| ICImage Concrete, INC. | Dallas | TX | — | ◇ UNVERIFIED |
| IYImc-pocatello Yellowstone Rea | Park County | WY | — | ◇ UNVERIFIED |
| IIImi Indiana LLC | Marion | IN | — | ◇ UNVERIFIED |
| IIImi Indiana LLC | North Vernon | IN | — | ◇ UNVERIFIED |
| IIImi Indiana LLC New Point 177 | Greensburg | IN | — | ◇ UNVERIFIED |
| IIImi Irving Materials INC | Elizabethtown | KY | — | ◇ UNVERIFIED |
| IKImi Kentucky LLC | Horse Cave | KY | — | ◇ UNVERIFIED |
| IKImi Kentucky LLC - Russell Springs 815 | Russell Springs | KY | — | ◇ UNVERIFIED |
| IPImi Plant 106 | Indianapolis | IN | — | ◇ UNVERIFIED |
| IPImi Plant 117 | Crawfordsville | IN | — | ◇ UNVERIFIED |
| IPImi Plant 149 | Mooresville | IN | — | ◇ UNVERIFIED |
| ISImi South LLC | Henderson | KY | — | ◇ UNVERIFIED |
| ISImi South LLC - Brandenburg | Henderson | KY | — | ◇ UNVERIFIED |
| ISImi South LLC - Mount Washington 877 | Walton | KY | — | ◇ UNVERIFIED |
| ISImi South LLC - Mount Washington 877 | Franklin | KY | — | ◇ UNVERIFIED |
| ISImi South LLC - Radcliff 872 | Greensburg | KY | — | ◇ UNVERIFIED |
| ISImi South LLC - Winchester 857 | Radcliff | KY | — | ◇ UNVERIFIED |
| ISImi Southwest LLC - Henderson 515 | Harrodsburg | KY | — | ◇ UNVERIFIED |
| ITImi Tennessee INC | Morrison | TN | — | ◇ UNVERIFIED |
| ITImi Tennessee INC | Clarksville | TN | — | ◇ UNVERIFIED |
| ITImi Tennessee, LLC (spring Hill) | Nashville | TN | — | ◇ UNVERIFIED |
| IRIndependence Ready Mix | Independence | KS | — | ◇ UNVERIFIED |
 Indian Industries INC D/b/a US Weight | Olney | IL | — | ◇ UNVERIFIED |
| ISIndian Springs Road Concrete Plant | Madison | AL | — | ◇ UNVERIFIED |
| IAInduge a Bath INC. | Sarasota | FL | — | ◇ UNVERIFIED |
| IEIngram Enterprises, L.p. | San Angelo | TX | — | ◇ UNVERIFIED |
| IRIngram Readymix Del Rio | Del Rio | TX | — | ◇ UNVERIFIED |
| IRIngram Ready Mix INC. | San Antonio | TX | — | ◇ UNVERIFIED |
| IRIngram Readymix Seguin | Seguin | TX | — | ◇ UNVERIFIED |
| IBInnovative Block Plant | La Feria | TX | — | ◇ UNVERIFIED |
| IPInnovative Prestress, LLC | Tarpon Springs | FL | — | ◇ UNVERIFIED |
| ITInnovative Technology & Materials INC | Chicago | IL | — | ◇ UNVERIFIED |
| IIIntegrity Industries LLC | Bend | OR | — | ◇ UNVERIFIED |
| IIIntegrity Industries LLC | Bend | OR | — | ◇ UNVERIFIED |
| IPIntegrity Pool Development | Bradenton | FL | — | ◇ UNVERIFIED |
| IPIntercon Portable | Summerville | SC | — | ◇ UNVERIFIED |
| ICInterlock Concrete Products, INC. | Jordan | MN | — | ◇ UNVERIFIED |
| IIInterra Innovation INC | Andover | MA | — | ◇ UNVERIFIED |
| ICInterstate Concrete and Asphalt | Oldtown | ID | — | ◇ UNVERIFIED |
| ICInterstate Concrete and Asphalt CO Elk | Elk | WA | — | ◇ UNVERIFIED |
| ICInterstate Concrete & Asphalt Boardman | Boardman | OR | — | ◇ UNVERIFIED |
| ICInterstate Concrete & Asphalt - Freeman | Post Falls | ID | — | ◇ UNVERIFIED |
| ICInterstate Concrete & Asphalt - Market | Spokane | WA | — | ◇ UNVERIFIED |
| ICInterstate Concrete & Asphalt Rathdrum | Rathdrum | ID | — | ◇ UNVERIFIED |
| ISInterstate Safety Service, Incorporated | Clarks Summit | PA | — | ◇ UNVERIFIED |
| ITIn The Mix Decorative Concrete LLC | Charlotte Hall | MD | — | ◇ UNVERIFIED |
| IDInvalid Duplicate Stationary | Laramie | WY | — | ◇ UNVERIFIED |
| IFIrving F Jensen CO Dba Castle Rock Const | Sioux City | CO | — | ◇ UNVERIFIED |
| IMIrving Material INC | Peru | IN | — | ◇ UNVERIFIED |
| IMIrving Materials INC | Oak Grove (christian) | KY | — | ◇ UNVERIFIED |
