- Bell Foundry Co
- Bell Foundry Co
- Berlin Castings Inc
- Blanchester Foundry Co
- Brent & Sam's Cookies Inc
- Brent A Petrosky
- Brent Barnhart Machine Shop
- Brent Bernstein DPM
- Brent D Strock DDS
- Brent E Bernd
- Brent E Robinson
- Brent Fisher & Assoc
- Brillion Iron Works Inc
- Burnham Foundry
- Col-Pump Co Inc
- E C Prior & Co
- East Jordan Iron Works
- East Jordan Iron Works
- G & C Foundry Co
- H K Casting Inc
- Hern Iron Works
- Kiel Foundry Co
- Knapp Foundry Co
- Lane Casting Co
- Neenah Foundry Co
- Newton Co
- O S Kelly Co
- Oak Hill Foundry & Machine
- Osco Industries
- Osco Industries Inc
- Osco Industries Inc
- Piqua Champion Foundry Inc
- Quality Castings
- Richland Center Foundry Co
- Sinel Co
- Slinger Manufacturing Co Inc
- Smith Foundry & Machine Co Inc
- St Marys Foundry Inc
- T & B Foundry Co
- Taylor's Iron & Metal
- Taylor's Iron & Metal
- Tiffin Foundry & Machine Inc
- Tri-Cast Inc
- U S Casting Co
- Wellsville Foundry Inc
- Willman Industries Inc
- Xenia Foundry & Machine Co
- Yellow Creek Casting Co
