| MMMmc Materials Inc, Indianola | Indianola | — | ◐ LIKELY ACTIVE |
| MMMmc Materials Inc, Wiggins | Wiggins | — | ◐ LIKELY ACTIVE |
| ODOxford Division of B and B Concrete Company INC | Oxford | — | ◐ LIKELY ACTIVE |
| PBPine Belt Ready Mix, Glendale Avenue Plant | Hattiesburg | — | ◐ LIKELY ACTIVE |
| SCSaint Catherine Ready Mix Concrete Company INC | Natchez | — | ◐ LIKELY ACTIVE |
| TSTri State Jackson Lands, LLC | Jackson | — | ◐ LIKELY ACTIVE |
| WPWarren Paving Inc, Moss Point | Moss Point | — | ◐ LIKELY ACTIVE |
| ABAcme Brick Company | Holly Springs | — | ◇ UNVERIFIED |
| ACAmerican Concrete Products Ms Inc, Hattiesburg Plant | Hattiesburg | — | ◇ UNVERIFIED |
| ARAmerican Ready Mix LLC | Gulfport | — | ◇ UNVERIFIED |
| AIAmericrete Inc, Plant Number 5, Philadelphia | Philadelphia | — | ◇ UNVERIFIED |
| BCBallard Contractors Inc, Winona Temp Site | Winona | — | ◇ UNVERIFIED |
| BAB and B Concrete Company INC | New Albany | — | ◇ UNVERIFIED |
| BAB and B Concrete Company Inc, Fulton Division | Fulton | — | ◇ UNVERIFIED |
| BAB and B Concrete Company Inc, Ripley | Ripley | — | ◇ UNVERIFIED |
| BAB and B Concrete Company Inc, South Fulton | Fulton | — | ◇ UNVERIFIED |
| BCBayou Concrete LLC Bay St Loui | Bay Saint Louis | — | ◇ UNVERIFIED |
| BCBayou Concrete Llc, Biloxi | Biloxi | — | ◇ UNVERIFIED |
| BCBayou Concrete Llc, Firetower Road Plant | Pass Christian | — | ◇ UNVERIFIED |
| BCBayou Concrete Llc, Ocean Springs | Ocean Springs | — | ◇ UNVERIFIED |
| BCBayou Concrete Llc, Port Bienville | Pearlington | — | ◇ UNVERIFIED |
| BSBlue Springs Division of B and B Concrete Company INC | Blue Springs | — | ◇ UNVERIFIED |
| BBBoral Bricks INC | Macon | — | ◇ UNVERIFIED |
| CICataphote INC | Flowood | — | ◇ UNVERIFIED |
| CSCentral Supply and Ready Mix | Philadelphia | — | ◇ UNVERIFIED |
| CGCertainteed Gypsum & Ceiling Manufacturing, INC. | Meridian | — | ◇ UNVERIFIED |
| CCCoast Concrete LLC | Biloxi | — | ◇ UNVERIFIED |
| CCCordova Concrete INC | Olive Branch | — | ◇ UNVERIFIED |
| CCCordova Concrete Inc, Plant 6 | Southaven | — | ◇ UNVERIFIED |
| CACrh Americas, INC | Gulfport | — | ◇ UNVERIFIED |
| DIDelta Industries INC | Waveland | — | ◇ UNVERIFIED |
| DIDelta Industries, Inc., Bay Springs Plant 86 | Bay Springs | — | ◇ UNVERIFIED |
| DIDelta Industries, Inc., Brookhaven Plant 9 | Brookhaven | — | ◇ UNVERIFIED |
| DIDelta Industries, Inc., Hattiesburg Cole Road Plant 87 | Hattiesburg | — | ◇ UNVERIFIED |
| DIDelta Industries, INC - Hernando | Hernando | — | ◇ UNVERIFIED |
| DIDelta Industries Inc, Jackson Ready Mix Plant Number 5 | Clinton | — | ◇ UNVERIFIED |
| DIDelta Industries, Inc., Macon Plant 70 | Macon | — | ◇ UNVERIFIED |
| DIDelta Industries, INC - Plant 41 | Columbus | — | ◇ UNVERIFIED |
| DIDelta Industries, Inc., Saucier Plant 18 | Saucier | — | ◇ UNVERIFIED |
| DIDelta Industries Inc, Vicksburg Plant 14 | Vicksburg | — | ◇ UNVERIFIED |
| DIDelta Industries, Inc., Yazoo City Plant 17 | Yazoo | — | ◇ UNVERIFIED |
| DPDesign Precast and Pipe Inc, Thomas D Murray Mine | Gulfport | — | ◇ UNVERIFIED |
| DPDesign Precast & Pipe | Gulfport | — | ◇ UNVERIFIED |
 Dunn Utility Products Llc, Byram Precast Plant | Byram | — | ◇ UNVERIFIED |
| Dunn Utility Products - New Albany | New Albany | — | ◇ UNVERIFIED |
| FPForterra Pipe and Precast Llc, Prentiss Plant | Prentiss | — | ◇ UNVERIFIED |
| FPForterra Pipe & Precast - Prentiss | Prentiss | — | ◇ UNVERIFIED |
| GAGeneral Atomics Ems Systems, Iuka Facility | Iuka | — | ◇ UNVERIFIED |
| GSGulf States Ready Mix, Moss Point Plant | Moss Point | — | ◇ UNVERIFIED |
| GSGulf States Ready-mix Plant 25 | Bay Saint Louis | — | ◇ UNVERIFIED |
