| CLComo Lube & Supplies INC | Duluth | MN | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
| CMCompass Minerals | Duluth | MN | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| DBDuluth Brass Manufacturing INC | Duluth | MN | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| DSDuluth Superior Blacktop INC | Duluth | MN | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| EREquipment Rental CO | Duluth | MN | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| GBGarfield Builders | Duluth | MN | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| GDGeorgia-pacific - Duluth Hardboard | Duluth | MN | Wood Product Manufacturing321219 | — | ◇ UNVERIFIED |
| IIkonics | Duluth | MN | Chemical Manufacturing325992 | — | ◇ UNVERIFIED |
| NCNorthland Constructors of Duluth LLC - Metallic | Duluth | MN | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| NWNorthshore Wood Products | Duluth | MN | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| TTThe Tongue & Groove Store | Duluth | MN | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| AAAar - Aircraft Services Duluth | Duluth | MN | Transportation Equipment Manufacturing336411 | — | ◇ UNVERIFIED |
| ACAluminum Cabinet Company INC | Duluth | MN | Furniture and Related Product Manufacturing337124 | — | ◇ UNVERIFIED |
| APAmerican Precision Avionics INC | Duluth | MN | Electrical Equipment, Appliance & Component Manufacturing335931 | — | ◇ UNVERIFIED |
| APArrowhead Paint Products INC | Duluth | MN | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| ASAtelier & Stone, LLC | Duluth | MN | Miscellaneous Manufacturing339910 | — | ◇ UNVERIFIED |
| BLBailey.ing LLC | Duluth | MN | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| BIBendtec INC | Duluth | MN | Fabricated Metal Product Manufacturing332313 | — | ◇ UNVERIFIED |
| BPBent Paddle Brewing Company | Duluth | MN | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| BBBlacklist Beer LLC | Duluth | MN | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| CCCarlson Concrete Products INC | Duluth | MN | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| CACedar and Stone Nordic Sauna | Duluth | MN | Apparel Manufacturing315990 | — | ◇ UNVERIFIED |
| CDChildren's Dental Services | Duluth | MN | Miscellaneous Manufacturing339114 | — | ◇ UNVERIFIED |
 Cirrus Design Corporation Dba Cirrus Aircraft | Duluth | MN | Transportation Equipment Manufacturing336413 | — | ◇ UNVERIFIED |
| Cirrus Design Corporation Dba Cirrus Aircraft | Duluth | MN | Transportation Equipment Manufacturing336411 | — | ◇ UNVERIFIED |
| Cirrus Design Corporation Dba Cirrus Aircraft | Duluth | MN | Transportation Equipment Manufacturing336411 | — | ◇ UNVERIFIED |
 Clearwater Composites LLC | Duluth | MN | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| CDCrank & Dasher, LLC | Duluth | MN | Food Manufacturing311520 | — | ◇ UNVERIFIED |
| CCCustom Cap INC | Duluth | MN | Plastics and Rubber Products Manufacturing326212 | — | ◇ UNVERIFIED |
| DCDuluth Coffee Company Inc. | Duluth | MN | Food Manufacturing311999 | — | ◇ UNVERIFIED |
| DSDuluth Screen Printing Company, LLC | Duluth | MN | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
| DSDuluth Screen Printing Company, LLC | Duluth | MN | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
| DSDuluth Steel Fabricators INC | Duluth | MN | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| DTDuluth Timber Company INC | Duluth | MN | Wood Product Manufacturing321912 | — | ◇ UNVERIFIED |
| EAEnclosures and Cases INC | Duluth | MN | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| ECEpicurean Cutting Surfaces LLC | Duluth | MN | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| FFastenal | Duluth | MN | Transportation Equipment Manufacturing336411 | — | ◇ UNVERIFIED |
| FLFearless LLC | Duluth | MN | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
| FCForterra Concrete Products - Duluth | Duluth | MN | Nonmetallic Mineral Product Manufacturing327332 | — | ◇ UNVERIFIED |
| FCForum Communications Company Dba Forum Communicati | Duluth | MN | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
 Fraser Shipyards, INC. | Duluth | MN | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| GIGeaCom, Inc. | Duluth | MN | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
| GMGlass Merchants INC Dba Walsh Building Products | Duluth | MN | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| GWGranite Works INC | Duluth | MN | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| GLGreat Lakes Wood CO LLC | Duluth | MN | Wood Product Manufacturing321114 | — | ◇ UNVERIFIED |
| HSHow Sweet It Is Cakes LLC | Duluth | MN | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| HAHudyma and Hudyma INC Dba Scs Interiors | Duluth | MN | Transportation Equipment Manufacturing336360 | — | ◇ UNVERIFIED |
| HOHydrosolutions of Duluth INC | Duluth | MN | Transportation Equipment Manufacturing336413 | — | ◇ UNVERIFIED |
| ICIkonics Corporation - West | Duluth | MN | Chemical Manufacturing325992 | — | ◇ UNVERIFIED |
| JBJohnsons Baking - Sales INC | Duluth | MN | Food Manufacturing311811 | — | ◇ UNVERIFIED |
