| HBHayward Baker | Gillespie | IL | — | ◇ UNVERIFIED |
| HBH B Stanley Incorporated | Beaver Dam | KY | — | ◇ UNVERIFIED |
| HZHb Zachary CO Denver Int Arprt | Denver | CO | — | ◇ UNVERIFIED |
| HCH C Muddox | Ione | CA | — | ◇ UNVERIFIED |
| HCH C Muddox-sacramento | Sacramento | CA | — | ◇ UNVERIFIED |
| HCHdm Construction Enterprises Inc./dba Hd | Commerce City | CO | — | ◇ UNVERIFIED |
| HRH&d Redi-mix LLC | Americus | GA | — | ◇ UNVERIFIED |
| HIHead, INC. | Marietta | GA | — | ◇ UNVERIFIED |
| HIHead, INC. - Pope Aaf Plant | Ft. Liberty (cumberland,nc) | NC | — | ◇ UNVERIFIED |
| HWHead West INC | Compton | CA | — | ◇ UNVERIFIED |
 Heavy Materials Svi - St Croix | Christiansted | VI | — | ◇ UNVERIFIED |
| HRHebron Ready Mix Plant | Hebron | NE | — | ◇ UNVERIFIED |
| HSHeft & Sons L.l.c. | Greensburg | KS | — | ◇ UNVERIFIED |
| HHH.e. Hunewill Construction Co., INC. | Wellington | NV | — | ◇ UNVERIFIED |
| HMHeidelberg Materials - Alvin Rmc | Alvin | TX | — | ◇ UNVERIFIED |
| HMHeidelberg Materials Southeast Agg LLC Portablr Crushing Plant #1 | Georgia | GA | — | ◇ UNVERIFIED |
| HCHenry Camosse and Son | Worcester | MA | — | ◇ UNVERIFIED |
| HMHeredia Materials LLC | Goodyear | AZ | — | ◇ UNVERIFIED |
| HCHermanos Concrete Pump, INC | Miami | FL | — | ◇ UNVERIFIED |
| HCHessian Co., LTD. | Downingtown | PA | — | ◇ UNVERIFIED |
| HWHickman Williams & Company | Etna | PA | — | ◇ UNVERIFIED |
| HGHigh Grade Concrete | Muskegon Hts | MI | — | ◇ UNVERIFIED |
| HGHigh Grade Materials | Grand Rapids | MI | — | ◇ UNVERIFIED |
| HGHigh Grade Materials Company | Grand Rapids | MI | — | ◇ UNVERIFIED |
| HMHi-grade Materials-bear Valley Rd | Hesperia | CA | — | ◇ UNVERIFIED |
| HMHi-grade Materials CO | Littlerock | CA | — | ◇ UNVERIFIED |
| HMHi-grade Materials Company - Yucca Valley | Yucca Valley | CA | — | ◇ UNVERIFIED |
| HMHi-grade Materials-two Mile Rd | Joshua Tree | CA | — | ◇ UNVERIFIED |
| HMHi-grade Materials-w Avenue H-6 | Lancaster | CA | — | ◇ UNVERIFIED |
| HRHildreth Ready Mix, LLC | Wadesboro | NC | — | ◇ UNVERIFIED |
| HRHillsboro Ready Mix | Hillsboro | TX | — | ◇ UNVERIFIED |
| HMHills Materials CO | Chadron | NE | — | ◇ UNVERIFIED |
| HRHilmar Ready Mix Rockery-nursery LLC | Hilmar | CA | — | ◇ UNVERIFIED |
| HSHiskett & Sons | Fallon | NV | — | ◇ UNVERIFIED |
| HRHissong Ready-mix & Aggregates, LLC | Westbrook | ME | — | ◇ UNVERIFIED |
| HGH&k Group, INC. | Birdsboro | PA | — | ◇ UNVERIFIED |
| HCHma Concrete LLC Dba Heritage Concrete Frankford Facility | Frankford | DE | — | ◇ UNVERIFIED |
| HPHm Pacific Northwest, INC. | Portland | OR | — | ◇ UNVERIFIED |
| HSHm Southeast Concrete (hogansville Plant) | Hogansville | GA | — | ◇ UNVERIFIED |
| HSHm Southeast Concrete (jenkinsburg Plant) | Jenkinsburg | GA | — | ◇ UNVERIFIED |
| HSHm Southeast Concrete (thomaston Plant) | Thomaston | GA | — | ◇ UNVERIFIED |
| HPHmss Plant - Old Conroe | Conroe | TX | — | ◇ UNVERIFIED |
| HIHobbs Island Rd Concrete Batch Plant | Huntsville | AL | — | ◇ UNVERIFIED |
| HLHoch Lumber | Yuma | CO | — | ◇ UNVERIFIED |
| HSHog Slat INC. - Lamar Plant | Lamar | CO | — | ◇ UNVERIFIED |
| HNHolcim Newington Rmc | Lorton | VA | — | ◇ UNVERIFIED |
| HIHolcim-sor, Inc.-crowley | Crowley | TX | — | ◇ UNVERIFIED |
| HIHolcim-sor, Inc.-greenwell Springs | Baton Rouge | LA | — | ◇ UNVERIFIED |
| HSHolcim-sor,inc. - Sherman Rmx | Sherman | TX | — | ◇ UNVERIFIED |
| HIHolcim-sor, INC. - Zachary | Zachary | LA | — | ◇ UNVERIFIED |
