg, Ohio, coordinates a network of operations across North and South America, combining handcrafted trim expertise with advanced manufacturing technology. Its work is shaped by a focus on comfortable, safe interiors and a recycling-oriented approach to environmental stewardship.
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Okamoto Sandusky ManufacturingOkamoto Sandusky Manufacturing develops and processes synthetic leather materials for automotive interiors, serving North American and Japanese vehicle manufacturers from its Ohio operation. The company is part of Japan’s Okamoto Industries, established in 1934, whose automotive-interior work dates to 1950; its materials also support motorcycle seating and are developed with technical capabilities spanning North America and Japan.SANDUSKY, OH
Hayashi Telempu North America (HTNA)Hayashi Telempu North America (HTNA) makes automotive interior and accessory parts, with vehicle floor carpet as its core product and acoustic materials developed for cabin comfort. Headquartered in Plymouth, Michigan, the company traces its North American history to the 1983 establishment of AMTEX and now employs about 500 people across a network of U.S., Canadian, and Mexican operations. HTNA adopted its current name in 2012 after AMTEX merged with Hayashi of America.LEBANON, OH
Kasai North America, IncKasai North America makes automotive interior and exterior trim, from headliners and door systems to luggage components and injection-molded parts, for vehicles ranging from passenger cars to trucks and buses. Its North American operation began as M-TEK in Tennessee in 1986 and now supports customers through eight manufacturing sites across the Southeast and Ohio, backed by a design team in Michigan. The Manchester flagship includes a 562,000-square-foot plant, more than 500 employees, and an in-house testing center operating since 2015.UPPER SANDUSKY, OH
Setex IncFounded in 1988 to supply Honda of America, St. Marys-based Setex manufactures automotive seat sets and seat-frame assemblies, now producing more than 40 styles and models. A Tachi-S LTD Company, Setex supports its seating work with a logistics service center managing more than 11,000 part numbers and holds ISO 9001 and ISO 14001 certifications. Its community focus includes employee volunteer efforts and support for local education, health, arts, and environmental initiatives.ST MARYS, OH