| ICIce Cream Specialties, INC | Lafayette | IN | Food Manufacturing311520 | 100-499 | ◐ LIKELY ACTIVE |
| ICId Castings LLC | Noblesville | IN | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| IFIdi Fabrication, INC | Noblesville | IN | Electrical Equipment, Appliance & Component Manufacturing335999 | 20-99 | ◐ LIKELY ACTIVE |
| IDIndiana Dimension, Inc. | Logansport | IN | Wood Product Manufacturing321999 | 100-499 | ◐ LIKELY ACTIVE |
| ITIndiana Tube CORP | Evansville | IN | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| IIIN-FAB Inc. | Bedford | IN | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
| ITIntegrity Tool INC | Batesville | IN | Machinery Manufacturing333514 | — | ◐ LIKELY ACTIVE |
| IPInternational Paper | Cayuga | IN | Paper Manufacturing322130 | — | ◐ LIKELY ACTIVE |
| IPInternational Paper Midwest Sheets | Tipton | IN | Paper Manufacturing322211 | 20-99 | ◐ LIKELY ACTIVE |
| JPJamil Packaging Corp | Mishawaka | IN | Paper Manufacturing322212 | 100-499 | ◐ LIKELY ACTIVE |
Jasper Seating Co., Inc., Plant 70 | Jasper | IN | Furniture and Related Product Manufacturing337211 | 100-499 | ◐ LIKELY ACTIVE |
| JMJC Moag Corporation | Georgetown | IN | Furniture and Related Product Manufacturing337212 | 20-99 | ◐ LIKELY ACTIVE |
| JEJMS Engineered Plastics | South Bend | IN | Transportation Equipment Manufacturing336390 | 20-99 | ◐ LIKELY ACTIVE |
Johns Manville, INC. | Richmond | IN | Nonmetallic Mineral Product Manufacturing327993 | — | ◐ LIKELY ACTIVE |
| JCJupiter Coil Coating Division | Fairland | IN | Primary Metal Manufacturing331315 | — | ◐ LIKELY ACTIVE |
| KIKeihin Ipt Mfg., LLC | Greenfield | IN | Transportation Equipment Manufacturing336310 | — | ◐ LIKELY ACTIVE |
| KIKnauf Insulation Incorporated | Shelbyville | IN | Nonmetallic Mineral Product Manufacturing327993 | 500+ | ◐ LIKELY ACTIVE |
| KWKountry Wood Products LLC | Nappanee | IN | Wood Product Manufacturing321999 | — | ◐ LIKELY ACTIVE |
| LQLafayette Quality Products, INC. | Lafayette | IN | Fabricated Metal Product Manufacturing332710 | 1-19 | ◐ LIKELY ACTIVE |
| LHLear Hammond | Hammond | IN | Transportation Equipment Manufacturing336360 | 500+ | ◐ LIKELY ACTIVE |
| LCLehigh Cement CO LLC | Mitchell | IN | Nonmetallic Mineral Product Manufacturing327310 | — | ◐ LIKELY ACTIVE |
| LSLenex Steel - Corporate | Indianapolis | IN | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
Liberty Industries Investments, LLC | Fillmore | IN | Transportation Equipment Manufacturing336212 | 20-99 | ◐ LIKELY ACTIVE |
| LILinacast Incorporated Linamar Light Metals Pierceton | Pierceton | IN | Primary Metal Manufacturing331521 | — | ◐ LIKELY ACTIVE |
| LMLincoln Manufacturing CO. | Fort Wayne | IN | Fabricated Metal Product Manufacturing332116 | — | ◐ LIKELY ACTIVE |
| LWLinde - Whiting, in 5&6 | East Chicago | IN | Chemical Manufacturing325120 | — | ◐ LIKELY ACTIVE |
| LPLionshead Precision Metals | Greenwood | IN | Fabricated Metal Product Manufacturing332322 | 20-99 | ◐ LIKELY ACTIVE |
Lippert Components INC | Elkhart | IN | Fabricated Metal Product Manufacturing332321 | — | ◐ LIKELY ACTIVE |
Lippert Components Incorporated Plant 4 | Goshen | IN | Fabricated Metal Product Manufacturing332119 | 100-499 | ◐ LIKELY ACTIVE |
| LELiving Essentials | Wabash | IN | Chemical Manufacturing325412 | 100-499 | ◐ LIKELY ACTIVE |
| LCLord Corporation | Indianapolis | IN | Chemical Manufacturing325520 | — | ◐ LIKELY ACTIVE |
| LDLouis Dreyfus Agricultural Industries,llc | Claypool | IN | Food Manufacturing311222 | — | ◐ LIKELY ACTIVE |
| LALyondellbasell Advanced Polymers, INC. | Evansville | IN | Chemical Manufacturing325991 | — | ◐ LIKELY ACTIVE |
| MUMaax US CORP | Plymouth | IN | Plastics and Rubber Products Manufacturing326191 | — | ◐ LIKELY ACTIVE |
| MPMagna Powertrain East | Muncie | IN | Transportation Equipment Manufacturing336350 | 20-99 | ◐ LIKELY ACTIVE |
| MTManchester Tool and Die, INC | North Manchester | IN | Machinery Manufacturing333514 | 20-99 | ◐ LIKELY ACTIVE |
| MCMasterbrand Cabinets | Huntingburg | IN | Furniture and Related Product Manufacturing337110 | 100-499 | ◐ LIKELY ACTIVE |
| MIMastercraft Inc | Lagrange | IN | Furniture and Related Product Manufacturing337211 | 100-499 | ◐ LIKELY ACTIVE |
| MCMasterguard Corporation | Veedersburg | IN | Transportation Equipment Manufacturing336211 | — | ◐ LIKELY ACTIVE |
| MLMatalco LLC - Bluffton | Bluffton | IN | Primary Metal Manufacturing331314 | — | ◐ LIKELY ACTIVE |
| MAMatthews Aurora LLC | Aurora | IN | Miscellaneous Manufacturing339995 | — | ◐ LIKELY ACTIVE |
| MCMaxon CORP | Muncie | IN | Machinery Manufacturing333414 | — | ◐ LIKELY ACTIVE |
Maya Coffee Company LLC | Whiting | IN | Food Manufacturing311920 | — | ◐ LIKELY ACTIVE |
| MFMbci Ferdinand Plt | Ferdinand | IN | Furniture and Related Product Manufacturing337110 | — | ◐ LIKELY ACTIVE |
| MMMcgill Manufacturing Co, INC | Monticello | IN | Fabricated Metal Product Manufacturing332991 | — | ◐ LIKELY ACTIVE |
| MJMead Johnson & Company, LLC | Evansville | IN | Food Manufacturing311511 | — | ◐ LIKELY ACTIVE |
| MBMeridian Brick LLC | Terre Haute | IN | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
Mesco Manufacturing Group LLC | Greensburg | IN | Fabricated Metal Product Manufacturing332721 | 20-99 | ◐ LIKELY ACTIVE |
| MAMetals and Additives | Brazil | IN | Chemical Manufacturing325180 | 100-499 | ◐ LIKELY ACTIVE |
| MSMetal Source, LLC (GHR07) | Huntington | IN | Primary Metal Manufacturing331314 | 20-99 | ◐ LIKELY ACTIVE |