| MBMcgee Brothers Company Incorporated | Midland | — | ◇ UNVERIFIED |
| MCMetromont Corporation | Charlotte | — | ▲ REPORTED CLOSED |
| MMMetromont Materials-catawba | Hickory | — | ◇ UNVERIFIED |
| MMMetromont Materials Corporation | Marion | — | ◇ UNVERIFIED |
| MMMetromont Materials Corporation - Concord Plt | Concord | — | ◇ UNVERIFIED |
| MMMetromont Materials Corporation - Indian Trail Plant | Indian Trail | — | ◇ UNVERIFIED |
| MMMetromont Materials Limited Liability Company | North Wilkesboro | — | ◇ UNVERIFIED |
| MPMetromont Prestress Company | Charlotte | — | ◇ UNVERIFIED |
| MMMix Masters Concrete, INC. | Beulaville | — | ◇ UNVERIFIED |
| MCMurdock Concrete Company | Greensboro | — | ◇ UNVERIFIED |
| NPNc Products Corporation - Fuquay | Fuquay Varina | — | ◇ UNVERIFIED |
| OCOld Carolina Brick Gold Hill | Gold Hill | — | ◇ UNVERIFIED |
| OPOldcastle Precast INC | Greensboro | — | ◇ UNVERIFIED |
| PRPhillips Ready Mix Concrete, INC. | Yadkinville | — | ◇ UNVERIFIED |
| PCPlt Concrete Services, INC. | Wilson | — | ◇ UNVERIFIED |
| PCPlt Concrete Services, Incorporated | Zebulon | — | ◇ UNVERIFIED |
| PMPrince Minerals, LLC - Monroe | Monroe | — | ◇ UNVERIFIED |
| QCQuality Concrete Company | Fayetteville | — | ◇ UNVERIFIED |
| RIRauch Industries - South York Road Plant | Gastonia | — | ◇ UNVERIFIED |
| RCRea Contracting, LLC 0140 Concrete Plant | Salisbury | — | ◇ UNVERIFIED |
| RMReady Mixed Concrete | Rocky Mount | — | ◇ UNVERIFIED |
| RMReady Mixed Concrete - Clinton Plant | Clinton | — | ◇ UNVERIFIED |
| RMReady Mixed Concrete CO | Rural Hall | — | ◇ UNVERIFIED |
| RMReady Mixed Concrete CO. - Goldsboro | Goldsboro | — | ◇ UNVERIFIED |
| RMReady Mixed Concrete CO - Greenville | Greenville | — | ◇ UNVERIFIED |
| RMReady Mixed Concrete Company | Winston-salem | — | ◇ UNVERIFIED |
| RMReady Mixed Concrete Company | Wilmington | — | ◇ UNVERIFIED |
| RMReady Mixed Concrete Company | Williamston | — | ◇ UNVERIFIED |
| RMReady Mixed Concrete Company - Castle Hayne | Castle Hayne | — | ◇ UNVERIFIED |
| RMReady Mixed Concrete Company Garner Number 5 | Garner | — | ◇ UNVERIFIED |
| RMReady Mixed Concrete Company - Havelock | Havelock | — | ◇ UNVERIFIED |
| RMReady Mixed Concrete Company - Newport | Newport | — | ◇ UNVERIFIED |
| RMReady Mixed Concrete Company, Plant #9, Louisburg | Louisburg | — | ◇ UNVERIFIED |
| RMReady Mixed Concrete Company-reames Plan | Charlotte | — | ◇ UNVERIFIED |
| RMReady Mixed Concrete Company - Shallotte | Shallotte | — | ◇ UNVERIFIED |
| RMReady Mixed Concrete Company Wilson | Sims | — | ◇ UNVERIFIED |
| RMReady Mixed Concrete CO Plant 33 | New Bern | — | ◇ UNVERIFIED |
| RMReady Mixed Concrete CO. - Washington | Washington | — | ◇ UNVERIFIED |
| RMReady Mixed Concrete - Fayetteville Plant | Fayetteville | — | ◇ UNVERIFIED |
| RMReady Mixed Concrete - Plant No 4 - Hoke | Raeford | — | ◇ UNVERIFIED |
| RMReady Mixed Concrete - Plant No 6 -laurinburg | Laurinburg | — | ◇ UNVERIFIED |
| RMReady Mixed Concrete - Plant Number 3 - Spring Lake | Spring Lake | — | ◇ UNVERIFIED |
| RMReady Mixed Concrete - Roanoke Rapids | Roanoke Rapids | — | ◇ UNVERIFIED |
| RMReady Mixed Concrete - Sanford Plant 7 | Sanford | — | ◇ UNVERIFIED |
| RGRenaissance Glass INC | Alexander | — | ◇ UNVERIFIED |
| RHR H Loven Co, INC. | Boone | — | ◇ UNVERIFIED |
| R1Rmq 1 and 2 | Rocky Mount | — | ◇ UNVERIFIED |
| RCRoanoke Chowan Ready Mix | Ahoskie | — | ◇ UNVERIFIED |
| RPRocky Point Quarry | Rocky Point | — | ◇ UNVERIFIED |
| RNRoxboro - Nc Rmc | Roxboro | — | ◇ UNVERIFIED |
