| UIUsg Interiors - Red Wing | Red Wing | MN | Nonmetallic Mineral Product Manufacturing327993 | 20-99 | ◐ LIKELY ACTIVE |
| UGUS Gypsum Sweetwater | Sweetwater | TX | Nonmetallic Mineral Product Manufacturing327420 | 100-499 | ◐ LIKELY ACTIVE |
W.a. Wilson & Sons, INC. | Wheeling | WV | Nonmetallic Mineral Product Manufacturing327211 | — | ◐ LIKELY ACTIVE |
| WBWestern Block Company | Phoenix | AZ | Nonmetallic Mineral Product Manufacturing327331 | — | ◐ LIKELY ACTIVE |
| MBMaterion Brush INC | Tucson | AZ | Nonmetallic Mineral Product Manufacturing327113 | — | ◐ LIKELY ACTIVE |
| WFWhitacre-greer Fireproofing CO | Alliance | OH | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| DCDauphinais Concrete, INC. | Douglas | MA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| 3C3m CO - Pittsboro | Moncure | NC | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| 3C3m CO - Wausau Downtown | Wausau | WI | Nonmetallic Mineral Product Manufacturing327990 | — | ◐ LIKELY ACTIVE |
| 3M3m (minnesota Mining & Mfg Co) - Ames | Ames | IA | Nonmetallic Mineral Product Manufacturing327910 | — | ◐ LIKELY ACTIVE |
| 3M3m Montrose | Montrose | CO | Nonmetallic Mineral Product Manufacturing327910 | 20-99 | ◐ LIKELY ACTIVE |
| 3W3m Wausau - Greystone Plant | Wausau | WI | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| A1A - 1 Block CORP | Orlando | FL | Nonmetallic Mineral Product Manufacturing327320 | 100-499 | ◐ LIKELY ACTIVE |
| AZAaa Zoellner Materials, INC. | Imperial | MO | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| AIAci Industries, LLC | Laurens | SC | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
Acker Stone Industries, INC | Corona | CA | Nonmetallic Mineral Product Manufacturing327331 | — | ◐ LIKELY ACTIVE |
| ABAcme Brick CO Perla | Malvern | AR | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| ABAcme Brick Co-san Felipe Plant | Sealy | TX | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| ATAcme Tulsa Faclty | Tulsa | OK | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| AAAdams an Oldcastle Co-charlotte | Charlotte | NC | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| AAAdams an Oldcastle Company - Morrisville | Morrisville | NC | Nonmetallic Mineral Product Manufacturing327331 | — | ◐ LIKELY ACTIVE |
| AFAdams Franklin | Franklin | NC | Nonmetallic Mineral Product Manufacturing327331 | 1-19 | ◐ LIKELY ACTIVE |
| APAdelanto Plant 19 | Adelanto | CA | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| AFAdvanced Fiber Technology | Bucyrus | OH | Chemical Manufacturing325220 | 20-99 | ◐ LIKELY ACTIVE |
| AFAercon Florida, LLC | Haines City | FL | Nonmetallic Mineral Product Manufacturing327331 | 20-99 | ◐ LIKELY ACTIVE |
| AFAgc Flat Glass North America Abingdon Plant | Abingdon | VA | Nonmetallic Mineral Product Manufacturing327211 | — | ◐ LIKELY ACTIVE |
| AFAgc Flat Glass North America Spring Hill Plant | Spring Hill | KS | Nonmetallic Mineral Product Manufacturing327211 | — | ◐ LIKELY ACTIVE |
| AIAgc Industries - Greenland Plant | Church Hill | TN | Nonmetallic Mineral Product Manufacturing327211 | — | ◐ LIKELY ACTIVE |
| AIAggregate Industries - Wcr, INC. | Centennial | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| AAAllison Abrasives INC | Lancaster | KY | Nonmetallic Mineral Product Manufacturing327910 | 20-99 | ◐ LIKELY ACTIVE |
| AIAluchem INC | Cincinnati | OH | Paper Manufacturing322110 | 20-99 | ◐ LIKELY ACTIVE |
| AAAmerican Artstone CO | New Ulm | MN | Nonmetallic Mineral Product Manufacturing327390 | 20-99 | ◐ LIKELY ACTIVE |
| ACAmerican Concrete Industries | Veazie | ME | Nonmetallic Mineral Product Manufacturing327390 | 20-99 | ◐ LIKELY ACTIVE |
| ACAmerican Concrete Supply INC | Cantonment | FL | Nonmetallic Mineral Product Manufacturing327320 | 100-499 | ◐ LIKELY ACTIVE |
| AMAmerican Maatco Cpb | Richland Hills | TX | Nonmetallic Mineral Product Manufacturing327331 | 20-99 | ◐ LIKELY ACTIVE |
Amrize Cement INC Holly Hill Plant | Holly Hill | SC | Nonmetallic Mineral Product Manufacturing327310 | — | ◐ LIKELY ACTIVE |
Amrize Cement Inc/whitehall Plt | Whitehall | PA | Nonmetallic Mineral Product Manufacturing327310 | — | ◐ LIKELY ACTIVE |
| AHAmrize Hagerstown Cement Plant (formerly Holcim Ha | Hagerstown | MD | Nonmetallic Mineral Product Manufacturing327310 | — | ◐ LIKELY ACTIVE |
| APAnaheim Plant 16 | Anaheim | CA | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| ACAnchor Concrete Prods. | Brick | NJ | Nonmetallic Mineral Product Manufacturing327331 | — | ◐ LIKELY ACTIVE |
| AGAnchor Glass Container CORP | Henryetta | OK | Nonmetallic Mineral Product Manufacturing327213 | — | ◐ LIKELY ACTIVE |
| AGAnchor Glass Container Corporation | Winchester | IN | Nonmetallic Mineral Product Manufacturing327213 | — | ◐ LIKELY ACTIVE |
| AGAnchor Glass Container Corporation - Plant 14 | Warner Robins | GA | Nonmetallic Mineral Product Manufacturing327212 | — | ◐ LIKELY ACTIVE |
| AGAnchor Glass Container CORP - Shakopee | Shakopee | MN | Nonmetallic Mineral Product Manufacturing327213 | — | ◐ LIKELY ACTIVE |
| AIAnthony, INC. | Sylmar | CA | Nonmetallic Mineral Product Manufacturing327215 | 100-499 | ◐ LIKELY ACTIVE |
| ABAntioch Building Materials Company | Pittsburg | CA | Petroleum and Coal Products Manufacturing324121 | 20-99 | ◐ LIKELY ACTIVE |
| APApex Plant | Las Vegas | NV | Nonmetallic Mineral Product Manufacturing327410 | — | ◐ LIKELY ACTIVE |
| ALApg Lime CORP Kimballton Plant 2 | Ripplemead | VA | Nonmetallic Mineral Product Manufacturing327410 | — | ◐ LIKELY ACTIVE |
| AMApg Mid-atlantic - Milford | Milford | VA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
Applied Laser Technology, INC | Beaverton | OR | Nonmetallic Mineral Product Manufacturing327113 | — | ◐ LIKELY ACTIVE |