| National Colloid Co. OH | Manufacturing | 0 | — | F |
| National Commercial Warehouse OH | Transportation & Warehousing | 0 | — | A |
| National Compressor Services OH | Other Services | 0 | — | A |
| NATIONAL CONCRETE AND PAVING LLC FL | Construction | 0 | — | A |
| National Concrete Cutting, Inc. IA | Construction | 0 | — | A |
| National Conductor Constructors, LLC MN | Construction | 0 | — | A |
| National Coney Island MI | Accommodation & Food Services | 0 | — | F |
| National Conference Center VA | — | 0 | — | — |
| National Consolidation Services IL | Transportation & Warehousing | 0 | — | A |
| National Construction and Remediation CA | Construction | 0 | — | F |
| National Construction Enterprises, Inc. MI | Construction | 0 | — | C |
| National Consulting Group Inc NJ | Professional & Technical Services | 4 | $102,716 | — |
| National Control Devices, LLC MO | Manufacturing | 0 | — | A |
| National Cooperative Bank, N.A. VA | Finance & Insurance | 1 | $133,900 | — |
| National Copper & Smelting Co AL | — | 0 | — | — |
| National Copper and Smelting Co. TN | — | 0 | — | — |
| National Copper LLC AL | Manufacturing | 0 | — | A |
| NATIONAL COPPER, LLC. DBA NATIONAL COPPER AND SMELTING TN | Manufacturing | 0 | — | F |
| National Corset Supply House CA | Manufacturing | 0 | — | C |
| National Corvette Museum KY | Arts & Entertainment | 0 | — | A |
| National Council for Mental Wellbeing DC | Public Administration | 0 | — | A |
| National Council of State Boards of Nursing, Inc. IL | Other Services | 2 | $128,844 | — |
| National Council of the US Society of St Vincent de Paul MO | Retail Trade | 0 | — | F |
| National Credit Services TX | — | 0 | — | — |
| National DCP, LLC AZ | Wholesale Trade | 0 | — | F |
| National DCP, LLC CT | Wholesale Trade | 0 | — | F |
| National DCP, LLC FL | Wholesale Trade | 0 | — | F |
| National DCP, LLC GA | Wholesale Trade | 1 | $201,981 | F |
| National DCP, LLC IL | Wholesale Trade | 0 | — | F |
| National DCP, LLC MA | Wholesale Trade | 0 | — | F |
| National DCP, LLC NC | Wholesale Trade | 0 | — | F |
| National DCP, LLC NJ | Wholesale Trade | 0 | — | F |
| National DCP, LLC NY | Wholesale Trade | 0 | — | F |
| National DCP, LLC OH | Wholesale Trade | 0 | — | F |
| National DCP, LLC BELLINGHAM, MA DISTRIBUTION CENTER MA | Wholesale Trade | 0 | — | F |
| National DCP, LLC EAST WINDSOR, CT HUB CT | Wholesale Trade | 0 | — | F |
| National DCP, LLC GREENSBORO DISTRIBUTION CENTER NC | Wholesale Trade | 0 | — | F |
| National DCP, LLC GROVELAND DISTRIBUTION CENTER FL | Wholesale Trade | 0 | — | F |
| National DCP, LLC LOCKPORT, IL DISTRIBUTION CENTER IL | Wholesale Trade | 0 | — | F |
| National DCP, LLC MCDONOUGH DISTRIBUTION CENTER GA | Wholesale Trade | 0 | — | F |
| National DCP, LLC NY DISTRIBUTION CENTER NY | Wholesale Trade | 0 | — | F |
| National DCP, LLC PHOENIX, AZ DISTRIBUTION CENTER AZ | Wholesale Trade | 0 | — | D |
| National DCP, LLC TWINSBURG, OH DISTRIBUTION CENTER OH | Wholesale Trade | 0 | — | F |
| National DCP, LLC WESTAMPTON DISTRIBUTION CENTER NJ | Wholesale Trade | 0 | — | F |
| National Debt Relief LLC NY | Finance & Insurance | 1 | $187,461 | — |
| National Distribution Centers LLC CO | Transportation & Warehousing | 0 | — | A |
| National Distribution Centers LLC NJ | Transportation & Warehousing | 0 | — | B |
| National Distribution Centers LLC NV | Transportation & Warehousing | 0 | — | A |
| National Distribution Centers LLC WI | Transportation & Warehousing | 0 | — | A |
| National Distribution Centers, LLC CA | Transportation & Warehousing | 0 | — | A |
