| AWArcosa Wind Towers, INC. | Newton | IA | Fabricated Metal Product Manufacturing332312 | 100-499 | ◐ LIKELY ACTIVE |
| CVClow Valve Company - Machine Shop | Oskaloosa | IA | Fabricated Metal Product Manufacturing332911 | 100-499 | ◐ LIKELY ACTIVE |
| FEFeldmeier Equipment INC | Shell Rock | IA | Fabricated Metal Product Manufacturing332420 | 20-99 | ◐ LIKELY ACTIVE |
| GMGiese Manufacturing | Dubuque | IA | Fabricated Metal Product Manufacturing332322 | 20-99 | ◐ LIKELY ACTIVE |
| HAHearth and Home Technologies INC | Mount Pleasant | IA | Fabricated Metal Product Manufacturing332322 | 100-499 | ◐ LIKELY ACTIVE |
| ISIowa Steel & Wire CO INC | Centerville | IA | Primary Metal Manufacturing331222 | 20-99 | ◐ LIKELY ACTIVE |
| LILemar Industries CORP | Des Moines | IA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| LCLisle CORP | Clarinda | IA | Fabricated Metal Product Manufacturing332212 | 100-499 | ◐ LIKELY ACTIVE |
| MWModern Welding CO of Iowa INC | Burlington | IA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| NCNsk Corporation | Clarinda | IA | Fabricated Metal Product Manufacturing332991 | 100-499 | ◐ LIKELY ACTIVE |
| PAPaxton and Vierling Steel | Carter Lake | IA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| PPPrecision Pulley & Idler Inc-pella | Pella | IA | Fabricated Metal Product Manufacturing332312 | 100-499 | ◐ LIKELY ACTIVE |
Rie Coatings INC | Dubuque | IA | Fabricated Metal Product Manufacturing332812 | 1-19 | ◐ LIKELY ACTIVE |
| S1Seabee - 1st St - Hampton Hydraulics | Hampton | IA | Fabricated Metal Product Manufacturing332813 | — | ◐ LIKELY ACTIVE |
| TMThe Maquoketa CO | Maquoketa | IA | Fabricated Metal Product Manufacturing332911 | 20-99 | ◐ LIKELY ACTIVE |
| BTBachman Tool & Die Company | Independence | IA | Fabricated Metal Product Manufacturing332721 | 20-99 | ◐ LIKELY ACTIVE |
| BUBorghi USA INC | West Burlington | IA | Fabricated Metal Product Manufacturing332813 | 20-99 | ◐ LIKELY ACTIVE |
| CSCorn States Metal Fabricators INC | West Des Moines | IA | Primary Metal Manufacturing331313 | 20-99 | ◐ LIKELY ACTIVE |
| CDCurries Division of Aadg, INC - 12th St Nw | Mason City | IA | Fabricated Metal Product Manufacturing332321 | — | ◐ LIKELY ACTIVE |
| EIEast Iowa Machine Company (eimco) | Farley | IA | Fabricated Metal Product Manufacturing332710 | 100-499 | ◐ LIKELY ACTIVE |
| EEEmco Enterprises | Des Moines | IA | Fabricated Metal Product Manufacturing332321 | 20-99 | ◐ LIKELY ACTIVE |
| GCGomaco CORP. - Plant 1 | Ida Grove | IA | Fabricated Metal Product Manufacturing332999 | 100-499 | ◐ LIKELY ACTIVE |
| GCGomaco CORP. - Plant 2 | Ida Grove | IA | Fabricated Metal Product Manufacturing332999 | 100-499 | ◐ LIKELY ACTIVE |
Husco International | Maquoketa | IA | Fabricated Metal Product Manufacturing332912 | — | ◐ LIKELY ACTIVE |
Iowa Steel Treating, INC. | Bettendorf | IA | Primary Metal Manufacturing331111 | — | ◐ LIKELY ACTIVE |
| KEKeystone Electrical Manufacturing INC | Des Moines | IA | Fabricated Metal Product Manufacturing332322 | 100-499 | ◐ LIKELY ACTIVE |
| KCKooima CO | Rock Valley | IA | Fabricated Metal Product Manufacturing332312 | 100-499 | ◐ LIKELY ACTIVE |
Liberty Pattern Company, INC. | New Liberty | IA | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| QMQuality Manufacturing CORP - Urbandale | Urbandale | IA | Fabricated Metal Product Manufacturing332322 | — | ◐ LIKELY ACTIVE |
| RLRelco Locomotives INC | Cedar Rapids | IA | Fabricated Metal Product Manufacturing332322 | 20-99 | ◐ LIKELY ACTIVE |
Sabre Communications CORP | Sioux City | IA | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| SGSiouxland Galvanizing | Sioux City | IA | Fabricated Metal Product Manufacturing332812 | — | ◐ LIKELY ACTIVE |
Steffensmeier Welding & Manufacturing INC | Pilot Grove | IA | Fabricated Metal Product Manufacturing332313 | — | ◐ LIKELY ACTIVE |
| UAUS Army Iowa Army Ammunition Plant | Middletown | IA | Fabricated Metal Product Manufacturing332993 | — | ◐ LIKELY ACTIVE |
| VIVulcan Industries | Missouri Valley | IA | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
| WIWaterloo Industries INC | Waterloo | IA | Plastics and Rubber Products Manufacturing326199 | 20-99 | ◐ LIKELY ACTIVE |
Advanced Heat Treat CORP | Waterloo | IA | Fabricated Metal Product Manufacturing332811 | — | ◐ LIKELY ACTIVE |
| CSCaptiveaire Systems INC | West Union | IA | Fabricated Metal Product Manufacturing332322 | — | ◐ LIKELY ACTIVE |
| CBChicago Bridge Iron Incorporated | Clive | IA | Fabricated Metal Product Manufacturing332313 | — | ◐ LIKELY ACTIVE |
| ISIowa Specialties | Cedar Rapids | IA | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| STSnap-on Tools Manufacturing Company | Algona | IA | Fabricated Metal Product Manufacturing332439 | — | ◐ LIKELY ACTIVE |
| AMAcro Manufacturing CORP. | Cedar Rapids | IA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| BIBuckaroos, INC. | Nevada | IA | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
| CICollis INC. | Clinton | IA | Fabricated Metal Product Manufacturing332618 | 100-499 | ◐ LIKELY ACTIVE |
| CPConstruction Products INC. | Des Moines | IA | Fabricated Metal Product Manufacturing332312 | 100-499 | ◐ LIKELY ACTIVE |
| CLCsi Limited | Burlington | IA | Fabricated Metal Product Manufacturing332812 | — | ◐ LIKELY ACTIVE |
| CCurries | Mason City | IA | Fabricated Metal Product Manufacturing332321 | 500+ | ◐ LIKELY ACTIVE |
| CDCurries Div of Aadg INC | Mason City | IA | Fabricated Metal Product Manufacturing332321 | — | ◐ LIKELY ACTIVE |
| EWEagel Window & Door INC. | Dubuque | IA | Fabricated Metal Product Manufacturing332321 | — | ◐ LIKELY ACTIVE |
| FIFabricators, INC. | Sioux City | IA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |