| WCWhiskey Creek Farms | Lawton | IA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| WSWilton Steel Processing | Wilton | IA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| WMWoodbine Mfg CO | Woodbine | IA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| AMAdvance Machine Technologies | Johnston | IA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| AKAinley Kennels & Fabrication, INC. | Dubuque | IA | Fabricated Metal Product Manufacturing332322 | — | ◐ LIKELY ACTIVE |
| AAAlfagomma America Inc. | Burlington | IA | Fabricated Metal Product Manufacturing332912 | 20-99 | ◐ LIKELY ACTIVE |
| AWAndersen Windows and Doors - Dubuque, IA. | Dubuque | IA | Fabricated Metal Product Manufacturing332321 | 500+ | ◐ LIKELY ACTIVE |
| AMAronson Manufacturing, LLC | Low Moor | IA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| AAAyia02-aymi-aym - Albia | Albia | IA | Fabricated Metal Product Manufacturing332911 | 20-99 | ◐ LIKELY ACTIVE |
| CLCadorath, LLC | Bettendorf | IA | Fabricated Metal Product Manufacturing332114 | 20-99 | ◐ LIKELY ACTIVE |
| CPCamanche Plant | Camanche | IA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| CVCherry Valley Auto LLC | Guttenberg | IA | Fabricated Metal Product Manufacturing332313 | — | ◐ LIKELY ACTIVE |
| CFCL Fabrication Inc | Clarinda | IA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| CWCo-Line Welding, Inc. | Lynnville | IA | Fabricated Metal Product Manufacturing332710 | 100-499 | ◐ LIKELY ACTIVE |
| C1Company 1 | Anamosa | IA | Fabricated Metal Product Manufacturing332322 | 100-499 | ◐ LIKELY ACTIVE |
| CHCompany Headquarters | Pella | IA | Fabricated Metal Product Manufacturing332312 | 100-499 | ◐ LIKELY ACTIVE |
Cope Plastics Inc Cedar Rapids | Hiawatha | IA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| CBCornerstone Building Brands - Metal Solutions | Mount Pleasant | IA | Fabricated Metal Product Manufacturing332311 | 100-499 | ◐ LIKELY ACTIVE |
| CCCrown Cork & Seal USA, Inc. - Dubuque Plant | Dubuque | IA | Fabricated Metal Product Manufacturing332431 | 20-99 | ◐ LIKELY ACTIVE |
| DFDakota Fluid Power Omaha | Council Bluffs | IA | Fabricated Metal Product Manufacturing332912 | 1-19 | ◐ LIKELY ACTIVE |
| DPDecker Precision Machining, INC. | Peosta | IA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| DED. E. I. Inc | Hiawatha | IA | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
| DDDirect Design and Fabrication | Council Bluffs | IA | Fabricated Metal Product Manufacturing332439 | 20-99 | ◐ LIKELY ACTIVE |
| DMDls Machining & Fabrication LLC | New London | IA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| DIDrake-Williams Iowa | Council Bluffs | IA | Fabricated Metal Product Manufacturing332812 | 1-19 | ◐ LIKELY ACTIVE |
| DCDSMMP Contech Engineered Solutions LLC | Ankeny | IA | Fabricated Metal Product Manufacturing332322 | 1-19 | ◐ LIKELY ACTIVE |
| DSD & S Sheetmetal, Inc. | Cedar Rapids | IA | Fabricated Metal Product Manufacturing332322 | 20-99 | ◐ LIKELY ACTIVE |
| DDubuque | Dubuque | IA | Fabricated Metal Product Manufacturing332431 | 20-99 | ◐ LIKELY ACTIVE |
| DSDubuque Screw Products | Dubuque | IA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| DSDubuque Steel Products | Dubuque | IA | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
| ESEgging SM LLC | Clinton | IA | Fabricated Metal Product Manufacturing332313 | 20-99 | ◐ LIKELY ACTIVE |
| EEEMCO Enterprises LLC, Andersen Storm Door Division | Des Moines | IA | Fabricated Metal Product Manufacturing332321 | 100-499 | ◐ LIKELY ACTIVE |
| GDGregory Design and Manufacturing | Fort Madison | IA | Fabricated Metal Product Manufacturing332313 | 20-99 | ◐ LIKELY ACTIVE |
| HMHawkeye Metal Spinning | Jessup | IA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| HMHeartland Machine & Tool, INC | New Hartford | IA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| IDInfastech, Decorah MFG (IND, EF) Emhart Tecknologies LLC | Decorah | IA | Fabricated Metal Product Manufacturing332722 | 100-499 | ◐ LIKELY ACTIVE |
| JMJ Machining & Fabrication LLC | Tabor | IA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| KWKey West Metal Industries Incorporated-Iowa | Livermore | IA | Fabricated Metal Product Manufacturing332322 | 1-19 | ◐ LIKELY ACTIVE |
| KMKness Manufacturing | Albia | IA | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
| KAKooima Ag, Inc. | Rock Valley | IA | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
| KCKPI Concepts- Plant #2 | West Burlington | IA | Fabricated Metal Product Manufacturing332510 | 20-99 | ◐ LIKELY ACTIVE |
| LILeMar Industries-SHE | Sheffield | IA | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
| LILimado, INC | Sioux City | IA | Fabricated Metal Product Manufacturing332618 | — | ◐ LIKELY ACTIVE |
| MCMacArthur Company - Energy Panel Structures IA | Graettinger | IA | Fabricated Metal Product Manufacturing332311 | 100-499 | ◐ LIKELY ACTIVE |
| MMertz | Webster City | IA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| MLMetalMax, LLC Iowa | Cherokee | IA | Fabricated Metal Product Manufacturing332322 | 1-19 | ◐ LIKELY ACTIVE |
| MMMid-States Material Handling & Fabrication, Inc. | Nevada | IA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| MCMill Creek Machining | Paullina | IA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| MGMiner - Grimes, IA | Grimes | IA | Fabricated Metal Product Manufacturing332321 | 1-19 | ◐ LIKELY ACTIVE |
| MBMorrison Bros. Mfg. | Dubuque | IA | Fabricated Metal Product Manufacturing332911 | 20-99 | ◐ LIKELY ACTIVE |