- Advanced Green Components
- Ajax Manufacturing
- Ajax Rolled Rings
- Alcoa
- American Axle & Manufacturing- Detroit
- American Axle & Manufacturing- Tonawanda
- American Axle & Manufacturing- Guanajuarta, Mexico
- Ameri-Forge
- Bharat Forge
- Burke Forging
- Canada Forgings, Inc.
- Cardinal Fasteners
- Carolina Forge Company
- Caterpillar
- Centerline
- Consolidated Industries
- Coulter Steel
- Delphi
- Dorssers
- Dril-Quip
- EBAA Iron
- Ellwood National Crankshaft
- Firth Rixson Monroe
- Firth Rixson Schlosser Forge
| - Firth Rixson Viking Forge
- FRISA Forjados
- FRISA Aerospace
- Forja de Monterrey
- Galperti Forgings, USA
- Goodyear
- GKN Automotive, Inc.
- Gulf Coast Machine & Supply
- Hammond & Irving
- HHI - Formtech
- HHI - Jerneberg
- Hydrodynamic Technologies
- IMT- P.C. Drop Forgings
- INA USA
- International Crankshaft, Inc.
- Intertractor
- Iron Mountain
- Jorgensen
- Lemforder Corporation
- Liberty Forge
- Lisi
- Louisville Forge & Gear
- McInnes Rolled Rings
- Meadville Forge
- Meritor
| - Metform
- Midtown Forge
- Ohio Star Forge
- Patriot Forge
- Phoenix Hotform
- Ringmasters
- Roll Forming Corporation
- Rotek Incorporated
- Scot Forge
- SFS
- Sifco
- Southwest Steel Processing
- Specialty Ring Products
- Standard Steel
- Steel Industries
- Tekfor
- Timken
- UCAR Carbon Company
- Unytite, Inc.
- Viking Forge
- Virginia Forge Company
- Vulcan Steam Forging
- Westinghouse
- Weber Metals
- Wepuko/Panke Engineering
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