| GIGuhring INC | Brookfield | WI | Fabricated Metal Product Manufacturing332721 | — | ◇ UNVERIFIED |
| GAGulfstream Aerospace Corporation | Appleton | WI | Transportation Equipment Manufacturing336400 | — | ◇ UNVERIFIED |
| HIHamlin INC | Lake Mills | WI | Computer and Electronic Product Manufacturing334118 | — | ◇ UNVERIFIED |
| HCHammerblow Corporation | Wausau | WI | Fabricated Metal Product Manufacturing332990 | — | ◇ UNVERIFIED |
| HIHandschy Industries LLC | Menomonee Falls | WI | Chemical Manufacturing325910 | — | ◇ UNVERIFIED |
| HAHard and Soft Fishing INC | Fort Atkinson | WI | Miscellaneous Manufacturing339920 | — | ◇ UNVERIFIED |
| HDHarley Davidson Motor CO | Wauwatosa | WI | Transportation Equipment Manufacturing336350 | — | ◇ UNVERIFIED |
| HMHarley-davidson Motor Co- Industrial Park Facility | Tomahawk | WI | Transportation Equipment Manufacturing336390 | — | ◇ UNVERIFIED |
| HPHb Performance Systems Inc-es875 | Mequon | WI | Transportation Equipment Manufacturing336340 | — | ◇ UNVERIFIED |
| HCH C Miller CO | Green Bay | WI | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| HAHealy Awards INC | Menomonee Falls | WI | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| HIHeattek INC West Allis | West Allis | WI | Machinery Manufacturing333131 | — | ◇ UNVERIFIED |
| HIHelgesen Industries INC | Hartford | WI | Fabricated Metal Product Manufacturing332420 | — | ◇ UNVERIFIED |
| HTHenkel Technologies | Oak Creek | WI | Chemical Manufacturing325520 | — | ◇ UNVERIFIED |
| HGHm Graphics INC | Milwaukee | WI | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| HCHoffers's Coatings , INC. | Wausau | WI | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| HIHologic INC | Madison | WI | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| HJHoward Johnsons Enterprises INC | Viroqua | WI | Chemical Manufacturing325310 | — | ◇ UNVERIFIED |
| HAHowell Ave Milwaukee Distribution Center | Oak Creek | WI | Fabricated Metal Product Manufacturing332000 | — | ◇ UNVERIFIED |
| HIHufcor, INC. | Janesville | WI | Primary Metal Manufacturing331200 | — | ◇ UNVERIFIED |
| HWHurd Windows & Doors INC | Merrill | WI | Wood Product Manufacturing321911 | — | ◇ UNVERIFIED |
 Husco International INC | Waukesha | WI | Fabricated Metal Product Manufacturing332912 | — | ◇ UNVERIFIED |
| HCHydrite Chemical CO | Milwaukee | WI | Food Manufacturing311421 | — | ◇ UNVERIFIED |
| HCHydrite Chemical CO | Oshkosh | WI | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| HCHydrite Chemical CO | Wausau | WI | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| ICImpact Confections | Janesville | WI | Food Manufacturing311340 | — | ◇ UNVERIFIED |
| ICIndustrial Coils | Baraboo | WI | Computer and Electronic Product Manufacturing334416 | — | ◇ UNVERIFIED |
| IEIngersoll Equipment CO | Winneconne | WI | Machinery Manufacturing333112 | — | ◇ UNVERIFIED |
| IGInland Graphics, LLC | Menomonee Falls | WI | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| ICInpro CORP | Menomonee Falls | WI | Plastics and Rubber Products Manufacturing326100 | — | ◇ UNVERIFIED |
| ICInpro CORP | New Berlin | WI | Plastics and Rubber Products Manufacturing326191 | — | ◇ UNVERIFIED |
| IIIn'tech Industries | Racine | WI | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| ISInterior Systems | Fond Du Lac | WI | Furniture and Related Product Manufacturing337120 | — | ◇ UNVERIFIED |
| ICIntermet CORP - Racine Plt (former) | Sturtevant | WI | Primary Metal Manufacturing331520 | — | ◇ UNVERIFIED |
| IIInternational Ingredients CORP | Monroe | WI | Food Manufacturing311119 | — | ◇ UNVERIFIED |
| IPInternational Paper | Fond Du Lac | WI | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| IPInternational Paper CO Pluswood Div | Oshkosh | WI | Wood Product Manufacturing321200 | — | ◇ UNVERIFIED |
| IIInx International Ink CO | Milwaukee | WI | Chemical Manufacturing325910 | — | ◇ UNVERIFIED |
| ILIsola Laminates INC. | La Crosse | WI | Computer and Electronic Product Manufacturing334419 | — | ◇ UNVERIFIED |
| IEItw Engineered Fastener Div | Chippewa Falls | WI | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| IGItw Graphics | Plymouth | WI | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| INIvi North INC Plant 3 | Greenville | WI | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| JRJack Richeson & CO INC | Kimberly | WI | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| JLJacob Leinenkugel Brewing CO. | Chippewa Falls | WI | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| JPJacobson Paint Finishes LLC | Manitowoc | WI | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| JGJanesville-sackner Group | Janesville | WI | Textile Mills313230 | — | ◇ UNVERIFIED |
| JCJbt CORP | Mequon | WI | Nonmetallic Mineral Product Manufacturing327990 | — | ◇ UNVERIFIED |
| JJci/tyco | Marinette | WI | Chemical Manufacturing325990 | — | ◇ UNVERIFIED |
| JHJeld-wen Hawkins Window Division | Hawkins | WI | Wood Product Manufacturing321910 | — | ◇ UNVERIFIED |
| JLJ L Di Coat CO INC | Sheboygan | WI | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
