| 423450 | Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers | 161,065 | $1,540,986,144 |
| 311991 | Perishable Prepared Food Manufacturing | 135,859 | $443,703,965 |
| 424210 | Drugs and Druggists' Sundries Merchant Wholesalers | 93,791 | $601,537,603 |
| 444110 | Home Centers | 78,258 | $164,406,280 |
| 423850 | Service Establishment Equipment and Supplies Merchant Wholesalers | 67,420 | $1,267,857,306 |
| 311812 | Commercial Bakeries | 55,676 | $168,266,311 |
| 339940 | Office Supplies (except Paper) Manufacturing | 55,199 | $77,040,522 |
| 324110 | Petroleum Refineries | 52,233 | $3,460,544,584 |
| 332216 | Saw Blade and Handtool Manufacturing | 51,924 | $65,510,483 |
| 453210 | Office Supplies and Stationery Stores | 51,600 | $35,084,143 |
| 322230 | Stationery Product Manufacturing | 44,281 | $38,046,577 |
| 423710 | Hardware Merchant Wholesalers | 34,609 | $27,392,022 |
| 324191 | Petroleum Lubricating Oil and Grease Manufacturing | 31,887 | $49,669,653 |
| 493190 | Other Warehousing and Storage | 31,558 | $1,171,670,600 |
| 325411 | Medicinal and Botanical Manufacturing | 28,847 | $1,077,754,724 |
| 332510 | Hardware Manufacturing | 26,528 | $202,262,890 |
| 332722 | Bolt, Nut, Screw, Rivet, and Washer Manufacturing | 26,116 | $91,257,758 |
| 325520 | Adhesive Manufacturing | 26,013 | $22,100,054 |
| 444130 | Hardware Stores | 22,011 | $48,298,432 |
| 336111 | Automobile Manufacturing | 20,891 | $961,950,648 |
| 541519 | Other Computer Related Services | 17,748 | $49,156,195,620 |
| 311999 | All Other Miscellaneous Food Manufacturing | 15,469 | $670,366,283 |
| 336413 | Other Aircraft Parts and Auxiliary Equipment Manufacturing | 15,233 | $37,263,068,642 |
| 541330 | Engineering Services | 13,827 | $212,876,954,072 |
| 337214 | Office Furniture (except Wood) Manufacturing | 12,253 | $329,265,970 |
| 423840 | Industrial Supplies Merchant Wholesalers | 11,469 | $11,881,947 |
| 333618 | Other Engine Equipment Manufacturing | 11,096 | $465,086,784 |
| 236220 | Commercial and Institutional Building Construction | 10,095 | $111,855,830,206 |
| 541611 | Administrative Management and General Management Consulting Services | 9,389 | $28,363,887,175 |
| 561210 | Facilities Support Services | 9,001 | $392,006,819,894 |
| 311911 | Roasted Nuts and Peanut Butter Manufacturing | 8,788 | $51,367,170 |
| 541512 | Computer Systems Design Services | 8,752 | $108,514,623,136 |
| 541715 | Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) | 8,750 | $180,095,577,066 |
| 115310 | Support Activities for Forestry | 8,327 | $951,011,100 |
| 335912 | Primary Battery Manufacturing | 7,272 | $18,048,533 |
| 339113 | Surgical Appliance and Supplies Manufacturing | 7,201 | $753,206,160 |
| 326140 | Polystyrene Foam Product Manufacturing | 6,530 | $8,945,084 |
| 325412 | Pharmaceutical Preparation Manufacturing | 6,381 | $20,122,161,407 |
| 325611 | Soap and Other Detergent Manufacturing | 6,211 | $11,990,520 |
| 423610 | Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers | 5,442 | $65,919,620 |
| 334111 | Electronic Computer Manufacturing | 5,103 | $3,042,576,218 |
| 541511 | Custom Computer Programming Services | 5,097 | $27,096,115,274 |
| 326111 | Plastics Bag and Pouch Manufacturing | 5,096 | $19,175,121 |
| 325510 | Paint and Coating Manufacturing | 4,968 | $24,775,544 |
| 332999 | All Other Miscellaneous Fabricated Metal Product Manufacturing | 4,889 | $707,449,043 |
| 811210 | Electronic and Precision Equipment Repair and Maintenance | 4,866 | $3,066,620,935 |
| 339999 | All Other Miscellaneous Manufacturing | 4,806 | $1,348,882,880 |
| 541990 | All Other Professional, Scientific, and Technical Services | 4,794 | $54,291,529,779 |
| 339112 | Surgical and Medical Instrument Manufacturing | 4,692 | $878,178,400 |
| 332994 | Small Arms, Ordnance, and Ordnance Accessories Manufacturing | 4,509 | $3,106,069,440 |