| RRRiver Recycling Industries INC | Cleveland | — | ◇ UNVERIFIED |
| RTRmi Titanium CO - Plant 2 | Ashtabula | — | ◇ UNVERIFIED |
| RTRmi Titanium CO. Sodium Plant | Ashtabula | — | ◇ UNVERIFIED |
| RARoss Aluminum Foundries Avon Div | Sidney | — | ◇ UNVERIFIED |
| RSRoss Sand Casting Industry, LLC | Orrville | — | ◇ UNVERIFIED |
| SSSamuel Steel Pickling CO * | Cleveland | — | ◇ UNVERIFIED |
| SEScott Engineering and Procurement, INC. (1431004456) | Loveland | — | ◇ UNVERIFIED |
| SPSenco Products INC | Anderson | — | ◇ UNVERIFIED |
| SWSeneca Wire & Mfg CO * | Fostoria | — | ◇ UNVERIFIED |
| SSSewah Studios | Marietta | — | ◇ UNVERIFIED |
| SWShelby Welded Tube | Shelby | — | ◇ UNVERIFIED |
| SVSherwood Valve LLC | Cleveland | — | ◇ UNVERIFIED |
| SDSkrl Die Casting INC | Eastlake | — | ◇ UNVERIFIED |
| SEStatoil - Eisenbarth Pad | Clarington | — | ◇ UNVERIFIED |
| STSteel Technologies LLC | Willoughby | — | ◇ UNVERIFIED |
| STSteel Technologies LLC | Ottawa | — | ◇ UNVERIFIED |
| TFT&b Foundry Company | Cleveland | — | ◇ UNVERIFIED |
| TGTde Group INC (1318536280) | Solon | — | ◇ UNVERIFIED |
| TAThakar Aluminum | Sandusky | — | ◇ UNVERIFIED |
| TBThe Blanchester Foundry CO | Blanchester | — | ◇ UNVERIFIED |
| TCThe C.a. Lawton CO. | Minster | — | ◇ UNVERIFIED |
| TGThe G a Avril Company Brass & Bronze Division | Cincinnati | — | ◇ UNVERIFIED |
| TGThe General Casting Company - Toledo Street | Delaware | — | ◇ UNVERIFIED |
| TLThe Linderme Tube Company | Euclid | — | ◇ UNVERIFIED |
| TAThompson Aluminum Casting CO | Cuyahoga Heights | — | ◇ UNVERIFIED |
| TCTimkensteel CORP - Faircrest Steel Plant | Canton | — | ◇ UNVERIFIED |
| TITms International, LLC | Youngstown | — | ◇ UNVERIFIED |
| UMUltra-met Mfg. CO. | Urbana | — | ◇ UNVERIFIED |
| UAUnico Alloys INC | Columbus | — | ◇ UNVERIFIED |
| UCUS Casting | Canton | — | ◇ UNVERIFIED |
| VWVictory White Metal | Cleveland | — | ◇ UNVERIFIED |
| WAWabash Alloys | Cleveland | — | ◇ UNVERIFIED |
| WTWelded Tubes INC | Orwell | — | ◇ UNVERIFIED |
| WTWheatland Tube CO Niles Plant | Niles | — | ◇ UNVERIFIED |
| WIWillard Industries INC | Cincinnati | — | ◇ UNVERIFIED |
| WPWm. Powell Valve CO. | Cincinnati | — | ◇ UNVERIFIED |
| WIWorthington Industries (formerly Heidtman Steel Products) | Cleveland | — | ◇ UNVERIFIED |
| XFXenia Foundry | Xenia | — | ◇ UNVERIFIED |
| YIYoder Industries INC | Dayton | — | ◇ UNVERIFIED |
| HC"4304 - Holiday City Steel Plant" | Holiday City | 20–99 | ◐ LIKELY ACTIVE |
| ALAerolite LLC | Youngstown | 100–499 | ◐ LIKELY ACTIVE |
| AIAlcon Industries, INC. | Cleveland | — | ◐ LIKELY ACTIVE |
| AUAlloy Unlimited Processing LLC | Austintown | 1–19 | ◐ LIKELY ACTIVE |
| AEAluminum Extruded Shapes | Cincinnati | 20–99 | ◐ LIKELY ACTIVE |
| AAAmerican Axle & Manufacturing | Twinsburg | 100–499 | ◐ LIKELY ACTIVE |
| AHAmerican Heavy Plates | Clarington | 100–499 | ◐ LIKELY ACTIVE |
| APARI Phoenix Inc | Sharonville | 20–99 | ◐ LIKELY ACTIVE |
| ASAstro Shapes LLC | Struthers | 500+ | ◐ LIKELY ACTIVE |
| BPBar Processing Corp | Wickliife | 20–99 | ◐ LIKELY ACTIVE |
| BOBekaert Orrville | Orrville | 100–499 | ◐ LIKELY ACTIVE |
