 Osi Environmental INC | Kaukauna | — | ◇ UNVERIFIED |
| PTPAK Technologies Holding Company Inc. | Milwaukee | — | ◇ UNVERIFIED |
| PCPerformance Coatings, LLC | Oconomowoc | — | ◇ UNVERIFIED |
| PPPrecision Powder, LLC | Appleton | — | ◇ UNVERIFIED |
| PPPrecision Powder, LLC | Greenville | — | ◇ UNVERIFIED |
| PCPress Color, INC. | Glendale | — | ◇ UNVERIFIED |
| PPrinsco | Appleton | — | ◇ UNVERIFIED |
| PSProactive Solutions Usa, LLC - De Pere | De Pere | — | ◇ UNVERIFIED |
| PLProchemicals LLC De Pere | De Pere | — | ◇ UNVERIFIED |
| PCPromega Corporation - 5500 Nobel | Fitchburg | — | ◇ UNVERIFIED |
| PKPromega - Kornberg Center | Madison | — | ◇ UNVERIFIED |
| PCPurple Cow Organics, LLC | Verona | — | ◇ UNVERIFIED |
| RAResearch and Development Center (rdc) | Madison | — | ◇ UNVERIFIED |
| RPReturn Processing Center LLC | Oconto | — | ◇ UNVERIFIED |
| RHRJK Holdings LLC | Ixonia | — | ◇ UNVERIFIED |
| RCRolite CO | Hartland | — | ◇ UNVERIFIED |
| RDRust-oleum Dba Multicolor Specialties INC | Waupun | — | ◇ UNVERIFIED |
| SISafc INC | Madison | — | ◇ UNVERIFIED |
| SBSandhill Bach Rng Facility | Dorchester | — | ◇ UNVERIFIED |
| SFSandhill Five Star Rng | Elk Mound | — | ◇ UNVERIFIED |
 Schwabe North America | Green Bay | — | ◇ UNVERIFIED |
| SPScientific Protein Labs INC | Waunakee | — | ◇ UNVERIFIED |
 Shine Technologies Building One | Janesville | — | ◇ UNVERIFIED |
| Shine Technologies Casseopia | Janesville | — | ◇ UNVERIFIED |
| Shine Technologies Heliopolis | Madison | — | ◇ UNVERIFIED |
| Shine Technologies Moly Plant | Janesville | — | ◇ UNVERIFIED |
| Shine Technologies - Townline Warehouse | Beloit | — | ◇ UNVERIFIED |
| SGSiegfried Grafton INC. | Grafton | — | ◇ UNVERIFIED |
| SASigma Aldrich CO LLC | Milwaukee | — | ◇ UNVERIFIED |
| SSpartech | Kohler | — | ◇ UNVERIFIED |
| SPSpartech Plastics | Sheboygan Falls | — | ◇ UNVERIFIED |
| SSS & S Coatings INC | New Richmond | — | ◇ UNVERIFIED |
| SSS & S Coatings INC / Plant 2 | Osceola | — | ◇ UNVERIFIED |
| SPStatewide Powder Coating LLC | New London | — | ◇ UNVERIFIED |
| SStratatech | Madison | — | ◇ UNVERIFIED |
| SCSummit Clinical Laboratories | Brookfield | — | ◇ UNVERIFIED |
| SISyncro INC | Milwaukee | — | ◇ UNVERIFIED |
| TITherma-flite, INC. | Baldwin | — | ◇ UNVERIFIED |
| TVThe Valspar Corporation | Menomonee Falls | — | ◇ UNVERIFIED |
| TWThird Wave Technologies | Madison | — | ◇ UNVERIFIED |
| TWThird Wave Technologies INC | Sun Prairie | — | ◇ UNVERIFIED |
| TWTotal Water Treatment Systems, INC | Madison | — | ◇ UNVERIFIED |
| TSTrade Show Channel, LLC | Evansville | — | ◇ UNVERIFIED |
| TITrowelon INC | Oneida | — | ◇ UNVERIFIED |
| TLTuma LLC | Elmwood | — | ◇ UNVERIFIED |
| TTTundra Targeted Therapeutics, Inc. | Shorewood | — | ◇ UNVERIFIED |
| ULUas Labs LLC | Wausau | — | ◇ UNVERIFIED |
| URUnlimited Renewables, LLC | Lake Mills | — | ◇ UNVERIFIED |
| USU S Energy Rng Deer Run | Kewaunee | — | ◇ UNVERIFIED |
| USU S Energy Rng Facility Clover Hill | Ashford | — | ◇ UNVERIFIED |
