| RRollpack | Goshen | IN | Plastics and Rubber Products Manufacturing326111 | 100-499 | ◐ LIKELY ACTIVE |
| RRRolls Royce: Victory/TC/OSB | Indianapolis | IN | Transportation Equipment Manufacturing336412 | 100-499 | ◐ LIKELY ACTIVE |
| RRubbermaid-Fisheres | Fishers | IN | Fabricated Metal Product Manufacturing332119 | 100-499 | ◐ LIKELY ACTIVE |
| SSSamtec Scottsburg | Scottsburg | IN | Computer and Electronic Product Manufacturing334417 | 100-499 | ◐ LIKELY ACTIVE |
SCHOTT North America, Home Tech | Vincennes | IN | Nonmetallic Mineral Product Manufacturing327215 | 100-499 | ◐ LIKELY ACTIVE |
| SLSCP Limited Holdings LLC | Fort Wayne | IN | Computer and Electronic Product Manufacturing334512 | 100-499 | ◐ LIKELY ACTIVE |
| SLSDI LaFarga Copperworks, LLC. | New Haven | IN | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
| SSeelyville | Terre Haute | IN | Food Manufacturing311821 | 100-499 | ◐ LIKELY ACTIVE |
| SWSEL West Lafayette IN | West Lafayette | IN | Electrical Equipment, Appliance & Component Manufacturing335314 | 100-499 | ◐ LIKELY ACTIVE |
| SLServices Lafayette Engine Facility | Lafayette | IN | Transportation Equipment Manufacturing336412 | 100-499 | ◐ LIKELY ACTIVE |
| SFShearer's Foods - Bluffton | Bluffton | IN | Food Manufacturing311919 | 100-499 | ◐ LIKELY ACTIVE |
| SIShiloh Industries LLC Goshen | Goshen | IN | Transportation Equipment Manufacturing336370 | 100-499 | ▲ REPORTED CLOSED |
| SPSilgan Plastics | Seymour | IN | Plastics and Rubber Products Manufacturing326160 | 100-499 | ◐ LIKELY ACTIVE |
| SFSkjodt-Barrett Foods | Lebanon | IN | Food Manufacturing311422 | 100-499 | ◐ LIKELY ACTIVE |
| SBSouth Bend Manufacturing Plant | South Bend | IN | Fabricated Metal Product Manufacturing332111 | 100-499 | ◐ LIKELY ACTIVE |
| SMSouthwark Metal Indianapolis Division | Mccordsville | IN | Fabricated Metal Product Manufacturing332322 | 100-499 | ◐ LIKELY ACTIVE |
| SWSouthwest Welding LLC | Wakarusa | IN | Fabricated Metal Product Manufacturing332999 | 100-499 | ◐ LIKELY ACTIVE |
| SLSpartech LLC | Muncie | IN | Plastics and Rubber Products Manufacturing326112 | 100-499 | ▲ REPORTED CLOSED |
| SISRAM Indianapolis | Indianapolis | IN | Transportation Equipment Manufacturing336991 | 100-499 | ◐ LIKELY ACTIVE |
| SAStanley Access Technologies MTC | Greenfield | IN | Fabricated Metal Product Manufacturing332321 | 100-499 | ◐ LIKELY ACTIVE |
| SEStanley Engineered Fastening | Montpelier | IN | Fabricated Metal Product Manufacturing332722 | 100-499 | ◐ LIKELY ACTIVE |
| SWStatewide Windows | Elkhart | IN | Transportation Equipment Manufacturing336214 | 100-499 | ◐ LIKELY ACTIVE |
| SDSteel Dynamics, Inc. - Flat Roll Group - Jeffersonville | Jeffersonville | IN | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| SMSteel Mart LLC | Elwood | IN | Fabricated Metal Product Manufacturing332999 | 100-499 | ◐ LIKELY ACTIVE |
| SESunCoke Energy Indiana Harbor Operation | East Chicago | IN | Petroleum and Coal Products Manufacturing324199 | 100-499 | ◐ LIKELY ACTIVE |
| SESuperior Essex | Fort Wayne | IN | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
| SMSuperior Metals | Indianapolis | IN | Fabricated Metal Product Manufacturing332811 | 100-499 | ◐ LIKELY ACTIVE |
| SPSwift Prepared Foods Elkhart | Elkhart | IN | Food Manufacturing311612 | 100-499 | ◐ LIKELY ACTIVE |
| TATate and Lyle Ingredients | Lafayette | IN | Food Manufacturing311221 | 100-499 | ◐ LIKELY ACTIVE |
| TCTaylor Comms - Jeffersonville IN - 0116-INJE1 | Jeffersonville | IN | Printing and Related Support Activities323111 | 100-499 | ◐ LIKELY ACTIVE |
| TCTelamon Corporation - Whitestown | Whitestown | IN | Computer and Electronic Product Manufacturing334210 | 100-499 | ◐ LIKELY ACTIVE |
| TTenneco | Angola, Indiana | IN | Plastics and Rubber Products Manufacturing326291 | 100-499 | ◐ LIKELY ACTIVE |
| TFTenneco Frankfort | Frankfort | IN | Miscellaneous Manufacturing339991 | 100-499 | ◐ LIKELY ACTIVE |
| TCTFC Canopy | Garrett | IN | Fabricated Metal Product Manufacturing332322 | 100-499 | ◐ LIKELY ACTIVE |
The New York Blower Company - La Porte | La Porte | IN | Machinery Manufacturing333413 | 100-499 | ◐ LIKELY ACTIVE |
| TSThermal Structures - Midwest Division | Plainfield | IN | Transportation Equipment Manufacturing336390 | 100-499 | ◐ LIKELY ACTIVE |
Thermo Bond Buildings - Elkhart | Elkhart | IN | Wood Product Manufacturing321992 | 100-499 | ◐ LIKELY ACTIVE |
| TPthyssenkrupp Presta NA | Terre Haute | IN | Transportation Equipment Manufacturing336330 | 100-499 | ◐ LIKELY ACTIVE |
| TATI Automotive Ashley, IN | Ashley | IN | Fabricated Metal Product Manufacturing332996 | 100-499 | ◐ LIKELY ACTIVE |
| TPTicona Polymers, Inc. | Evansville | IN | Chemical Manufacturing325991 | 100-499 | ◐ LIKELY ACTIVE |
| TFTI Fluid System - Ossian | Ossian | IN | Transportation Equipment Manufacturing336390 | 100-499 | ◐ LIKELY ACTIVE |
| TATower Automotive Operations USA I, LLC - Auburn | Auburn | IN | Transportation Equipment Manufacturing336370 | 100-499 | ◐ LIKELY ACTIVE |
| TSTRG Seymour | Seymour | IN | Paper Manufacturing322211 | 100-499 | ◐ LIKELY ACTIVE |
| TTruPack | Evansville | IN | Food Manufacturing311991 | 100-499 | ◐ LIKELY ACTIVE |
| TST & S Equipment | Angola | IN | Fabricated Metal Product Manufacturing332999 | 100-499 | ◐ LIKELY ACTIVE |
| UFUniversal Forest Products | Granger | IN | Wood Product Manufacturing321999 | 100-499 | ◐ LIKELY ACTIVE |
| UGUS Gypsum East Chicago | East Chicago | IN | Nonmetallic Mineral Product Manufacturing327420 | 100-499 | ◐ LIKELY ACTIVE |
| VFVahala Foam Elkhart | Elkhart | IN | Plastics and Rubber Products Manufacturing326150 | 100-499 | ◐ LIKELY ACTIVE |
| VGValeo Greensburg | Greensburg | IN | Transportation Equipment Manufacturing336390 | 100-499 | ◐ LIKELY ACTIVE |
| VMVanair Manufacturing Company LLC - South | Michigan City | IN | Machinery Manufacturing333912 | 100-499 | ◐ LIKELY ACTIVE |