| Nate's Lawn Maintenance, Inc. WI | Administrative & Waste Services | 0 | — | A |
| Natech Plastics Inc. NY | Manufacturing | 0 | — | F |
| Natel Energy Holdings, Inc. CA | Manufacturing | 1 | $134,150 | — |
| Naten LLC TX | Professional & Technical Services | 10 | $94,208 | — |
| Natera, Inc. CA | Professional & Technical Services | 39 | $133,739 | — |
| Natera, Inc. TX | — | 0 | — | — |
| Nath Management Services Inc. MN | Accommodation & Food Services | 1 | $61,589 | — |
| Nathan Adelson Hospice NV | Healthcare & Social Assistance | 0 | — | F |
| Nathan Detroit's NE | — | 0 | — | — |
| Nathan H. Kelman, Inc. NY | Wholesale Trade | 0 | — | D |
| Nathan Littauer Hospital & Nursing Home NY | Healthcare & Social Assistance | 0 | — | F |
| Nathan Littauer Hospital and Nursing Home NY | Healthcare & Social Assistance | 0 | — | F |
| Nathan Miller Center for Nursing Care NY | — | 0 | — | — |
| Nathan Naill, LLC CO | Mining & Extraction | 0 | — | F |
| Nathan Trotter & Co PA | Manufacturing | 0 | — | F |
| Nathan's Famous, Inc. NY | — | 0 | — | — |
| Nathaniel House, Inc. KY | Healthcare & Social Assistance | 0 | — | A |
| Nathel & Nathel, Inc NY | Wholesale Trade | 0 | — | F |
| Natilik Inc NY | Professional & Technical Services | 1 | $92,040 | — |
| Natina Products, LLC. AZ | Construction | 0 | — | F |
| Natiolan Express LLC DBA Durham School Services MO | — | 0 | — | — |
| Nation OH | Healthcare & Social Assistance | 0 | — | D |
| Nation Ford Chemical Company SC | Manufacturing | 0 | — | A |
| Nation Holdings Inc. NE | Wholesale Trade | 0 | — | F |
| Nation Pizza & Foods IL | Manufacturing | 0 | — | A |
| Nation Pizza and Foods KS | — | 0 | — | — |
| Nation Waste, Inc. TX | Administrative & Waste Services | 0 | — | F |
| Nation Water Infrastructure LA | Utilities | 0 | — | F |
| Nation's Mini Mix, Inc. OR | Construction | 0 | — | F |
| National 42nd St. Realty Inc./TGI Friday's Restaurant, Tim Horton's/KFC Food Court NY | — | 0 | — | — |
| National Academy of Recording Arts & Sciences, Inc. CA | Other Services | 1 | $99,632 | — |
| National Account Service Company LLC GA | Information & Media | 1 | $147,971 | — |
| National Aerospace Solutions, LLC CA | — | 0 | — | — |
| National Aerospace Solutions, LLC (NAS) CA | — | 0 | — | — |
| National Aerospace Solutions, LLC (NAS) TN | — | 0 | — | — |
| National Aerospace Solutions, LLC (NAS) - - Tunnel 9 Facility MD | — | 0 | — | — |
| National Air & Energy CA | Construction | 0 | — | F |
| National Air Cargo Group, Inc. FL | Transportation & Warehousing | 1 | $249,600 | — |
| NATIONAL AIR CHARTERS FL | Transportation & Warehousing | 1 | $65,000 | — |
| National Air Filter Service Co. of New Jersey, Inc. NJ | Wholesale Trade | 0 | — | D |
| National Airlines MI | — | 0 | — | — |
| NATIONAL AIRPORT SERVICES FL | Transportation & Warehousing | 2 | $117,500 | — |
| NATIONAL APARTMENT FLOORING CA | Construction | 0 | — | F |
| National Aquarium MD | Arts & Entertainment | 0 | — | B |
| National Association of Children's Hospitals and Related Institutions, Inc. KS | Other Services | 1 | $109,000 | — |
| National Association of Dental Plans TX | Other Services | 0 | — | A |
| National Association of Insurance Commissioners MO | Other Services | 1 | $76,932 | — |
| National Association of Water Companies PA | Public Administration | 0 | — | A |
| National Association Supply Cooperative, Inc. OH | Wholesale Trade | 0 | — | A |
| National Audio Company MO | Manufacturing | 0 | — | A |
