| DIDelta Industries, Inc, Columbus Ad Plant | Columbus | — | ◐ LIKELY ACTIVE |
| DIDelta Industries, Inc., Crystal Springs Plant 3 | Crystal Springs | — | ◐ LIKELY ACTIVE |
| FPF-s Prestress LLC | Hattiesburg | — | ◐ LIKELY ACTIVE |
| GCGulf Coast Pre-stress Partners, LTD | Pass Christian | 100–499 | ◐ LIKELY ACTIVE |
| HRHernando Redi Mix | Nesbit | — | ◐ LIKELY ACTIVE |
| JMJackson, MS Wilbert Burial Vault Company | Jackson | 20–99 | ◐ LIKELY ACTIVE |
| JRJackson Ready Mix Concrete - Plant No 1 | Jackson | — | ◐ LIKELY ACTIVE |
| JRJones Ready Mix LLC | Sandy Hook | — | ◐ LIKELY ACTIVE |
| MMMmc Materials Inc, Aberdeen Facility | Aberdeen | — | ◐ LIKELY ACTIVE |
Mmc Materials Inc, Byhalia Plnt | Byhalia | — | ◐ LIKELY ACTIVE |
| MMMmc Materials Inc, Columbia | Columbia | — | ◐ LIKELY ACTIVE |
| MMMmc Materials Inc, Mccomb | Mccomb | — | ◐ LIKELY ACTIVE |
| MMMmc Materials Inc, Natchez Plant | Natchez | — | ◐ LIKELY ACTIVE |
| MMMmc Materials, Inc., North Natchez Plant | Natchez | — | ◐ LIKELY ACTIVE |
| NLNanocor LLC | Aberdeen | — | ◐ LIKELY ACTIVE |
| NLNorth Lamar Concrete INC | Sumrall | — | ◐ LIKELY ACTIVE |
| OSOxford Sand Company Inc, Pontotoc Plant | Pontotoc | — | ◐ LIKELY ACTIVE |
| PBPine Belt Ready Mix Concrete INC | Collins | — | ◐ LIKELY ACTIVE |
| PPProfile Products LLC | Blue Mountain | — | ◐ LIKELY ACTIVE |
| SDSaltillo Division of B and B Concrete Company INC | Saltillo | — | ◐ LIKELY ACTIVE |
| SCSoutheastern Concrete Company Inc, Plant Number 5 | Hattiesburg | — | ◐ LIKELY ACTIVE |
| SRSouthland Ready Mix Inc, Blue Mountain Facility | Blue Mountain | — | ◐ LIKELY ACTIVE |
| SRSouthland Ready Mix Inc, Corinth Facility | Corinth | — | ◐ LIKELY ACTIVE |
| TSThe Stone Source, INC | Brandon | — | ◐ LIKELY ACTIVE |
| TCTownes Construction Company INC | Grenada | — | ◐ LIKELY ACTIVE |
| TRTri-state Ready Mix | Byhalia | — | ◐ LIKELY ACTIVE |
| TCTupelo Concrete Products Company INC | Tupelo | — | ◐ LIKELY ACTIVE |
| VDVerona Division of B and B Concrete Company INC | Shannon | — | ◐ LIKELY ACTIVE |
| BRBakers Ready Mix | Louisville | — | ◐ LIKELY ACTIVE |
| BAB and B Concrete Company INC | Corinth | — | ◐ LIKELY ACTIVE |
| BAB and B Concrete Company Inc, Oxford Division | Oxford | — | ◐ LIKELY ACTIVE |
| BBB & B Concrete Company | Booneville | — | ◐ LIKELY ACTIVE |
| BUBlock Usa, Gulfport Plant | Gulfport | — | ◐ LIKELY ACTIVE |
| CCCoast Concrete Company, Inc., Plant Number 3 Oak Street | Biloxi | — | ◐ LIKELY ACTIVE |
| DIDelta Industries, Inc., Hernando Plant 27 | Hernando | — | ◐ LIKELY ACTIVE |
| DIDelta Industries Inc, Leakesville Plant | Leakesville | — | ◐ LIKELY ACTIVE |
| DIDelta Industries, Inc., Lucedale Plant 16 | Lucedale | — | ◐ LIKELY ACTIVE |
| DIDelta Industries, Inc., Starkville Plant 74 | Starkville | — | ◐ LIKELY ACTIVE |
| DCDesoto Concrete Products Inc, New Albany Plant | New Albany | — | ◐ LIKELY ACTIVE |
| FHFazzios Home and Farm Center INC | Gulfport | — | ◐ LIKELY ACTIVE |
| GFGloster Forest Products, LLC | Gloster | — | ◐ LIKELY ACTIVE |
| HDHouston Division of B & B Concrete CO INC. | Houston | — | ◐ LIKELY ACTIVE |
| JAJ and J Concrete | Coldwater | — | ◐ LIKELY ACTIVE |
| JJJ J Ferguson, Pretress and Precast Company Greenwood | Greenwood | — | ◐ LIKELY ACTIVE |
| LCLexington Concrete and Block Company, INC. | Mendenhall | — | ◐ LIKELY ACTIVE |
| LCLexington Concrete and Block Company Inc, Lexington Plant | Lexington | — | ◐ LIKELY ACTIVE |
| LCLexington Concrete and Block Company Inc, Pearl Plant | Pearl | — | ◐ LIKELY ACTIVE |
| MMMmc Materials Inc, Amory | Amory | — | ◐ LIKELY ACTIVE |
| MMMmc Materials Inc, Columbus 45 | Columbus | — | ◐ LIKELY ACTIVE |
| MMMmc Materials Inc, Greenwood | Greenwood | — | ◐ LIKELY ACTIVE |