Advanced Heat Treat CORP | Waterloo | IA | Fabricated Metal Product Manufacturing332811 | — | ● ACTIVE |
| CICedar Industries, INC | Waterloo | IA | Fabricated Metal Product Manufacturing332710 | — | ● ACTIVE |
Ama Works, INC | Waterloo | IA | Fabricated Metal Product Manufacturing332710 | — | ● ACTIVE |
| BSBlack Sheep Metal, LLC | Waterloo | IL | Fabricated Metal Product Manufacturing332323 | — | ● ACTIVE |
Freeman Custom Machining LLC | Waterloo | SC | Fabricated Metal Product Manufacturing332710 | — | ● ACTIVE |
Nelson Numeric, LLC | Waterloo | WI | Fabricated Metal Product Manufacturing332710 | — | ● ACTIVE |
| CMCharleston Metal Products INC | Waterloo | IN | Fabricated Metal Product Manufacturing332721 | 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 |
| FIFrazier Industrial CO | Waterloo | NY | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| JDJohn Deere Coating Service Center | Waterloo | IA | Fabricated Metal Product Manufacturing332812 | — | ◐ LIKELY ACTIVE |
| NBNucor Building Systems | Waterloo | IN | Fabricated Metal Product Manufacturing332311 | 500+ | ◐ LIKELY ACTIVE |
| RHRanews Hyper Drive | Waterloo | IA | Fabricated Metal Product Manufacturing332812 | 1-19 | ◐ LIKELY ACTIVE |
| THTarjac H20 LLC | Waterloo | NY | Fabricated Metal Product Manufacturing332812 | 20-99 | ◐ LIKELY ACTIVE |
| WEWelyn Enterprises | Waterloo | IA | Fabricated Metal Product Manufacturing332812 | — | ◐ LIKELY ACTIVE |
| IFIndustrial Fabrication & Machining INC | Waterloo | IA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| KLKcng, LLC | Waterloo | IA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| THTarjac H2o LLC | Waterloo | NY | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| NINucor Insulated Panel Group - Waterloo | Waterloo | IN | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
| OPOmega Products INC | Waterloo | IL | Fabricated Metal Product Manufacturing332321 | — | ◐ 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 |
| DMD&g Metal Works, INC | Waterloo | IA | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| EFEmpire Foundry Production & Reclaim | Waterloo | IA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| EFEdsco Fasteners | Waterloo | IN | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |