| ADAdvanced Drainage System | Oelwein | IA | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| ADAdvanced Drainage System Hancor, INC. | Oelwein | IA | Plastics and Rubber Products Manufacturing326191 | — | ◇ UNVERIFIED |
 Advanced Machine, LLC | Council Bluffs | IA | Machinery Manufacturing333518 | — | ◇ UNVERIFIED |
| AGAdvance Garage Doors, INC. | Marshalltown | IA | Fabricated Metal Product Manufacturing332321 | — | ◇ UNVERIFIED |
| AUAfinitas US INC | New Hampton | IA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| APAg Processing, INC - Sheldon | Sheldon | IA | Food Manufacturing311224 | — | ◇ UNVERIFIED |
| AMAgristar Meat & Poultry LLC | Postville | IA | Food Manufacturing311611 | — | ◇ UNVERIFIED |
| ACAgritronics CORP. | Elkhart | IA | Food Manufacturing311119 | — | ◇ UNVERIFIED |
| APA&i Products | Rock Valley | IA | Machinery Manufacturing333111 | — | ◇ UNVERIFIED |
| APAir Products and Chemicals Inc—bettendorf Nitrogen Plant Located Within Arconic | Bettendorf | IA | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| APAir Products and Chemicals INC - Co2 Recovery Plant | Council Bluffs | IA | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| APAir Products and Chemicals, INC. Co2 Recovery Plant | Nevada | IA | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| AMAlaniz Metrogroup, LLC | Mount Pleasant | IA | Printing and Related Support Activities323119 | — | ◇ UNVERIFIED |
| ACAlcast Company Midwest Works LLC | Fairfield | IA | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| AIAllan Industrial Coatings | Allison | IA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| AIAllsteel INC. (systems Complex) | Muscatine | IA | Furniture and Related Product Manufacturing337214 | — | ◇ UNVERIFIED |
| ATAlphaHD Trailers | Oelwein | IA | Transportation Equipment Manufacturing336212 | — | ◇ UNVERIFIED |
| ASAmbassador Steel Corporation | Newton | IA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| AAAmerican Armature, INC. | Durant | IA | Transportation Equipment Manufacturing336322 | — | ◇ UNVERIFIED |
| ACAmerican Colloid Co-waterloo | Waterloo | IA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| ACAmerican Concrete Products - Algona | Algona | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| AHAmwood Homes | Toledo | IA | Wood Product Manufacturing321992 | — | ◇ UNVERIFIED |
| AKAmy's Kitchen INC. - Pocatello | Pocatello | IA | Food Manufacturing311412 | — | ◇ UNVERIFIED |
| ACAndersen Corporation | Des Moines | IA | Wood Product Manufacturing321911 | — | ◇ UNVERIFIED |
| ADAnderson Dubuque Operations | Dubuque | IA | Wood Product Manufacturing321911 | — | ◇ UNVERIFIED |
| AHAnderson Heemstra, LLC | Des Moines | IA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| APAndrew's Prestressed Concrete | Clear Lake | IA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| AIApc INC. | Boone | IA | Food Manufacturing311119 | — | ◇ UNVERIFIED |
| AWAqua Waste Water Eaters | Richland | IA | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
| AMArch Mirror North | Bettendorf | IA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| AWArcosa Wind Towers, INC. - Newton | Newton | IA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| AAAssa Abloy Door Group LLC | Mason City | IA | Wood Product Manufacturing321911 | — | ◇ UNVERIFIED |
| AMAssociated Materials Incorporated | Cedar Rapids | IA | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| AOAWOL Outdoors, Inc. | Albia | IA | Transportation Equipment Manufacturing336214 | — | ◇ UNVERIFIED |
| AMAz Manufacturing & Sales | Lamoni | IA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| BLB5Branding LLC | Ames | IA | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
| BSBae Systems Information and Electronic Systems Integration INC | Cedar Rapids | IA | Computer and Electronic Product Manufacturing334220 | — | ◇ UNVERIFIED |
| BSBae Systems Information and Electronic Systems Integration INC | Coralville | IA | Computer and Electronic Product Manufacturing334220 | — | ◇ UNVERIFIED |
| BPBagcraft Packaging, LLC | Fort Madison | IA | Paper Manufacturing322220 | — | ◇ UNVERIFIED |
| BSBarker Speciality Products - Centerville | Centerville | IA | Furniture and Related Product Manufacturing337215 | — | ◇ UNVERIFIED |
| BDB & D Manufacturing, INC. | Scranton | IA | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| BSBench Solution, INC. | Hiawatha | IA | Machinery Manufacturing333243 | — | ◇ UNVERIFIED |
| BPBerry Plastics Corporation | Bettendorf | IA | Plastics and Rubber Products Manufacturing326111 | — | ◇ UNVERIFIED |
| BIBest Impressions, Inc. | Urbandale | IA | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| BGBilt Guitars, LLC | Des Moines | IA | Miscellaneous Manufacturing339992 | — | ◇ UNVERIFIED |
| BCBiomechanical Composites Inc. | Des Moines | IA | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
| BCBissinger's Chocolate | Iowa City | IA | Food Manufacturing311330 | — | ◇ UNVERIFIED |
| BCBituma Corporation | Marquette | IA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| BDBlackbird Design and Print LLC | Nevada | IA | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| BLBlue Lakes Ammo | Spencer | IA | Fabricated Metal Product Manufacturing332993 | — | ◇ UNVERIFIED |
