| GCGranite Construction Company, INC | Sparks | NV | — | ◐ LIKELY ACTIVE |
| GNGranite Northwest Olympia Plant | Olympia | WA | — | ◐ LIKELY ACTIVE |
| GCGraves CO Paving Plant | Hickory | KY | — | ◐ LIKELY ACTIVE |
| GCGreene County Highway Department | Greeneville | TN | — | ◐ LIKELY ACTIVE |
| GCGreensite Concrete Washout Limited Liability CO | Gainesville | VA | — | ◐ LIKELY ACTIVE |
| GCGresser CO INC - Shakopee | Shakopee | MN | — | ◐ LIKELY ACTIVE |
| GRGriswold Ready Mix Concrete INC | Jacksonville | FL | — | ◐ LIKELY ACTIVE |
| GMGroup Materials INC | Monmouth | IL | — | ◐ LIKELY ACTIVE |
| GCGsp Concrete LLC | Duncan | SC | — | ◐ LIKELY ACTIVE |
| HQHamm Quarry INC | Perry | KS | — | ◐ LIKELY ACTIVE |
| HPHanover Prest Paving Brick Plt | Hanover | PA | — | ◐ LIKELY ACTIVE |
| HPHanson Pipe and Products INC Salem Plant 2 | Salem | VA | — | ◐ LIKELY ACTIVE |
| HRHard Rock & Redi Mix INC Main Plant | Salida | CO | — | ◐ LIKELY ACTIVE |
| HPHarlan Plant # 19 | Bledsoe | KY | — | ◐ LIKELY ACTIVE |
| HCHarper Company | Hebron | SC | — | ◐ LIKELY ACTIVE |
| HCHarrison Construction Division of Apac-atlantic INC. | Burnsville | NC | — | ◐ LIKELY ACTIVE |
| HCHarrison Construction Divison of Apac-te | Franklin | NC | — | ◐ LIKELY ACTIVE |
| HLHaskell Lemon Group LLC / Astec Plant | Perkins | OK | — | ◐ LIKELY ACTIVE |
| HLHaskell Lemon Group LLC / East Plant | Oklahoma City | OK | — | ◐ LIKELY ACTIVE |
| HMHavin Material Service-st Clair Plant | Saint Clair | MO | — | ◐ LIKELY ACTIVE |
| HMHaydon Materials LLC - Lebanon Quarry | Lebanon | KY | — | ◐ LIKELY ACTIVE |
| HDH D Crowder and Sons INC - Stone Quarry | Austinville | VA | — | ◐ LIKELY ACTIVE |
| HAHeatherly Asphalt | Cullman | AL | — | ◐ LIKELY ACTIVE |
| HFHeber-binggeli Facility | Charleston | UT | — | ◐ LIKELY ACTIVE |
| HCHenningsen Construction, INC. (haven) | Portable | KS | — | ◐ LIKELY ACTIVE |
| HAHeritage Asphalt, LLC | Columbus | OH | — | ◐ LIKELY ACTIVE |
| HAHess Asphalt Paving (n0139) | Clyde Twp | MI | — | ◐ LIKELY ACTIVE |
| HPHighland Paving Company, LLC | Sanford | NC | — | ◐ LIKELY ACTIVE |
| HMHighway Materials Inc/plymouth Mtg Asphalt Plt | Plymouth Meeting | PA | — | ◐ LIKELY ACTIVE |
| HMHighway Materials Malvern Plt | Frazer | PA | — | ◐ LIKELY ACTIVE |
| HHHi Hill Ready Mix Company | Seymour | IN | — | ◐ LIKELY ACTIVE |
| HBHilltop Basic Resources INC. Downtown Ready Mix | Cincinnati | OH | — | ◐ LIKELY ACTIVE |
| HCHinkle Contracting CO Llc-carrollton Asphalt Plant | Carrollton | KY | — | ◐ LIKELY ACTIVE |
| HCHinkle Contracting CO LLC - Ravenna Asphalt Plant | Ravenna | KY | — | ◐ LIKELY ACTIVE |
| HCHinkle Contracting Company LLC | Paris | KY | — | ◐ LIKELY ACTIVE |
| HCHk Contractors INC 00207 | Portable | ID | — | ◐ LIKELY ACTIVE |
| HKH & K Group INC Asphalt Plt/foster Twp | Eckley | PA | — | ◐ LIKELY ACTIVE |
| HIHolcim-wcr INC - Francis | Longmont Area | CO | — | ◐ LIKELY ACTIVE |
| HCHolroyd CO Nisqually Pit | Olympia | WA | — | ◐ LIKELY ACTIVE |
| HCHommel Concrete Company | Newport | TN | — | ◐ LIKELY ACTIVE |
| HCHorse Cave Asphalt Plant | Horse Cave | KY | — | ◐ LIKELY ACTIVE |
| HOHosea O. Weaver & Sons, Inc.-asphalt Plant #2 | Grove Hill | AL | — | ◐ LIKELY ACTIVE |
| HMHot Mix Plant 2009-05, Gcp3-3995 | Portable Source | NM | — | ◐ LIKELY ACTIVE |
| HDHouston Division of B & B Concrete CO INC. | Houston | MS | — | ◐ LIKELY ACTIVE |
| HMHoward Materials LLC | Indianapolis | IN | — | ◐ LIKELY ACTIVE |
| HAHowell Asphalt CO | Effingham | IL | — | ◐ LIKELY ACTIVE |
| HCHubbard Construction Company | Tampa | FL | — | ◐ LIKELY ACTIVE |
| HCHuber Carbonates, LLC (marble Hill) | Marble Hill | GA | — | ◐ LIKELY ACTIVE |
| HPHuey P Stockstill LLC - Tycer Plant #2 | Hammond | LA | — | ◐ LIKELY ACTIVE |
| HMHwy Materials Blacktop Plt Lititz | Lititz | PA | — | ◐ LIKELY ACTIVE |