A fourth-generation family business founded in 1920, Swiss Jewel Company makes precision synthetic sapphire and ruby components for optical and mechanical applications. From its early sapphire bearings for timing instruments, the company has grown into a worldwide supplier offering stocked parts alongside custom components, with support ranging from small R&D runs to OEM production in the millions.
American Swiss Products Co., IncSince its 1954 founding in Rochester, American Swiss Products has made custom micro-miniature components, from simple pins to complex multi-operation CNC parts, for precision-critical applications. Now operating across three generations, the company combines traditional cam-driven equipment with Swiss CNC machining and coordinates inspection and inventory services for customers in fields such as medical and aerospace manufacturing. Its quality system has been ISO 9001:2015 registered since 1999.PITTSFORD, NY
Cosmo OpticsFounded in 1957 by German optician Hans Peters, Albany-based Cosmo Optics fabricates custom precision optical components and assemblies, from prototype work through production. In its 22,000-square-foot facility, the privately held company makes optics ranging from 1.5 mm parts to elements exceeding 40 inches, with in-house coating and inspection capabilities. Master Opticians and technicians bring decades of experience to work that the company describes as artisan optical fabrication.ALBANY, NY
INSACO IncSince 1947, Quakertown-based INSACO has precision-machined and polished technical ceramics, sapphire, glass, and quartz for demanding applications. Founded as Industrial Sapphire Specialties making phonograph needles, the company later produced sapphire cover plates for the first Telstar satellite and now works from a plant spanning more than 50,000 square feet. INSACO measures and documents parts to tolerances sometimes reaching millionths of an inch, with experience ranging from prototypes to automated production.QUAKERTOWN, PA
Grieshaber PrecisionFounded in 1903 as a Black Forest craft business, family-owned Grieshaber Precision makes high-precision turned parts for demanding products in sectors such as automotive, sensor and medical technology. From its Schiltach base, the company now employs about 300 people and produces more than 120 million precision parts across a production area exceeding 10,000 square metres. Its combination of in-house tool and fixture construction, prototype capacity and scalable production lets Grieshaber support customers from initial development through large-scale manufacturing.CINCINNATI, OH