| KLKcng, LLC | Waterloo | IA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| OLOldcastle Lawn & Garden | Waterloo | IN | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| PJPerry Judds INC | Waterloo | WI | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| QMQuality Mat CO INC | Waterloo | IA | Miscellaneous Manufacturing339920 | — | ◇ UNVERIFIED |
| RCRoskamp Champion | Waterloo | IA | Machinery Manufacturing333111 | — | ◇ UNVERIFIED |
| SSSyngenta Seeds INC | Waterloo | NE | Food Manufacturing311223 | — | ◇ UNVERIFIED |
| THTarjac H2o LLC | Waterloo | NY | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| TBTrek Bicycle CORP | Waterloo | WI | Transportation Equipment Manufacturing336990 | — | ◇ UNVERIFIED |
| AMAbE Manufacturing | Waterloo | WI | Food Manufacturing311999 | — | ◐ LIKELY ACTIVE |
| CBCrave Brothers Farmstead Cheese | Waterloo | WI | Food Manufacturing311513 | 20-99 | ◐ LIKELY ACTIVE |
| CDCrystal Distribution Services, Inc. | Waterloo | IA | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| DIDC Industries | Waterloo | IA | Machinery Manufacturing333111 | 20-99 | ◐ LIKELY ACTIVE |
| JWJD Waterloo Tractor Operations | Waterloo | IA | Machinery Manufacturing333111 | 500+ | ◐ LIKELY ACTIVE |
| LDLake Drum Brewing | Waterloo | NY | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| MCMuranda Cheese Company | Waterloo | NY | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| NINucor Insulated Panel Group - Waterloo | Waterloo | IN | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
| RARanews AIC Waterloo | Waterloo | IA | Fabricated Metal Product Manufacturing332812 | 1-19 | ◐ LIKELY ACTIVE |
| RCRanews Companies - Waterloo | Waterloo | IA | Fabricated Metal Product Manufacturing332812 | 20-99 | ◐ LIKELY ACTIVE |
| STSCB Transport | Waterloo | IA | Furniture and Related Product Manufacturing337110 | 20-99 | ◐ LIKELY ACTIVE |
| SESchoitz Engineering Inc. | Waterloo | IA | Machinery Manufacturing333514 | 20-99 | ◐ LIKELY ACTIVE |
| SLSchorr Lake Vineyard, INC. | Waterloo | IL | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| SMShamrock Meat Processing LLC | Waterloo | NE | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| SMSTLD2 - Midwest Block | Waterloo | IL | Nonmetallic Mineral Product Manufacturing327331 | 1-19 | ◐ LIKELY ACTIVE |
| SIStrategic Imaging | Waterloo | IA | Printing and Related Support Activities323111 | 20-99 | ◐ LIKELY ACTIVE |
| TITasler Inc Waterloo | Waterloo | IA | Wood Product Manufacturing321920 | 1-19 | ◐ LIKELY ACTIVE |
| TBTreppenhaus Brewing | Waterloo | IA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| VKVerve Kombucha | Waterloo | IA | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| WWaterloo | Waterloo | IN | Wood Product Manufacturing321999 | 20-99 | ◐ LIKELY ACTIVE |
| WIWaterloo, IA | Waterloo | IA | Food Manufacturing311511 | 1-19 | ◐ LIKELY ACTIVE |
| WPWaterloo Plant | Waterloo | IN | Nonmetallic Mineral Product Manufacturing327331 | 20-99 | ◐ LIKELY ACTIVE |
| OPOmega Products INC | Waterloo | IL | Fabricated Metal Product Manufacturing332321 | — | ◐ LIKELY ACTIVE |
| DMD&g Metal Works, INC | Waterloo | IA | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| EFEmpire Foundry Production & Reclaim | Waterloo | IA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| ACAmerican Colloid Co-waterloo | Waterloo | IA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| BIBriess Industries, INC. | Waterloo | WI | Food Manufacturing311213 | — | ◇ UNVERIFIED |
| CSConcrete Supply LLC | Waterloo | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CCCreative Concepts Custom Cabinetry LLC | Waterloo | NE | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| CICriterion, INC. | Waterloo | IA | Machinery Manufacturing333512 | — | ◇ UNVERIFIED |
| EOEcocentric Oils Incorporated | Waterloo | IN | Petroleum and Coal Products Manufacturing324110 | — | ◇ UNVERIFIED |
| EFEdsco Fasteners | Waterloo | IN | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| GCGreystone Crematory LLC | Waterloo | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| HLH2Owners LLC | Waterloo | WI | Machinery Manufacturing333999 | — | ◇ UNVERIFIED |
| HCHeartland Castings Incorporated | Waterloo | IN | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| I6Industry 63, LLC | Waterloo | IA | Machinery Manufacturing333511 | — | ◇ UNVERIFIED |
| JDJohn Deere Foundry | Waterloo | IA | Machinery Manufacturing333111 | — | ◇ UNVERIFIED |
| JDJohn Deere Waterloo Operations | Waterloo | IA | Machinery Manufacturing333111 | — | ◇ UNVERIFIED |
| JMJordan Machinery Company Inc. | Waterloo | NE | Machinery Manufacturing333999 | — | ◇ UNVERIFIED |
| MEMarro's Equipment & Trucks INC. | Waterloo | NY | Transportation Equipment Manufacturing336211 | — | ◇ UNVERIFIED |
| MSM&M Swag and Stich, Inc. | Waterloo | WI | Apparel Manufacturing315990 | — | ◇ UNVERIFIED |
| MRMoore Recycling Concrete & Asphalt LLC | Waterloo | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |