| TCTherma-tru CORP. - Butler | Butler | IN | Wood Product Manufacturing321911 | — | ◐ LIKELY ACTIVE |
| TCThrush Co Inc | Peru | IN | Machinery Manufacturing333911 | 20-99 | ◐ LIKELY ACTIVE |
| TITomasco Indiana, LLC | Winchester | IN | Transportation Equipment Manufacturing336211 | — | ◐ LIKELY ACTIVE |
| TPToppan Packaging, USA INC. | Edinburgh | IN | Printing and Related Support Activities323111 | — | ◐ LIKELY ACTIVE |
| TBToyota Boshoku Indiana LLC | Princeton | IN | Transportation Equipment Manufacturing336360 | 500+ | ◐ LIKELY ACTIVE |
Trinity Displays LLC | Chesterton | IN | Printing and Related Support Activities323111 | 1-19 | ◐ LIKELY ACTIVE |
| TITri-State Industries, Inc. - Indiana | Hammond | IN | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
| TMTriton Metal Products | Hamilton | IN | Fabricated Metal Product Manufacturing332313 | 100-499 | ◐ LIKELY ACTIVE |
| TTTrivalence Technologies | Evansville | IN | Chemical Manufacturing325991 | 20-99 | ◐ LIKELY ACTIVE |
Trout Dental Laboratory LLC | Fillmore | IN | Miscellaneous Manufacturing339116 | — | ◐ LIKELY ACTIVE |
| TUTsuda USA Corporation | Greenfield | IN | Transportation Equipment Manufacturing336312 | 100-499 | ◐ LIKELY ACTIVE |
| TFTyson Fresh Meats INC | Logansport | IN | Food Manufacturing311611 | — | ◐ LIKELY ACTIVE |
| UKU.B. Klem Furniture Company | Saint Anthony | IN | Furniture and Related Product Manufacturing337127 | 20-99 | ◐ LIKELY ACTIVE |
| UNUfp Nappanee, LLC Dba Quality Hardwood | Nappanee | IN | Wood Product Manufacturing321999 | — | ◐ LIKELY ACTIVE |
Undersea Sensor Systems, INC. | Columbia City | IN | Computer and Electronic Product Manufacturing334511 | 500+ | ◐ LIKELY ACTIVE |
| UCUnifrax Corporation | New Carlisle | IN | Nonmetallic Mineral Product Manufacturing327993 | — | ◐ LIKELY ACTIVE |
| UEUnion Electric Steel Corporation | Valparaiso | IN | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| UPUnited Petfood Producers USA Incorporated | Mishawaka | IN | Food Manufacturing311111 | 100-499 | ◐ LIKELY ACTIVE |
United States Gypsum Company | Shoals | IN | Nonmetallic Mineral Product Manufacturing327420 | — | ◐ LIKELY ACTIVE |
| UBUS Bath Group LLC Dba Mpl Company | Fairland | IN | Plastics and Rubber Products Manufacturing326191 | — | ◐ LIKELY ACTIVE |
| VLValeo Lighting Systems NA LLC | Seymour | IN | Electrical Equipment, Appliance & Component Manufacturing335110 | — | ◐ LIKELY ACTIVE |
| VBValero Bluffton Plant | Bluffton | IN | Food Manufacturing311119 | — | ◐ LIKELY ACTIVE |
| VRVal Rollers Incorporated | Indianapolis | IN | Fabricated Metal Product Manufacturing332710 | 1-19 | ◐ LIKELY ACTIVE |
| VMVanair Manufacturing INC | Michigan City | IN | Machinery Manufacturing333912 | 100-499 | ◐ LIKELY ACTIVE |
| VEVee Engineering INC | Anderson | IN | Plastics and Rubber Products Manufacturing326199 | — | ◐ LIKELY ACTIVE |
| VAVentra Angola LLC | Angola | IN | Plastics and Rubber Products Manufacturing326199 | 20-99 | ◐ LIKELY ACTIVE |
| VIVidimos Inc | East Chicago | IN | Fabricated Metal Product Manufacturing332322 | 20-99 | ◐ LIKELY ACTIVE |
| VCVivolac Cultures Corporation | Greenfield | IN | Food Manufacturing311999 | 20-99 | ◐ LIKELY ACTIVE |
| VAVOSS Automotive, Inc. | Fort Wayne | IN | Fabricated Metal Product Manufacturing332912 | 100-499 | ◐ LIKELY ACTIVE |
| VOVuteq Operations Support Center | Princeton | IN | Transportation Equipment Manufacturing336112 | 20-99 | ◐ LIKELY ACTIVE |
Wabash National L P East Plant | Lafayette | IN | Transportation Equipment Manufacturing336212 | — | ◐ LIKELY ACTIVE |
| WSWabash Steel Company LLC | Vincennes | IN | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| WIWare Industries, INC. D/b/a Marino/ware | East Chicago | IN | Fabricated Metal Product Manufacturing332312 | 100-499 | ◐ LIKELY ACTIVE |
| WAWawasee Aluminum Works | Syracuse | IN | Transportation Equipment Manufacturing336612 | — | ◐ LIKELY ACTIVE |
| WIWeb Industries Fort Wayne | Fort Wayne | IN | Textile Mills313310 | 100-499 | ◐ LIKELY ACTIVE |
| WMWeil Mclain a United Dominion Company | Michigan City | IN | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| WMWenzel Metal Spinning, INC. | Fremont | IN | Fabricated Metal Product Manufacturing332119 | 20-99 | ◐ LIKELY ACTIVE |
| WMWhallon Machinery Inc. | Royal Center | IN | Machinery Manufacturing333993 | 20-99 | ◐ LIKELY ACTIVE |
| WRWhite River Soy Processing LLC | Seymour | IN | Food Manufacturing311224 | — | ◐ LIKELY ACTIVE |
| WPWick's Pies, Inc. | Winchester | IN | Food Manufacturing311813 | 20-99 | ◐ LIKELY ACTIVE |
| WMWiley Metal Fabricating INC | Marion | IN | Fabricated Metal Product Manufacturing332322 | — | ◐ LIKELY ACTIVE |
| WIWilloughby Industries | Indianapolis | IN | Plastics and Rubber Products Manufacturing326191 | 100-499 | ◐ LIKELY ACTIVE |
| WLW-m Lumber and Wood Products In. | New Albany | IN | Wood Product Manufacturing321920 | 1-19 | ◐ LIKELY ACTIVE |
| WAWorld Arts Incorporated | Spencer | IN | Printing and Related Support Activities323111 | 20-99 | ◐ LIKELY ACTIVE |
| ZBZimmer Biomet Incorporated Plant 3 | Warsaw | IN | Miscellaneous Manufacturing339113 | 500+ | ◐ LIKELY ACTIVE |
| 1B104969 - Berry Plastics Corporation | Evansville | IN | Plastics and Rubber Products Manufacturing326160 | 500+ | ◐ LIKELY ACTIVE |
| 1N105860 - Niagara Lasalle Corporation | Hammond | IN | Primary Metal Manufacturing331221 | 1-19 | ◐ LIKELY ACTIVE |
| 1P106566 - Prime Conveyor INC | Merrillville | IN | Machinery Manufacturing333922 | 20-99 | ◐ LIKELY ACTIVE |
| 1J107853 - Jackel INC. | Mishawaka | IN | Plastics and Rubber Products Manufacturing326191 | 20-99 | ◐ LIKELY ACTIVE |
| 3H3m - Hartford City | Hartford City | IN | Paper Manufacturing322220 | — | ◐ LIKELY ACTIVE |