| TSTaylor Specialties, LLC | New Middletown, OH | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| TSTeam Steel Fabricators LLC | Youngstown, OH | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| TDTherm-o-link Dba Vulkor INC. | Warren, OH | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| TPTimber Products INC | West Farmington, OH | Wood Product Manufacturing321211 | — | ◇ UNVERIFIED |
| TSTipper Services, Inc. | Youngstown, OH | Machinery Manufacturing333618 | — | ◇ UNVERIFIED |
| TITmk Ipsco | Brookfield, OH | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| TETrimbur Enterprises LLC | Warren, OH | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
| UFUnited Foundries INC | Youngstown, OH | Machinery Manufacturing333516 | — | ◇ UNVERIFIED |
 Universal Stainless & Alloy Products INC. | North Jackson, OH | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| VVallourec | Youngstown, OH | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| VWVista Window Company, LLC | Warren, OH | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| WSWarren Steel Holdings, LLC (0278080015) | Warren, OH | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| YPYoungstown Pipe & Supply, LLC | Campbell, OH | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| YSYoungstown Specialty Metls INC | Youngstown, OH | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| YIYsd Industries, INC. (0250110314) | Austintown, OH | Machinery Manufacturing333914 | — | ◇ UNVERIFIED |
