Allied Plastics LLC | Twin Lakes | 100–499 | ● ACTIVE |
| AFAmcor Films | Oshkosh | 100–499 | ● ACTIVE |
Bay View Industries, INC | Oak Creek | 100–499 | ● ACTIVE |
| CCCornerstone Composites INC | Milwaukee | 20–99 | ● ACTIVE |
Corrim Company Frp LLC | Oshkosh | 20–99 | ● ACTIVE |
| CPCustom Pultrusions INC | Baraboo | 20–99 | ● ACTIVE |
| ECEcc Corrosion INC | Wisconsin Rapids | 20–99 | ● ACTIVE |
| FGF G Products, INC | Rice Lake | 20–99 | ● ACTIVE |
Fibeco CORP | Sheboygan Falls | 1–19 | ● ACTIVE |
Five Star Fabricating, INC. | Twin Lakes | — | ● ACTIVE |
Glenroy INC | Menomonee Falls | 100–499 | ● ACTIVE |
Inpro CORP | Muskego | 500+ | ● ACTIVE |
Kaysun Corporation | Manitowoc | 100–499 | ● ACTIVE |
Lakeside Plastics, INC. | Oshkosh | 100–499 | ● ACTIVE |
Milwaukee Composites, INC. | Cudahy | 100–499 | ● ACTIVE |
| MDMolded Dimensions | Port Washington | 20–99 | ● ACTIVE |
| TFTekni-plex Flexibles | Madison | 20–99 | ● ACTIVE |
The Prestwick Group, INC. | Sussex | 100–499 | ● ACTIVE |
Tjm Innovations LLC | Milwaukee | — | ● ACTIVE |
Wisconsin Plastics INC | Green Bay | 100–499 | ● ACTIVE |
| 5S5 Star Plastics | Eau Claire | 100–499 | ● ACTIVE |
| AHAmcor Healthcare Packaging INC - New London | New London | 100–499 | ● ACTIVE |
Broker Manufacturing LLC | Franklin | — | ● ACTIVE |
Carron Net Company, INC. | Two Rivers | 20–99 | ● ACTIVE |
Ci-dell Plastics INC. | Mequon | 20–99 | ● ACTIVE |
| CPCommercial Plastics Kenosha LLC | Kenosha | 100–499 | ● ACTIVE |
Converting Technology, INC. | Milwaukee | — | ● ACTIVE |
Custom Fiberglass Molding, INC. | Weyauwega | — | ● ACTIVE |
Dynatect Manufacturing, INC. | New Berlin | — | ● ACTIVE |
Federal Foam Technologies INC | New Richmond | — | ● ACTIVE |
Flambeau, INC. | Baraboo | — | ● ACTIVE |
| FPF&m Plastics, INC. | Osceola | 20–99 | ● ACTIVE |
Injectec, INC | Saukville | 20–99 | ● ACTIVE |
| IUIRIS USA, Inc. WI | Pleasant Prairie | 100–499 | ● ACTIVE |
Jifram Extrusions, INC. | Sheboygan Falls | — | ● ACTIVE |
Letourneau Plastics, INC. | Oconto | 20–99 | ● ACTIVE |
| MPMidwest Precision Molding, INC | Lake Geneva | 20–99 | ● ACTIVE |
| NPNicolet Plastics INC | Mountain | 20–99 | ● ACTIVE |
Phillips-medisize, LLC | Hudson | — | ● ACTIVE |
Placon Corporation | Fitchburg | — | ● ACTIVE |
Prototek Digital Manufacturing (madison) LLC | Blue Mounds | — | ● ACTIVE |
Reynolds Packaging LLC | Green Bay | — | ● ACTIVE |
Robin Ii, LLC | Markesan | — | ● ACTIVE |
Abx Innovative Packaging Solutions LLC | Rhinelander | — | ● ACTIVE |
Autana Composites, LLC | Milwaukee | — | ● ACTIVE |
Custom Fabricating & Supply, INC. | Franklin | — | ● ACTIVE |
Dapper Cadaver LLC | Madison | — | ● ACTIVE |
Dielectric Manufacturing INC | Richfield | — | ● ACTIVE |
| EFEngineered Fiberglass Composites, INC | New Lisbon | — | ● ACTIVE |
| EPEVCO Plastics - AMP | De Forest | 20–99 | ● ACTIVE |