Howarth Granite Holdings LLC | Claymont | DE | Nonmetallic Mineral Product Manufacturing327991 | — | ● ACTIVE |
Miles Scientific CORP | Newark | DE | Nonmetallic Mineral Product Manufacturing327215 | — | ● ACTIVE |
| HCHma Concrete LLC Dba Heritage Concrete Heald Street Facility | Wilmington | DE | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| PMPrince Minerals LLC | New Castle | DE | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| MCM Cubed Technologies | Newark | DE | Nonmetallic Mineral Product Manufacturing327110 | — | ◐ LIKELY ACTIVE |
| LRLincoln Ready Mix Concrete | Lincoln | DE | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| SCSeaford Concrete Products | Bridgeville | DE | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| TCThoro-goods Concrete | Millsboro | DE | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| CCCoker Concrete | Dover | DE | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| HCHma Concrete LLC Dba Heritage Concrete Cheswold Facility | Cheswold | DE | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| HCHma Concrete LLC Dba Heritage Concrete Middletown Faci;ity | Townsend | DE | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| PIPpg Inds INC Works 32 | Newark | DE | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| RMRinker Middletown Pipe | Middletown | DE | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| ACAtlantic Contracting Services, LLC | Greenwood | DE | Nonmetallic Mineral Product Manufacturing327991 | 20-99 | ◐ LIKELY ACTIVE |
| DPDover Plant | Dover | DE | Nonmetallic Mineral Product Manufacturing327390 | 1-19 | ◐ LIKELY ACTIVE |
| PBParker Block | Millsboro | DE | Nonmetallic Mineral Product Manufacturing327331 | 20-99 | ◐ LIKELY ACTIVE |
| PRPHLCP Rinker Materials | Middletown | DE | Nonmetallic Mineral Product Manufacturing327332 | 20-99 | ◐ LIKELY ACTIVE |
| RIRath Inc., Newark Facility | Newark | DE | Nonmetallic Mineral Product Manufacturing327120 | 1-19 | ◐ LIKELY ACTIVE |
| RCRocla Concrete Tie, Inc - Delaware Facility | Bear | DE | Nonmetallic Mineral Product Manufacturing327390 | 20-99 | ◐ LIKELY ACTIVE |
| BSBest Stone Works of De, LLC | Wilmington | DE | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| BMBear Materials LLC | Bear | DE | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| GAGillespie and Son, INC. | Greenwood | DE | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| HCHma Concrete LLC Dba Heritage Concrete Frankford Facility | Frankford | DE | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RAR. and H. Filter Co., INC. | Georgetown | DE | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
| SGShamrock Glass Company INC. | Seaford | DE | Nonmetallic Mineral Product Manufacturing327213 | — | ◇ UNVERIFIED |
| TFTyson F. Sartin, INC. | Saint Georges | DE | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |