| 423450 | Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers | 170,444 | $1,866,907,168 |
| 311991 | Perishable Prepared Food Manufacturing | 142,180 | $551,512,810 |
| 424210 | Drugs and Druggists' Sundries Merchant Wholesalers | 99,359 | $755,788,335 |
| 444110 | Home Centers | 84,379 | $256,451,453 |
| 423850 | Service Establishment Equipment and Supplies Merchant Wholesalers | 74,287 | $2,652,315,695 |
| 339940 | Office Supplies (except Paper) Manufacturing | 61,396 | $111,924,838 |
| 311812 | Commercial Bakeries | 58,259 | $184,032,816 |
| 324110 | Petroleum Refineries | 57,845 | $4,539,501,925 |
| 453210 | Office Supplies and Stationery Stores | 56,897 | $45,609,089 |
| 332216 | Saw Blade and Handtool Manufacturing | 55,382 | $108,067,902 |
| 322230 | Stationery Product Manufacturing | 52,194 | $61,395,866 |
| 423710 | Hardware Merchant Wholesalers | 39,076 | $35,588,711 |
| 493190 | Other Warehousing and Storage | 34,512 | $1,508,957,848 |
| 324191 | Petroleum Lubricating Oil and Grease Manufacturing | 33,716 | $63,044,497 |
| 332722 | Bolt, Nut, Screw, Rivet, and Washer Manufacturing | 30,828 | $136,449,301 |
| 325411 | Medicinal and Botanical Manufacturing | 30,743 | $1,202,472,892 |
| 332510 | Hardware Manufacturing | 30,481 | $254,150,062 |
| 325520 | Adhesive Manufacturing | 27,876 | $27,910,536 |
| 541519 | Other Computer Related Services | 27,565 | $66,232,036,892 |
| 336111 | Automobile Manufacturing | 25,293 | $1,194,664,103 |
| 444130 | Hardware Stores | 24,418 | $63,074,210 |
| 336413 | Other Aircraft Parts and Auxiliary Equipment Manufacturing | 22,044 | $45,586,587,426 |
| 541330 | Engineering Services | 18,266 | $244,471,505,419 |
| 311999 | All Other Miscellaneous Food Manufacturing | 17,667 | $1,006,374,315 |
| 115310 | Support Activities for Forestry | 15,845 | $1,668,451,510 |
| 337214 | Office Furniture (except Wood) Manufacturing | 15,804 | $606,098,874 |
| 561210 | Facilities Support Services | 13,856 | $402,413,863,170 |
| 541611 | Administrative Management and General Management Consulting Services | 13,148 | $39,239,783,825 |
| 423840 | Industrial Supplies Merchant Wholesalers | 13,133 | $15,125,512 |
| 236220 | Commercial and Institutional Building Construction | 12,881 | $129,533,310,971 |
| 333618 | Other Engine Equipment Manufacturing | 12,224 | $976,496,106 |
| 541512 | Computer Systems Design Services | 11,787 | $130,369,593,565 |
| 541715 | Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) | 10,802 | $193,645,585,194 |
| 339113 | Surgical Appliance and Supplies Manufacturing | 9,464 | $1,084,895,111 |
| 311911 | Roasted Nuts and Peanut Butter Manufacturing | 9,096 | $89,124,206 |
| 334111 | Electronic Computer Manufacturing | 8,001 | $5,467,532,753 |
| 335912 | Primary Battery Manufacturing | 7,565 | $19,368,169 |
| 325412 | Pharmaceutical Preparation Manufacturing | 7,211 | $24,277,425,362 |
| 541511 | Custom Computer Programming Services | 7,033 | $35,923,929,577 |
| 334516 | Analytical Laboratory Instrument Manufacturing | 7,026 | $1,659,273,700 |
| 326140 | Polystyrene Foam Product Manufacturing | 6,857 | $10,221,269 |
| 325611 | Soap and Other Detergent Manufacturing | 6,795 | $16,379,836 |
| 332999 | All Other Miscellaneous Fabricated Metal Product Manufacturing | 6,638 | $931,806,928 |
| 339999 | All Other Miscellaneous Manufacturing | 6,591 | $2,200,565,339 |
| 541990 | All Other Professional, Scientific, and Technical Services | 6,579 | $63,432,996,843 |
| 339112 | Surgical and Medical Instrument Manufacturing | 6,231 | $1,493,582,767 |
| 811210 | Electronic and Precision Equipment Repair and Maintenance | 5,985 | $3,495,728,890 |
| 423610 | Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers | 5,897 | $144,053,079 |
| 326111 | Plastics Bag and Pouch Manufacturing | 5,659 | $31,992,365 |
| 332994 | Small Arms, Ordnance, and Ordnance Accessories Manufacturing | 5,627 | $4,734,821,331 |