Founded in 1966 as a small Willoughby machine shop, Sutterlin Machine & Tool Co. designs and builds automated machinery while providing precision machining and complete in-house engineering, fabrication, and assembly. Now based in Mentor, the third-generation, U.S.-owned company operates an approximately 11,000-square-foot plant with 24 employees and more than 50 years of machine-building experience. Its work has grown from serving local hydraulic and steel mill customers to supporting aerospace, medical, OEM, and other specialized manufacturers.
MIL-STD 45662 calibration
Compliance program
S.T. Tool & Design IncFamily-owned since its founding in 1994, S.T. Tool & Design has built its reputation in Mentor, Ohio, on careful workmanship and lasting customer relationships. The company operates from a 17,000-square-foot facility, where its team produces precision-machined parts for businesses with complex manufacturing needs.MENTOR, OH
Steven Douglas CorpFounded in 1998, Steven Douglas Corp. designs, engineers, and builds custom automation machines for manufacturers from its headquarters in Concord, Ohio. SDC handles projects in-house from engineering and assembly through testing, installation, and ongoing support, with particular depth in micron-level automation and specialized systems such as automated wire-harness equipment. The company has built more than 1,500 machines and operates a 69,000-square-foot temperature-controlled facility alongside a 16,000-square-foot engineering office.CONCORD, OH
Swanson-Erie CorporationSince Oscar Swanson founded a precision tool-and-die shop in Erie in 1919, Swanson-Erie Corporation has grown into a builder of automatic assembly, processing and inspection machinery. The fourth generation of private, closely held ownership now combines a century of machine-design experience with modular platforms and robotic systems, including its Agilemation™ hybrid approach. Swanson machines have been installed in more than 40 countries and support manufacturers across more than 30 industries.ERIE, PA
SJK MachineSJK Machine is an Ohio machining and custom manufacturing company that designs and builds precision parts, automated machines, fabrications, and prototypes. Founded in 1998 in a garage with one manual mill, it now operates from a 30,000-square-foot facility near Minerva and serves customers nationwide. The company works with customers from product design and prototyping through production, combining engineering and manufacturing under one roof.MINERVA, OH