| AGAnchor Glass Container Corporation | Lawrenceburg | 100–499 | ● ACTIVE |
| KIKnauf Insulation Gmbh | Shelbyville | 100–499 | ● ACTIVE |
| OBOwens Brockway Glass Container INC | Lapel | 100–499 | ● ACTIVE |
10x Engineered Materials LLC | Wabash | — | ● ACTIVE |
Linde Advanced Material Technologies INC. | Indianapolis | 100–499 | ● ACTIVE |
Mofab INC | Anderson | — | ● ACTIVE |
| OWOpta Walkerton | Walkerton | 20–99 | ● ACTIVE |
| RMReed Minerals, LLC | Gary | 1–19 | ● ACTIVE |
| ACArt Crystal Ii Enterprises, INC. | Griffith | — | ● ACTIVE |
Fit Tight Covers Company, INC. | Evansville | — | ● ACTIVE |
Jones & Sons INC | Washington | — | ● ACTIVE |
Maxi-blast INC | South Bend | — | ● ACTIVE |
Nutek Industries, LLC | Fort Wayne | — | ● ACTIVE |
| SGShelby Gravel INC | Shelbyville | — | ● ACTIVE |
S & S Optical CO INC | New Haven | — | ● ACTIVE |
| DWD & W, INC | Elkhart | 20–99 | ◐ LIKELY ACTIVE |
| IPIntat Precision INC | Rushville | 100–499 | ◐ LIKELY ACTIVE |
| IIIsolatek International | Huntington | 20–99 | ◐ LIKELY ACTIVE |
| AGAnchor Glass Container Corporation | Winchester | — | ◐ LIKELY ACTIVE |
| ALArcosa Lw Hpb LLC | Mooresville | — | ◐ LIKELY ACTIVE |
| BBBrampton Brick | Farmersburg | — | ◐ LIKELY ACTIVE |
| CLCarmeuse Lime Buffington | Gary | — | ◐ LIKELY ACTIVE |
| CMContinental Mirrored Graphics INC | Elkhart | 20–99 | ◐ LIKELY ACTIVE |
| CSCoreslab Structures INC | Indianapolis | 100–499 | ◐ LIKELY ACTIVE |
| GBGold Bond - Sho Plant | Shoals | — | ◐ LIKELY ACTIVE |
| GWGreencastle Wdf Facility - Buzzi Unicem USA | Greencastle | — | ◐ LIKELY ACTIVE |
| ILIndiana Limestone Fabricators | Spencer | 20–99 | ◐ LIKELY ACTIVE |
| LCLehigh Cement CO LLC | Mitchell | — | ◐ LIKELY ACTIVE |
| MBMeridian Brick LLC | Terre Haute | — | ◐ LIKELY ACTIVE |
| OKOpta- Kingsbury | Kingsbury | 1–19 | ◐ LIKELY ACTIVE |
| PBPermabase Building Products, LLC | Clinton | 20–99 | ◐ LIKELY ACTIVE |
| RPResco Products INC | Hammond | — | ◐ LIKELY ACTIVE |
| SDSteel Dynamics INC - Engineered Bar Products Div | Pittsboro | — | ◐ LIKELY ACTIVE |
| UCUnifrax Corporation | New Carlisle | — | ◐ LIKELY ACTIVE |
| UIUni-ref Incorporated | Brookville | — | ◐ LIKELY ACTIVE |
United States Gypsum Company | Shoals | — | ◐ LIKELY ACTIVE |
| HMHeidelberg- Materials US Cement LLC - Speed | Speed | — | ◐ LIKELY ACTIVE |
Johns Manville, INC. | Richmond | — | ◐ LIKELY ACTIVE |
| NRNipsco Rm Schahfer Peaker Plant | Wheatfield | — | ◐ LIKELY ACTIVE |
| PSPhoenix Services LLC Dba Metal Services | East Chicago | — | ◐ LIKELY ACTIVE |
| PFProform Finishing Products, LLC | Rensselaer | — | ◐ LIKELY ACTIVE |
| NNNew Ngc INC. D/b/a National Gypsum Compa | Clinton | — | ◇ UNVERIFIED |
| NNorthfield-indianapolis | Indianapolis | — | ◇ UNVERIFIED |
| OBOzinga Brothers Ready Mix Concrete | Crown Point | — | ◇ UNVERIFIED |
| TMThermafiber Manufacturing Plant | Wabash | — | ◇ UNVERIFIED |
| 3S3D Stone | Bloomington | 20–99 | ◐ LIKELY ACTIVE |
| ARAdvance Ready Mix Concrete, Inc Plant 6 | Jeffersonville | 1–19 | ◐ LIKELY ACTIVE |
| ACAia Countertops | Syracuse | 100–499 | ◐ LIKELY ACTIVE |
| AGArdagh Glass Winchester | Winchester | 100–499 | ◐ LIKELY ACTIVE |
| BSBeemsterboer Slag CORP Contractor of Ar | East Chicago | — | ◐ LIKELY ACTIVE |