| Nelson Brothers LLC KY | Manufacturing | 0 | — | C |
| Nelson Brothers LLC WV | Manufacturing | 0 | — | A |
| Nelson Brothers Mining Services, LLC WY | Manufacturing | 0 | — | A |
| Nelson Brothers Trucking OR | Transportation & Warehousing | 0 | — | D |
| Nelson Bumgardner Conroy P.C. TX | Professional & Technical Services | 1 | $160,000 | — |
| Nelson Carlson Mechanical IL | Construction | 0 | — | D |
| Nelson Company of Kentucky KY | Manufacturing | 0 | — | F |
| Nelson County Board of Education KY | Educational Services | 6 | $54,085 | — |
| Nelson County Fiscal Court KY | Construction | 0 | — | F |
| Nelson County Health System ND | Healthcare & Social Assistance | 1 | $70,720 | — |
| Nelson Dental ND | Healthcare & Social Assistance | 0 | — | A |
| Nelson Electric Co IA | Construction | 0 | — | F |
| Nelson Electric Co. LC IA | Construction | 0 | — | F |
| Nelson Electric Company Inc. NV | Construction | 0 | — | A |
| Nelson Electric LLC ID | Construction | 0 | — | D |
| Nelson Electric, Inc. WA | Construction | 0 | — | F |
| Nelson Engineering Construction Inc. NE | Construction | 0 | — | A |
| Nelson Family Vineyards CA | Manufacturing | 0 | — | A |
| Nelson Global IN | Manufacturing | 0 | — | A |
| Nelson Global NC | Other Services | 0 | — | B |
| Nelson Global WI | Manufacturing | 0 | — | F |
| Nelson Global Products IN | Manufacturing | 0 | — | F |
| Nelson Global Products, Inc. WI | Manufacturing | 1 | $95,000 | A |
| Nelson Hardwood Lumber Co., Inc. WI | Manufacturing | 0 | — | A |
| NELSON INDUSTRIAL SERVICES, INC. OK | Construction | 0 | — | A |
| Nelson Insulation Co IL | Construction | 0 | — | F |
| Nelson Insulation Company- Central States IL | Construction | 0 | — | F |
| Nelson Insulation Company- Colorado IL | Construction | 0 | — | A |
| Nelson Insulation Company- Wisconsin IL | Construction | 0 | — | A |
| Nelson International of Bismarck ND | Retail Trade | 0 | — | A |
| Nelson International of East Grand Forks MN | Other Services | 0 | — | A |
| Nelson Irrigation Corporation WA | Manufacturing | 1 | $90,000 | F |
| Nelson Laboratories MT | — | 0 | — | — |
| Nelson Laboratories LLC NJ | — | 0 | — | — |
| Nelson Laboratories, Inc. UT | Professional & Technical Services | 1 | $144,003 | — |
| Nelson Leasing INC dba Nelson International ND | Other Services | 0 | — | A |
| Nelson Leasing Inc. MN | Retail Trade | 0 | — | B |
| Nelson Mandela Elementary, Inc. NE | Educational Services | 0 | — | F |
| Nelson Manufacturing Company OH | Manufacturing | 0 | — | F |
| Nelson Mfg. Co., Inc. CA | Manufacturing | 0 | — | F |
| Nelson Mill and Agri Center Inc WI | Retail Trade | 0 | — | A |
| Nelson Mullins Riley & Scarborough LLP SC | Professional & Technical Services | 4 | $185,987 | — |
| Nelson Name Plate Company CA | Manufacturing | 0 | — | A |
| Nelson Name Plate Company WI | Manufacturing | 0 | — | F |
| Nelson Nursery MN | Agriculture & Forestry | 0 | — | F |
| Nelson Pipeline CO | Construction | 0 | — | F |
| Nelson Pipeline Constructors, LLC CO | Construction | 0 | — | A |
| Nelson Property Services ME | Administrative & Waste Services | 0 | — | F |
| Nelson Sash Systems, Inc. IL | Construction | 0 | — | F |
| Nelson Service Group, Inc. AL | Construction | 0 | — | A |
