| GFGraves Forestry, Inc. | Mount Ayr | — | ◇ UNVERIFIED |
| IIIrwin INC. | De Witt | — | ◇ UNVERIFIED |
| JWJeld Wen Windows | Grinnell | — | ◇ UNVERIFIED |
| JKJesse Klein Enterprises LLC | Ellsworth | — | ◇ UNVERIFIED |
| JCJk Creative Wood | Kalona | — | ◇ UNVERIFIED |
| LSLumber Specialities LTD. | Story City | — | ◇ UNVERIFIED |
| LSLumber Specialties LTD | Dyersville | — | ◇ UNVERIFIED |
| MAM and M Workshop LLC | Council Bluffs | — | ◇ UNVERIFIED |
| MMMidwest Manufacturing, a Division of Menards | Marshalltown | — | ◇ UNVERIFIED |
| MPMidwest Pallet and Recycling | Des Moines | — | ◇ UNVERIFIED |
| PPPanacea Products | Mount Ayr | — | ◇ UNVERIFIED |
| PCPella Corporation - Carroll Division | Carroll | — | ◇ UNVERIFIED |
| PLPine Lake Lumber, INC. | Eldora | — | ◇ UNVERIFIED |
| PBPremier Backyard Brands, INC. | De Witt | — | ◇ UNVERIFIED |
| PNProbuild North LLC Dba Timber Roots Mtd | New Hampton | — | ◇ UNVERIFIED |
| RPReliable Pallet Co., INC. | Bettendorf | — | ◇ UNVERIFIED |
| SMSawmill Management, INC | Mount Pleasant | — | ◇ UNVERIFIED |
| SSShelter Superstore | Des Moines | — | ◇ UNVERIFIED |
| SCSmi CO. | Cresco | — | ◇ UNVERIFIED |
| SSmico | Cresco | — | ◇ UNVERIFIED |
| SMSmith Mill Work | Dubuque | — | ◇ UNVERIFIED |
| SPSpecial Packaging, INC. Dba Palleton of Iowa | Osceola | — | ◇ UNVERIFIED |
| SMSpur Millwork INC. | Marion | — | ◇ UNVERIFIED |
| SGSteffes, Gene | Manning | — | ◇ UNVERIFIED |
| SCStructural Component Systems, INC. | Boone | — | ◇ UNVERIFIED |
| SBSwanson Big Timber INC. | Vinton | — | ◇ UNVERIFIED |
| TRTimber Roots Mtd | Hawarden | — | ◇ UNVERIFIED |
| TWTraeger Wood Pallet Grills LLC | Mount Pleasant | — | ◇ UNVERIFIED |
| ULUS Lbm | Dyersville | — | ◇ UNVERIFIED |
| VHVolrath Hardwoods LLC | Camanche | — | ◇ UNVERIFIED |
| VAVti Architectural Products | Holstein | — | ◇ UNVERIFIED |
| WLWestwind Logistics, LLC | Story City | — | ◇ UNVERIFIED |
| WLWestwind Logistics, LLC | Des Moines | — | ◇ UNVERIFIED |
| WSWilliam Shirbroun | Moorland | — | ◇ UNVERIFIED |
| WCWood Components & Technologies | Cedar Falls | — | ◇ UNVERIFIED |
