Behnke Enterprises, INC | Farley, IA | Transportation Equipment Manufacturing336212 | 100–499 | ● ACTIVE |
| PPProgressive Processing LLC | Dubuque, IA | Food Manufacturing311611 | 100–499 | ● ACTIVE |
The Adams Company | Dubuque, IA | Machinery Manufacturing333612 | — | ● ACTIVE |
| TMThe Metrix Company | Dubuque, IA | Miscellaneous Manufacturing339112 | 20–99 | ● ACTIVE |
Colors, INC | Dubuque, IA | Textile Product Mills314999 | — | ● ACTIVE |
Hanger Prosthetics & Orthotics East, INC. | Dubuque, IA | Miscellaneous Manufacturing339113 | — | ● ACTIVE |
New Revolution Tools, LLC | Farley, IA | Fabricated Metal Product Manufacturing332999 | — | ● ACTIVE |
| GMGiese Manufacturing | Dubuque, IA | Fabricated Metal Product Manufacturing332322 | 20–99 | ◐ LIKELY ACTIVE |
| JDJohn Deere Dubuque Works | Dubuque, IA | Machinery Manufacturing333111 | 500+ | ◐ LIKELY ACTIVE |
| MBMorrison Brothers Company | Dubuque, IA | Primary Metal Manufacturing331524 | 1–19 | ◐ LIKELY ACTIVE |
| PFPrairie Farms-dubuque | Dubuque, IA | Food Manufacturing311511 | 100–499 | ◐ LIKELY ACTIVE |
Rie Coatings INC | Dubuque, IA | Fabricated Metal Product Manufacturing332812 | 1–19 | ◐ LIKELY ACTIVE |
| ADApc Dubuque | Dubuque, IA | Food Manufacturing311119 | 20–99 | ◐ LIKELY ACTIVE |
| BEBodine Electric CO | Peosta, IA | Electrical Equipment, Appliance & Component Manufacturing335312 | 100–499 | ◐ LIKELY ACTIVE |
| CPCustom Precast CO | Cascade, IA | Nonmetallic Mineral Product Manufacturing327320 | 20–99 | ◐ LIKELY ACTIVE |
| EIEast Iowa Machine Company (eimco) | Farley, IA | Fabricated Metal Product Manufacturing332710 | 100–499 | ◐ LIKELY ACTIVE |
| ECEdwards Cast Stone Company | Dubuque, IA | Nonmetallic Mineral Product Manufacturing327390 | 20–99 | ◐ LIKELY ACTIVE |
Western Dubuque Biodiesel, LLC | Farley, IA | Chemical Manufacturing325199 | — | ◐ LIKELY ACTIVE |
| FHFlint Hills Resources Pine Bend LLC - Dubuque Terminal | Dubuque, IA | Petroleum and Coal Products Manufacturing324121 | — | ◐ LIKELY ACTIVE |
| AYA Y Mcdonald Mfg CO - Dubuque Facility | Dubuque, IA | Fabricated Metal Product Manufacturing332911 | — | ◇ UNVERIFIED |
| DSDubuque Stamping & Manufacturing INC | Dubuque, IA | Fabricated Metal Product Manufacturing332111 | — | ◇ UNVERIFIED |
| MIModernfold, INC | Dyersville, IA | Furniture and Related Product Manufacturing337215 | — | ◇ UNVERIFIED |
Banvue Point International, INC | Dubuque, IA | Computer and Electronic Product Manufacturing334516 | — | ◐ LIKELY ACTIVE |
Farber Bag & Supply CO | Peosta, IA | Plastics and Rubber Products Manufacturing326111 | — | ◐ LIKELY ACTIVE |
| APAdvanced Pump & Equipment INC | Peosta, IA | Machinery Manufacturing333911 | 20–99 | ◐ LIKELY ACTIVE |
| AMAmerican-iowa Manufacturing, INC. | Cascade, IA | Machinery Manufacturing333111 | 20–99 | ◐ LIKELY ACTIVE |
| DIDubuque Ia Bakery | Dubuque, IA | Food Manufacturing311812 | 100–499 | ◐ LIKELY ACTIVE |
| EWEagel Window & Door INC. | Dubuque, IA | Fabricated Metal Product Manufacturing332321 | — | ◐ LIKELY ACTIVE |
| EWEagle Window & Door INC. | Dubuque, IA | Wood Product Manufacturing321911 | — | ◐ LIKELY ACTIVE |
| FUF.h. Uelner Precision Tools and Dies, INC. | Dubuque, IA | Machinery Manufacturing333514 | 20–99 | ◐ LIKELY ACTIVE |
| ITInventory Trading Company | Peosta, IA | Textile Product Mills314999 | 20–99 | ◐ LIKELY ACTIVE |
| MCMichelin - Camso Manufacturing USA, LTD | Peosta, IA | Machinery Manufacturing333111 | 100–499 | ◐ LIKELY ACTIVE |
| MCMi-t-m Corporation | Peosta, IA | Fabricated Metal Product Manufacturing332812 | — | ◐ LIKELY ACTIVE |
| RDRousselot Dubuque INC. | Dubuque, IA | Chemical Manufacturing325411 | 20–99 | ◐ LIKELY ACTIVE |
| TITomy International | Dyersville, IA | Miscellaneous Manufacturing339932 | — | ◐ LIKELY ACTIVE |
| IFInnocor Foam Technologies (formerly Advanced Urethane Technologies) | Dubuque, IA | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| NVNew Vienna Metal Works INC | New Vienna, IA | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| AAAll American Homes of Iowa LLC | Dyersville, IA | Wood Product Manufacturing321992 | — | ◇ UNVERIFIED |
| AGArctic Glacier Premium Ice | Dubuque, IA | Beverage and Tobacco Product Manufacturing312113 | — | ◇ UNVERIFIED |
| BIBarnstead International | Dubuque, IA | Computer and Electronic Product Manufacturing334516 | — | ◇ UNVERIFIED |
| CMCamso Manufacturing USA LTD | Peosta, IA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| DDDyersville Die Cast | Dyersville, IA | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| EWEagle Window & Door INC | Dubuque, IA | Wood Product Manufacturing321911 | — | ◇ UNVERIFIED |
| FCFlynn CO INC - Dubuque | Dubuque, IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| FIFrommelt Industries INC | Dubuque, IA | Fabricated Metal Product Manufacturing332321 | — | ◇ UNVERIFIED |
| HIHigley Industries | Dubuque, IA | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| JIJeld-wen, INC - Dba Jeld-wen - Dubuque | Dubuque, IA | Wood Product Manufacturing321219 | — | ◇ UNVERIFIED |
| KCKey City Plating | Dubuque, IA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| QWQuebecor World Dubuque INC | Dubuque, IA | Printing and Related Support Activities323117 | — | ◇ UNVERIFIED |
| RTRegency Thermographers | Dubuque, IA | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |