| HPHmss Plant - Victoria | Victoria | TX | — | ◇ UNVERIFIED |
| HPHmss Plant - West Road | Katy | TX | — | ◇ UNVERIFIED |
| HFHobusch Facility | Sandy | UT | — | ◇ UNVERIFIED |
| HRHolliday Rock | Montebello | CA | — | ◇ UNVERIFIED |
| HRHolliday Rock Company - Palmdale | Palmdale | CA | — | ◇ UNVERIFIED |
| HCHoward Concrete Pumping CO INC | Belleville | IL | — | ◇ UNVERIFIED |
| HIHpkd INC. | Pittsburgh | PA | — | ◇ UNVERIFIED |
| HLHubbell Lenoir City INC | San Jose | CA | — | ◇ UNVERIFIED |
| HOHubbell Okc Family | Oklahoma City | OK | — | ◇ UNVERIFIED |
| HPHuntsman Pigments Americas, LLC (dba Southern Color) | Cartersville | GA | — | ◇ UNVERIFIED |
| HWHupp Wilbert Vault Co, INC. | Gahanna | OH | — | ◇ UNVERIFIED |
| HSHurst Sakrete Plant | Fort Worth | TX | — | ◇ UNVERIFIED |
| HRHusky Run, LLC | Sturgeon Lake | MN | — | ◇ UNVERIFIED |
| HMHydraulic Mudpumps INC. | Manitowoc | WI | — | ◇ UNVERIFIED |
| HCHydro Conduit | Thomasville | NC | — | ◇ UNVERIFIED |
| HCHydro Conduit CORP Dba Rinker Materials | Fresno | CA | — | ◇ UNVERIFIED |
| HCHydro Conduit Corporation | Harrisburg | NC | — | ◇ UNVERIFIED |
| HCHydro Conduit Corporation | Wilson | NC | — | ◇ UNVERIFIED |
| HCHydro Conduit Corporation | Phoenix | AZ | — | ◇ UNVERIFIED |
| HCHydro Conduit Corporation | Frederick | MD | — | ◇ UNVERIFIED |
| HCHydro Conduit Corporation | Thomasville | NC | — | ◇ UNVERIFIED |
| HCHydro Conduit Corporation | Henderson | NV | — | ◇ UNVERIFIED |
| HCHydro Conduit Corporation Dba Rinker Materials Concrete Pipe | Wilson | NC | — | ◇ UNVERIFIED |
| HCHydro Conduit, LLC | Alexandria | LA | — | ◇ UNVERIFIED |
| HCHydro Conduit LLC Dba Rinker Materials | Apopka | FL | — | ◇ UNVERIFIED |
| IIIhc Industrial Activity Area | Texarkana | AR | — | ◇ UNVERIFIED |
| IPIJA Properties LLC | Farley | IA | — | ◇ UNVERIFIED |
| ISIkard Septic Manufacturing and Sales | Harvest | AL | — | ◇ UNVERIFIED |
| IPIllini Precast LLC | Charlestown | IN | — | ◇ UNVERIFIED |
| IRIndependence Recycling Jacksonville | Jacksonville | FL | — | ◇ UNVERIFIED |
| ICIndependent Concrete Pipe | Plainville | MA | — | ◇ UNVERIFIED |
| ICIndependent Concrete Pipe CO of Ky | Louisville | KY | — | ◇ UNVERIFIED |
| IAInduge a Bath INC. | Sarasota | FL | — | ◇ UNVERIFIED |
| IPInnovative Prestress, LLC | Tarpon Springs | FL | — | ◇ UNVERIFIED |
| IIIntegrity Industries LLC | Bend | OR | — | ◇ UNVERIFIED |
| IIIntegrity Industries LLC | Bend | OR | — | ◇ UNVERIFIED |
| IIInterra Innovation INC | Andover | MA | — | ◇ UNVERIFIED |
| ISInterstate Safety Service, Incorporated | Clarks Summit | PA | — | ◇ UNVERIFIED |
| IMIVA Materials LLC | San Antonio | TX | — | ◇ UNVERIFIED |
| IRIvey Red-mix | Mineral Point | WI | — | ◇ UNVERIFIED |
| JRJ&A Real Estate LLC | Spencer | IN | — | ◇ UNVERIFIED |
| JEJaxon Enterprises | Sjvapcd | CA | — | ◇ UNVERIFIED |
| JPJBALL Precast LLC | Willmar | MN | — | ◇ UNVERIFIED |
| JSJb Statuary INC | Canby | OR | — | ◇ UNVERIFIED |
 Jefferson Concrete CORP. | Watertown | NY | — | ◇ UNVERIFIED |
| JSJenasis Structures INC. | Miami | FL | — | ◇ UNVERIFIED |
| JMJennchem Midwest, LLC | Macedonia | IL | — | ◇ UNVERIFIED |
| JEJensen Enterprises | Kapolei | HI | — | ◇ UNVERIFIED |
| JEJensen Enterprises INC | Santa Rosa | CA | — | ◇ UNVERIFIED |
 Jensen Enterprises, INC. | Sparks | NV | — | ◇ UNVERIFIED |
