Born from JR Manufacturing’s 1998 start making citronella buckets, AMS Seat Structures now manufactures automotive headrests, seat frames, and other formed wire and tube components. The company employs approximately 500 people across Ohio, Tennessee, and Mexico, with in-house prototyping and tooling supporting parts that are difficult to produce elsewhere. After a 2023 fire destroyed its more than 75,000-square-foot corporate facility, the team restarted production without disrupting customers and reemerged as AMS Seat Structures following Angstrom’s 2025 acquisition.
ISO certification
CamacoFounded in 1996 as a headrest-structure supplier, Camaco now designs, tests, validates and manufactures engineered seating structures and mechanisms for the global automotive industry. From its Farmington Hills headquarters, the company supports programs ranging from low-volume premium vehicles to high-volume global platforms through a footprint spanning six countries, 1.5 million square feet and roughly 3,500 employees. Camaco’s distinctive reach combines full-service engineering with vertically integrated manufacturing and its own Rebel Freight logistics division.LORAIN, OH
Stryver Manufacturing, IncWith more than 40 years of experience, Stryver Manufacturing is a Trotwood, Ohio, engineering and manufacturing company known for turning difficult production problems into working automation. Its strongest documented specialty is automotive seating, where its tooling has supported seat welding and assembly programs for nearly every major OEM, including Honda, Toyota and Tesla. Stryver is ISO 9001:2015 qualified and builds solutions for manufacturers in automotive, aerospace, consumer goods and other industrial markets.TROTWOOD, 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
GRAMMER AGGRAMMER AG develops and manufactures components and systems for passenger-car interiors, as well as driver and passenger seats for off-road vehicles, trucks, buses and trains. Founded in Amberg more than 100 years ago as a saddlery, the company has since grown from a regional seat-cushion provider into an international automotive and commercial-vehicle manufacturer, with 42 production, distribution and logistics sites in 20 countries.TOLEDO, OH