| Northwestern Mfg PA | Manufacturing | 0 | — | F |
| Northwestern Michigan College - 28999 - 3900340 MI | Educational Services | 0 | — | A |
| Northwestern Minnesota Juvenile Center MN | Public Administration | 0 | — | F |
| Northwestern Mutual Life Insurance Company WI | Finance & Insurance | 70 | $134,962 | — |
| Northwestern Ohio Foam Packaging OH | Manufacturing | 0 | — | F |
| Northwestern Roofing Co., Inc. PA | Construction | 0 | — | A |
| Northwestern State University of Louisiana LA | Educational Services | 1 | $53,040 | — |
| Northwestern Tools Inc OH | Manufacturing | 0 | — | A |
| Northwestern University IL | Educational Services | 169 | $104,589 | — |
| Northwestern Wisconsin Electric Company WI | Construction | 0 | — | A |
| Northwind Solar WI | Utilities | 0 | — | F |
| NorthWind Technical Services LLC KS | Professional & Technical Services | 1 | $102,898 | — |
| Northwinds Technology Solutions LLC VA | Information & Media | 2 | $95,275 | — |
| Northwire Inc NM | Manufacturing | 0 | — | F |
| Northwire Inc WI | Manufacturing | 0 | — | F |
| Northwood Cabinets Inc. WA | Manufacturing | 0 | — | F |
| Northwood Childrens Home Society, Inc. D/B/A Northwood Children's Services MN | Healthcare & Social Assistance | 0 | — | F |
| Northwood Childrens Home Society, Inc. dba Northwood Children's Services MN | Healthcare & Social Assistance | 0 | — | F |
| Northwood Construction Co., Inc. PA | Construction | 0 | — | F |
| NORTHWOOD DEACONESS HEALTH CENTER ND | Healthcare & Social Assistance | 0 | — | F |
| Northwood Global Solutions LLC. MD | Professional & Technical Services | 0 | — | A |
| Northwood Global Solutions LLC. VA | Professional & Technical Services | 0 | — | A |
| Northwood Health Care OH | Healthcare & Social Assistance | 0 | — | F |
| Northwood HealthCare OH | Healthcare & Social Assistance | 0 | — | F |
| Northwood Healthcare Group LLC NJ | Healthcare & Social Assistance | 1 | $71,136 | — |
| Northwood Hospitality NC | Accommodation & Food Services | 0 | — | F |
| Northwood Industrial Machinery, Inc. KY | Manufacturing | 0 | — | F |
| Northwood Industries, Inc. OH | Manufacturing | 0 | — | F |
| Northwood Investors LLC CO | Real Estate | 1 | $200,000 | — |
| Northwood Manufacturing Inc OR | Manufacturing | 0 | — | C |
| Northwood University TX | — | 0 | — | — |
| northwoods ford dba ford of hibbing MN | Retail Trade | 0 | — | D |
| Northwoods Inc of Wisconsin WI | Healthcare & Social Assistance | 0 | — | A |
| Northwoods Lodge WA | Healthcare & Social Assistance | 0 | — | F |
| Northwoods Lumber Company MN | Retail Trade | 0 | — | C |
| Northwoods Mfg inc MI | Manufacturing | 0 | — | F |
| Northwoods Operations Associates LLC NY | Healthcare & Social Assistance | 0 | — | F |
| Northwoods Symphony IL | Healthcare & Social Assistance | 0 | — | A |
| Norton Audubon Hospital AUD KY | Healthcare & Social Assistance | 0 | — | F |
| Norton Brownsboro Hospital NBH KY | Healthcare & Social Assistance | 0 | — | F |
| Norton Children's Hospital NCH KY | Healthcare & Social Assistance | 0 | — | C |
| Norton Children's Medical Center NCMC KY | Healthcare & Social Assistance | 0 | — | F |
| Norton Energy Drilling TX | Mining & Extraction | 0 | — | F |
| Norton Environmental Inc. AZ | Administrative & Waste Services | 0 | — | F |
| Norton Healthcare IN | Healthcare & Social Assistance | 0 | — | F |
| Norton Healthcare KY | Healthcare & Social Assistance | 0 | — | C |
| Norton Hospital NOR KY | Healthcare & Social Assistance | 0 | — | F |
| Norton King's Daughters' Health IN | Healthcare & Social Assistance | 0 | — | F |
| Norton King's Daughters' Health KY | Healthcare & Social Assistance | 0 | — | F |
| Norton Lilly International AL | Wholesale Trade | 0 | — | A |
