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Thieman Quality Metal Fab, Inc. | New Bremen, OH (419) 629-2612Thieman Quality Metal Fab Inc.


Thieman is a midwest manufacturer of metal fabricated parts, providing the highest quality and service to our customers. With over 60 years of experience, we are an ISO 9001:2015 certified and a WBE certified company offering a complete line of metal fabricating processes, experience & innovation to meet your needs.

Thieman Engineering


Thieman Engineering uses Solid Edge and AutoCAD software to create parts and assemblies from customer supplied prints, 3D Models, and CAD files. With our engineering capabilities we are able to service our customers with a wide variety of manufacturing services and metal products.

Thieman Manufacturing


With our cutting edge manufacturing equipment, Thieman is able to produce and ship the high quality manufactured product our customer demands. From 24 gauge material to 1″ material, we can handle your fabrication needs.

Thieman Welding


With MIG, TIG, Robotic and Spot welding capabilities, we are well equipped to meet your welding needs. Our welders are certified to AWS D1.1 and we have extensive knowledge and experience in using peg tables to produce the more challenging parts.