| Aggregates Inc | 319-395-0050 | 6101 Blairs Ferry Rd | Cedar Rapids | IA | 52411 |
| Anderson B L Inc | 319-846-2148 | 4 Counquarry RR | Fairfax | IA | 52228 |
| Anderson B L Inc | 319-393-7925 | Robins Quarry Robins | Cedar Rapids | IA | 52402 |
| Basic Material Corp | 319-827-3121 | Widger Quarry Rt 1 | Jesup | IA | 50648 |
| Basic Materials Corp Sand & Gravel Plant | 319-233-1411 | 2429 Wagner Rd | Waterloo | IA | 50703 |
| Beach Quarry | 319-837-6922 | RR 2 | West Point | IA | 52656 |
| Cessford Construction Co | 319-878-3920 | Camanche Quarry | Farmington | IA | 52626 |
| Cessford Construction Co | 319-837-6515 | Hawkeye Quarry | West Point | IA | 52657 |
| Cessford Construction Co Geode Quarry | 319-392-4228 | 8341 Bridgeport Rd | Danville | IA | 52623 |
| Cessford Construction Nelson Quarry | 319-394-3485 | 22751 67th Ave | Mediapolis | IA | 52637 |
| Concrete Recyclers Inc | 319-366-7410 | 2250 A St SW | Cedar Rapids | IA | 52404 |
| Coots Material Co | 319-477-8181 | 1815 58th St | Garrison | IA | 52229 |
| Iron Hill Quarry | 319-652-6025 | 15818-145th Ave | Maquoketa | IA | 52060 |
| Joinerville Quarry | 319-673-3581 | Hwy 64 W | Maquoketa | IA | 52060 |
| Kaser Corporation Mediapolis | 319-394-3400 | 17542 Pleasant Grove Rd | Yarmouth | IA | 52660 |
| Kaser Corporation-Coppock Quarry | 319-653-3270 | 2271-320th Wayland | Washington | IA | 52353 |
| Kuhlman Construction Co | 319-856-3535 | 325 Main | Colesburg | IA | 52035 |
| Lansing Art Lime & Rock | 319-875-8536 | 410 12th St NE | Dyersville | IA | 52040 |
| Linwood Mining & Minerals Corp Scale House | 319-324-3062 | 4321 E 60th St | Davenport | IA | 52807 |
| Mccausland Plant | 319-285-9230 | 18965 300th St | Long Grove | IA | 52756 |
| Mcdonough Quarry | 319-422-3044 | 7234 Filmore Rd | West Union | IA | 52175 |
| Miller Quarry | 319-334-6559 | 2400 King Av | Independence | IA | 50644 |
| New Liberty Quarry | 319-843-2627 | RR | Stockton | IA | 52769 |
| Niemann Paul Construction Co | 319-578-3261 | Hwy 93 E | Sumner | IA | 50674 |
| Niemann Paul Construction Co Shop | 319-578-3263 | 24541 150 St | Sumner | IA | 50674 |
| River City Stone Mathy Construction Quarry | 319-583-7518 | 19068 Herber Rd | Dubuque | IA | 52001 |
| River City Stone Mathy Quarry | 319-582-6764 | 12567 English Mill Rd | Dubuque | IA | 52003 |
| Vulcan Materials | 319-455-2121 | Lisbon Quarries | Lisbon | IA | 52253 |
| Vulcan Materials Co Cedar Rapids Quarry | 319-362-5317 | 4950 26th St SW | Cedar Rapids | IA | 52404 |
| Wendling Quarries Inc South Clinton Quarry | 319-259-8368 | Hwy 67 | Camanche | IA | 52730 |
| Yearous Paul Trucking | 319-934-3734 | 2538 Quasqueton Diagonal Blvd | Independence | IA | 50644 |
