| PCPella Corporation - Sioux Center | Sioux Center | 100–499 | ● ACTIVE |
 United States Gypsum CO - Fort Dodge | Fort Dodge | 100–499 | ● ACTIVE |
| UGUS Gypsum - Sperry Plant | Mediapolis | 100–499 | ● ACTIVE |
 Fca LLC | Davenport | — | ● ACTIVE |
 Walsh Door & Hardware CO. | Des Moines | — | ● ACTIVE |
| CCCelotex CORP Gypsum Recycling-ft Dodge | Fort Dodge | — | ◐ LIKELY ACTIVE |
| IWIowa Wood Preservers INC | Oskaloosa | — | ◐ LIKELY ACTIVE |
| KFKendrick Forest Products | Edgewood | 20–99 | ◐ LIKELY ACTIVE |
| PCPella CORP Carroll Operations | Carroll | 500+ | ◐ LIKELY ACTIVE |
| PCPella Corporation - Pella Division | Pella | — | ◐ LIKELY ACTIVE |
| WCWoodharbor Custom Cabinetry | Mason City | — | ◐ LIKELY ACTIVE |
| VIV-t Industries of Iowa Inc-holstein | Holstein | — | ◇ UNVERIFIED |
| BLBatey Limited | Mount Pleasant | — | ◇ UNVERIFIED |
| AMAdvance Millwork INC | North Liberty | 20–99 | ◐ LIKELY ACTIVE |
| ASAmana Society, INC. Dba Cedar Rapids Mil | Hiawatha | — | ◐ LIKELY ACTIVE |
| BLBruggeman Lumber Inc | Hopkinton | 20–99 | ◐ LIKELY ACTIVE |
| CMCascade Mfg. CO. | Pleasantville | 20–99 | ◐ LIKELY ACTIVE |
| CRCedar Rapids Millwork | Hiawatha | 20–99 | ◐ LIKELY ACTIVE |
| EWEagle Window & Door INC. | Dubuque | — | ◐ LIKELY ACTIVE |
| GMGreystone Manufacturing LLC. | Bettendorf | 100–499 | ◐ LIKELY ACTIVE |
| HMHeartland Millwork | Larchwood | 1–19 | ◐ LIKELY ACTIVE |
| LHLiberty Hardwoods INC | Ankeny | — | ◐ LIKELY ACTIVE |
| MMMoehl Millwork INC - Administrative Id # Only | Ankeny | — | ◐ LIKELY ACTIVE |
| RIRonan Industries, INC. | Waterloo | 20–99 | ◐ LIKELY ACTIVE |
| TITasler INC | Webster City | 20–99 | ◐ LIKELY ACTIVE |
| TDTrustile Doors - Northwood | Northwood | 100–499 | ◐ LIKELY ACTIVE |
| WWWindsor Windows & Doors | West Des Moines | 100–499 | ◐ LIKELY ACTIVE |
| AAAll American Homes of Iowa LLC | Dyersville | — | ◇ UNVERIFIED |
| BFBrand Fx Body Co-manson | Manson | — | ◇ UNVERIFIED |
| CMCalmar Manufacturing Company INC | Calmar | — | ◇ UNVERIFIED |
| CTChamness Technologies | Eddyville | — | ◇ UNVERIFIED |
| CRChep Recycled Pallet Solutions LLC | Cedar Rapids | — | ◇ UNVERIFIED |
| EWEagle Window & Door INC | Dubuque | — | ◇ UNVERIFIED |
| EPEnergy Panel Structures INC | Graettinger | — | ◇ UNVERIFIED |
| HPHarvey Pallets, INC | West Des Moines | — | ◇ UNVERIFIED |
| HWHawkeye Woodshavings INC | Pleasant Hill | — | ◇ UNVERIFIED |
| HFHeartland Finishes INC | Des Moines | — | ◇ UNVERIFIED |
| JIJeld-wen, INC - Dba Doorcraft of Iowa - Grinnell | Grinnell | — | ◇ UNVERIFIED |
| JIJeld-wen, INC - Dba Jeld-wen - Dubuque | Dubuque | — | ◇ UNVERIFIED |
| JIJeld-wen INC - Grinnell | Grinnell | — | ◇ UNVERIFIED |
| MCMasonite Corporation | Mason City | — | ◇ UNVERIFIED |
| MCMasonite Corporation | Mason City | — | ◇ UNVERIFIED |
| MMMonarch Mfg CO | Adel | — | ◇ UNVERIFIED |
| OLOldcastle Lawn & Garden | Oskaloosa | — | ◇ UNVERIFIED |
| PCPella Corp-carroll Div | Carroll | — | ◇ UNVERIFIED |
| PCPella Corporation | Shenandoah | — | ◇ UNVERIFIED |
| PCPella Corporation - Story City Division | Story City | — | ◇ UNVERIFIED |
| PCPella Corp-shenandoah Div | Shenandoah | — | ◇ UNVERIFIED |
| PLPierce Lumber INC | Belle Plaine | — | ◇ UNVERIFIED |
| SCSmith Cabinet Works | Dyersville | — | ◇ UNVERIFIED |
