| BRBakers Ready Mix | Louisville | 20–99 | ◐ LIKELY ACTIVE |
| JJJ J Ferguson, Pretress and Precast Company Greenwood | Greenwood | 20–99 | ◐ LIKELY ACTIVE |
| LPLees Precast Concrete Inc. | Aberdeen | 20–99 | ◐ LIKELY ACTIVE |
| SCSaint Catherine Ready Mix Concrete Company INC | Natchez | 1–19 | ◐ LIKELY ACTIVE |
| JPJackson Precast INC | Jackson | 20–99 | ◇ UNVERIFIED |
| MRMilligan Ready Mix | Iuka | 1–19 | ◇ UNVERIFIED |
| SRSouthern Ready Mix , Lucedale Plant | Lucedale | 1–19 | ◇ UNVERIFIED |
| SRSouthwest Ready Mix Concrete INC | Summit | 1–19 | ◇ UNVERIFIED |
| TCTri County Ready Mix | Stringer | 1–19 | ◇ UNVERIFIED |
| ASAndrew Shirk Dba East Mississippi Concrete | Macon | — | ◐ LIKELY ACTIVE |
| BAB and B Concrete Company | Holly Springs | — | ◐ LIKELY ACTIVE |
| BAB and B Concrete Company Inc, Pontotoc Division | Pontotoc | — | ◐ LIKELY ACTIVE |
| BMBc Mississippi INC | Columbus | — | ◐ LIKELY ACTIVE |
| BGBekeson Glass LLC | Flowood | 1–19 | ▲ REPORTED CLOSED |
| BUBuzzi Unicem Ready Mix Llc, Dba Memphis Ready Mix | Horn Lake | — | ◐ 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 |
| 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 |
| MLMississippi Limestone CORP | Friars Point | 100–499 | ◐ LIKELY ACTIVE |
| MMMmc Materials INC | Robinsonville | — | ◐ LIKELY ACTIVE |
| MMMmc Materials Inc, Columbia | Columbia | — | ◐ LIKELY ACTIVE |
| MMMmc Materials Inc, Mccomb | Mccomb | — | ◐ LIKELY ACTIVE |
| MMMmc Materials Inc, 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 |
| PPProfile Products LLC | Blue Mountain | — | ◐ LIKELY ACTIVE |
| SDSaltillo Division of B and B Concrete Company INC | Saltillo | — | ◐ LIKELY ACTIVE |
| STSenter Transit Mix Division of Concrete Industries INC | Tupelo | — | ◐ 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 |
| TCTownes Construction Company INC | Grenada | — | ◐ LIKELY ACTIVE |
| TRTri-state Ready Mix | Byhalia | — | ◐ LIKELY ACTIVE |
| VDVerona Division of B and B Concrete Company INC | Shannon | — | ◐ 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, Columbus Ad Plant | Columbus | — | ◐ 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 - Plant 41 | Columbus | — | ◐ LIKELY ACTIVE |
| DIDelta Industries, Inc., Starkville Plant 74 | Starkville | — | ◐ LIKELY ACTIVE |
| DCDesoto Concrete Products Inc, New Albany Plant | New Albany | — | ◐ LIKELY ACTIVE |