| 1 | 621111 | OFFICES OF PHYSICIANS (EXCEPT MENTAL HEALTH SPECIALISTS) | $727,452,303 | 4 |
| 2 | 336414 | GUIDED MISSILE AND SPACE VEHICLE MANUFACTURING | $340,786,767 | 1 |
| 3 | 541990 | ALL OTHER PROFESSIONAL, SCIENTIFIC, AND TECHNICAL SERVICES | $105,359,404 | 4 |
| 4 | 541519 | OTHER COMPUTER RELATED SERVICES | $49,963,628 | 5 |
| 5 | 236210 | INDUSTRIAL BUILDING CONSTRUCTION | $25,395,409 | 1 |
| 6 | 541512 | COMPUTER SYSTEMS DESIGN SERVICES | $21,292,653 | 2 |
| 7 | 561720 | JANITORIAL SERVICES | $13,222,601 | 2 |
| 8 | 324110 | PETROLEUM REFINERIES | $9,984,912 | 2 |
| 9 | 541330 | ENGINEERING SERVICES | $8,025,376 | 4 |
| 10 | 561210 | FACILITIES SUPPORT SERVICES | $5,182,458 | 1 |
| 11 | 518210 | DATA PROCESSING, HOSTING, AND RELATED SERVICES | $3,982,812 | 1 |
| 12 | 561621 | SECURITY SYSTEMS SERVICES (EXCEPT LOCKSMITHS) | $3,339,961 | 6 |
| 13 | 541611 | ADMINISTRATIVE MANAGEMENT AND GENERAL MANAGEMENT CONSULTING SERVICES | $2,610,986 | 1 |
| 14 | 561110 | OFFICE ADMINISTRATIVE SERVICES | $939,538 | 2 |
| 15 | 221310 | WATER SUPPLY AND IRRIGATION SYSTEMS | $826,104 | 1 |
| 16 | 517911 | TELECOMMUNICATIONS RESELLERS | $731,312 | 1 |
| 17 | 561730 | LANDSCAPING SERVICES | $728,766 | 1 |
| 18 | 334517 | IRRADIATION APPARATUS MANUFACTURING | $625,157 | 1 |
| 19 | 811490 | OTHER PERSONAL AND HOUSEHOLD GOODS REPAIR AND MAINTENANCE | $547,013 | 2 |
| 20 | 541715 | RESEARCH AND DEVELOPMENT IN THE PHYSICAL, ENGINEERING, AND LIFE SCIENCES (EXCEPT NANOTECHNOLOGY AND BIOTECHNOLOGY) | $434,267 | 1 |
| 21 | 237130 | POWER AND COMMUNICATION LINE AND RELATED STRUCTURES CONSTRUCTION | $387,458 | 1 |
| 22 | 811310 | COMMERCIAL AND INDUSTRIAL MACHINERY AND EQUIPMENT (EXCEPT AUTOMOTIVE AND ELECTRONIC) REPAIR AND MAINTENANCE | $375,431 | 1 |
| 23 | 423450 | MEDICAL, DENTAL, AND HOSPITAL EQUIPMENT AND SUPPLIES MERCHANT WHOLESALERS | $361,666 | 1 |
| 24 | 337211 | WOOD OFFICE FURNITURE MANUFACTURING | $359,232 | 1 |
| 25 | 611310 | COLLEGES, UNIVERSITIES, AND PROFESSIONAL SCHOOLS | $297,072 | 1 |
| 26 | 238210 | ELECTRICAL CONTRACTORS AND OTHER WIRING INSTALLATION CONTRACTORS | $291,480 | 1 |
| 27 | 325413 | IN-VITRO DIAGNOSTIC SUBSTANCE MANUFACTURING | $274,135 | 1 |
| 28 | 339999 | ALL OTHER MISCELLANEOUS MANUFACTURING | $243,657 | 1 |
| 29 | 334220 | RADIO AND TELEVISION BROADCASTING AND WIRELESS COMMUNICATIONS EQUIPMENT MANUFACTURING | $114,506 | 1 |
| 30 | 339113 | SURGICAL APPLIANCE AND SUPPLIES MANUFACTURING | $106,948 | 1 |
| 31 | 517312 | WIRELESS TELECOMMUNICATIONS CARRIERS (EXCEPT SATELLITE) | $68,640 | 1 |
| 32 | 811219 | OTHER ELECTRONIC AND PRECISION EQUIPMENT REPAIR AND MAINTENANCE | $59,940 | 1 |
| 33 | 532490 | OTHER COMMERCIAL AND INDUSTRIAL MACHINERY AND EQUIPMENT RENTAL AND LEASING | $50,962 | 1 |
| 34 | 336413 | OTHER AIRCRAFT PARTS AND AUXILIARY EQUIPMENT MANUFACTURING | $49,000 | 1 |
| 35 | 326160 | PLASTICS BOTTLE MANUFACTURING | $47,400 | 1 |
| 36 | 315999 | OTHER APPAREL ACCESSORIES AND OTHER APPAREL MANUFACTURING | $34,418 | 1 |
| 37 | 621999 | ALL OTHER MISCELLANEOUS AMBULATORY HEALTH CARE SERVICES | $17,679 | 1 |
| 38 | 921190 | OTHER GENERAL GOVERNMENT SUPPORT | $14,729 | 1 |
| 39 | 337214 | OFFICE FURNITURE (EXCEPT WOOD) MANUFACTURING | $12,113 | 1 |