| N. G. Purvis Farms, Inc. NC | Agriculture & Forestry | 0 | — | F |
| N. J. Supermarket South Inc. OH | Retail Trade | 0 | — | A |
| N. Jonas & Co., Inc PA | Manufacturing | 0 | — | F |
| N. Leasing Company, LLC CA | Administrative & Waste Services | 0 | — | A |
| N. Wassesrstrom & Sons AZ | Manufacturing | 0 | — | F |
| N. Wassesrstrom & Sons OH | Manufacturing | 0 | — | F |
| N. Wassesrstrom & Sons SC | Manufacturing | 0 | — | B |
| N. Wassesrstrom & Sons TX | Manufacturing | 0 | — | D |
| N. Zobrist & Sons, Inc. IL | Construction | 0 | — | F |
| N.A. Degerstrom ID | — | 0 | — | — |
| N.A. Degerstrom, Inc. WA | Construction | 0 | — | D |
| N.A. Favia Builders, Inc. d/b/a Alpine Acoustics IL | Construction | 0 | — | F |
| N.A. Industries Inc. TN | — | 0 | — | — |
| N.A. Manosh, Inc. VT | Utilities | 0 | — | F |
| N.B. HANDY COMPANY FL | Wholesale Trade | 0 | — | A |
| N.B. HANDY COMPANY GA | Wholesale Trade | 0 | — | A |
| N.B. HANDY COMPANY MD | Wholesale Trade | 0 | — | F |
| N.B. HANDY COMPANY NC | Wholesale Trade | 0 | — | B |
| N.B. HANDY COMPANY SC | Wholesale Trade | 0 | — | A |
| N.B. HANDY COMPANY VA | Wholesale Trade | 0 | — | C |
| N.B. Rogers, Inc. PA | Construction | 0 | — | B |
| N.C. Hunt Inc ME | Manufacturing | 0 | — | F |
| N.E.T.R., Inc. MA | Construction | 0 | — | F |
| N.E.W. Industries WI | Manufacturing | 0 | — | F |
| N.E.W. Plastics Corp OH | Manufacturing | 0 | — | A |
| N.E.W. Plastics Corp PA | Manufacturing | 0 | — | A |
| N.E.W. Plastics Corp WI | Manufacturing | 0 | — | C |
| N.E.W. Plastics Corp - Fulcrum MN | Manufacturing | 0 | — | F |
| N.E.W. Plastics Corp - Renew GB WI | Manufacturing | 0 | — | A |
| N.E.W. Plastics Corp - Renew Luxemburg WI | Manufacturing | 0 | — | F |
| N.E.W. Plastics Corp - SP Warehouse WI | Transportation & Warehousing | 0 | — | A |
| N.F Smith & Associates, L.P. TX | Wholesale Trade | 1 | $60,800 | — |
| N.F String & Son Inc PA | Manufacturing | 0 | — | F |
| N.F. Mansuetto & Sons, Inc. OH | Construction | 0 | — | B |
| N.F. Smith & Associates, L.P. TX | Wholesale Trade | 2 | $99,287 | — |
| N.H. Scheppers Distributing Company, Inc MO | Wholesale Trade | 0 | — | F |
| N.J. Malin and Associates, LLC LA | Other Services | 0 | — | D |
| N.J.Malin and Associates, LLC TX | Other Services | 0 | — | F |
| N.K.S. Distributors DE | Wholesale Trade | 0 | — | F |
| N.L. Construction Corporation OH | Construction | 0 | — | A |
| N.R.G. Heating and Air Conditioning Services, LLC CA | Construction | 0 | — | A |
| N.S. International, Ltd. MI | Wholesale Trade | 5 | $119,858 | — |
| N.U. Insulation, Inc. IN | Construction | 0 | — | A |
| N.U.Yoga Ashrama in America WI | Agriculture & Forestry | 0 | — | F |
| N.V. Heathorn Company CA | Construction | 0 | — | A |
| N/A AZ | Healthcare & Social Assistance | 0 | — | A |
| N/A CA | Professional & Technical Services | 0 | — | A |
| N/A GA | Manufacturing | 0 | — | A |
| N/A ID | Healthcare & Social Assistance | 0 | — | A |
| N/A IL | Administrative & Waste Services | 0 | — | B |
