| 1 | 336414 | GUIDED MISSILE AND SPACE VEHICLE MANUFACTURING | $22,912,611,859 | 4 |
| 2 | 621111 | OFFICES OF PHYSICIANS (EXCEPT MENTAL HEALTH SPECIALISTS) | $1,643,836,907 | 22 |
| 3 | 517110 | WIRED TELECOMMUNICATIONS CARRIERS | $1,586,828,331 | 3 |
| 4 | 336419 | OTHER GUIDED MISSILE AND SPACE VEHICLE PARTS AND AUXILIARY EQUIPMENT MANUFACTURING | $1,413,249,907 | 2 |
| 5 | 541712 | RESEARCH AND DEVELOPMENT IN THE PHYSICAL, ENGINEERING, AND LIFE SCIENCES (EXCEPT BIOTECHNOLOGY) | $1,102,108,999 | 5 |
| 6 | 488190 | OTHER SUPPORT ACTIVITIES FOR AIR TRANSPORTATION | $1,054,618,578 | 2 |
| 7 | 922190 | OTHER JUSTICE, PUBLIC ORDER, AND SAFETY ACTIVITIES | $802,170,500 | 1 |
| 8 | 624110 | CHILD AND YOUTH SERVICES | $713,907,435 | 1 |
| 9 | 541330 | ENGINEERING SERVICES | $340,262,158 | 46 |
| 10 | 541611 | ADMINISTRATIVE MANAGEMENT AND GENERAL MANAGEMENT CONSULTING SERVICES | $206,734,042 | 6 |
| 11 | 336413 | OTHER AIRCRAFT PARTS AND AUXILIARY EQUIPMENT MANUFACTURING | $185,514,136 | 2 |
| 12 | 334511 | SEARCH, DETECTION, NAVIGATION, GUIDANCE, AERONAUTICAL, AND NAUTICAL SYSTEM AND INSTRUMENT MANUFACTURING | $153,587,730 | 3 |
| 13 | 336411 | AIRCRAFT MANUFACTURING | $151,967,326 | 2 |
| 14 | 611519 | OTHER TECHNICAL AND TRADE SCHOOLS | $139,050,662 | 3 |
| 15 | 334517 | IRRADIATION APPARATUS MANUFACTURING | $113,740,058 | 5 |
| 16 | 541714 | RESEARCH AND DEVELOPMENT IN BIOTECHNOLOGY (EXCEPT NANOBIOTECHNOLOGY) | $113,293,528 | 1 |
| 17 | 493110 | GENERAL WAREHOUSING AND STORAGE | $90,220,015 | 1 |
| 18 | 237990 | OTHER HEAVY AND CIVIL ENGINEERING CONSTRUCTION | $56,364,372 | 3 |
| 19 | 541519 | OTHER COMPUTER RELATED SERVICES | $55,931,983 | 9 |
| 20 | 541930 | TRANSLATION AND INTERPRETATION SERVICES | $50,823,518 | 2 |
| 21 | 541512 | COMPUTER SYSTEMS DESIGN SERVICES | $45,201,161 | 3 |
| 22 | 541710 | RESEARCH AND DEVELOPMENT IN THE PHYSICAL, ENGINEERING, AND LIFE SCIENCES | $38,048,480 | 1 |
| 23 | 541310 | ARCHITECTURAL SERVICES | $23,392,248 | 3 |
| 24 | 541380 | TESTING LABORATORIES AND SERVICES | $15,593,912 | 7 |
| 25 | 541511 | CUSTOM COMPUTER PROGRAMMING SERVICES | $14,752,446 | 1 |
| 26 | 541715 | RESEARCH AND DEVELOPMENT IN THE PHYSICAL, ENGINEERING, AND LIFE SCIENCES (EXCEPT NANOTECHNOLOGY AND BIOTECHNOLOGY) | $13,006,642 | 6 |
| 27 | 334220 | RADIO AND TELEVISION BROADCASTING AND WIRELESS COMMUNICATIONS EQUIPMENT MANUFACTURING | $12,859,560 | 3 |
| 28 | 561210 | FACILITIES SUPPORT SERVICES | $12,668,714 | 4 |
| 29 | 238210 | ELECTRICAL CONTRACTORS AND OTHER WIRING INSTALLATION CONTRACTORS | $12,506,892 | 1 |
| 30 | 561612 | SECURITY GUARDS AND PATROL SERVICES | $11,710,958 | 3 |
| 31 | 562910 | REMEDIATION SERVICES | $9,852,917 | 3 |
| 32 | 518210 | DATA PROCESSING, HOSTING, AND RELATED SERVICES | $8,320,974 | 2 |
| 33 | 236210 | INDUSTRIAL BUILDING CONSTRUCTION | $7,493,939 | 1 |
| 34 | 812990 | ALL OTHER PERSONAL SERVICES | $6,503,287 | 1 |
| 35 | 221310 | WATER SUPPLY AND IRRIGATION SYSTEMS | $6,456,819 | 1 |
| 36 | 561320 | TEMPORARY HELP SERVICES | $6,096,926 | 1 |
| 37 | 621999 | ALL OTHER MISCELLANEOUS AMBULATORY HEALTH CARE SERVICES | $5,786,931 | 1 |
| 38 | 811219 | OTHER ELECTRONIC AND PRECISION EQUIPMENT REPAIR AND MAINTENANCE | $4,001,427 | 11 |
| 39 | 811212 | COMPUTER AND OFFICE MACHINE REPAIR AND MAINTENANCE | $3,670,442 | 2 |
| 40 | 541219 | OTHER ACCOUNTING SERVICES | $3,577,963 | 1 |
| 41 | 561110 | OFFICE ADMINISTRATIVE SERVICES | $3,453,806 | 9 |
| 42 | 316999 | ALL OTHER LEATHER GOOD MANUFACTURING | $2,701,111 | 1 |
| 43 | 611430 | PROFESSIONAL AND MANAGEMENT DEVELOPMENT TRAINING | $1,756,381 | 2 |
| 44 | 541990 | ALL OTHER PROFESSIONAL, SCIENTIFIC, AND TECHNICAL SERVICES | $1,202,071 | 4 |
| 45 | 623110 | NURSING CARE FACILITIES (SKILLED NURSING FACILITIES) | $1,093,838 | 4 |
| 46 | 236220 | COMMERCIAL AND INSTITUTIONAL BUILDING CONSTRUCTION | $1,067,907 | 3 |
| 47 | 611699 | ALL OTHER MISCELLANEOUS SCHOOLS AND INSTRUCTION | $975,550 | 2 |
| 48 | 561990 | ALL OTHER SUPPORT SERVICES | $888,970 | 7 |
| 49 | 333613 | MECHANICAL POWER TRANSMISSION EQUIPMENT MANUFACTURING | $862,701 | 1 |
| 50 | 621511 | MEDICAL LABORATORIES | $622,622 | 3 |
| 51 | 561621 | SECURITY SYSTEMS SERVICES (EXCEPT LOCKSMITHS) | $612,769 | 5 |
| 52 | 221121 | ELECTRIC BULK POWER TRANSMISSION AND CONTROL | $570,406 | 1 |
| 53 | 621910 | AMBULANCE SERVICES | $545,000 | 1 |
| 54 | 812332 | INDUSTRIAL LAUNDERERS | $468,765 | 2 |
| 55 | 561720 | JANITORIAL SERVICES | $449,839 | 4 |
| 56 | 541614 | PROCESS, PHYSICAL DISTRIBUTION, AND LOGISTICS CONSULTING SERVICES | $410,299 | 1 |
| 57 | 811310 | COMMERCIAL AND INDUSTRIAL MACHINERY AND EQUIPMENT (EXCEPT AUTOMOTIVE AND ELECTRONIC) REPAIR AND MAINTENANCE | $388,990 | 2 |
| 58 | 562998 | ALL OTHER MISCELLANEOUS WASTE MANAGEMENT SERVICES | $361,499 | 1 |
| 59 | 541620 | ENVIRONMENTAL CONSULTING SERVICES | $330,750 | 1 |
| 60 | 333316 | PHOTOGRAPHIC AND PHOTOCOPYING EQUIPMENT MANUFACTURING | $291,087 | 3 |
| 61 | 334512 | AUTOMATIC ENVIRONMENTAL CONTROL MANUFACTURING FOR RESIDENTIAL, COMMERCIAL, AND APPLIANCE USE | $276,372 | 1 |
| 62 | 621399 | OFFICES OF ALL OTHER MISCELLANEOUS HEALTH PRACTITIONERS | $273,890 | 1 |
| 63 | 221210 | NATURAL GAS DISTRIBUTION | $270,673 | 1 |
| 64 | 423130 | TIRE AND TUBE MERCHANT WHOLESALERS | $263,680 | 1 |
| 65 | 511210 | SOFTWARE PUBLISHERS | $240,563 | 1 |
| 66 | 561611 | INVESTIGATION AND PERSONAL BACKGROUND CHECK SERVICES | $199,231 | 2 |
| 67 | 238220 | PLUMBING, HEATING, AND AIR-CONDITIONING CONTRACTORS | $175,567 | 4 |
| 68 | 562211 | HAZARDOUS WASTE TREATMENT AND DISPOSAL | $169,021 | 3 |
| 69 | 333924 | INDUSTRIAL TRUCK, TRACTOR, TRAILER, AND STACKER MACHINERY MANUFACTURING | $142,219 | 2 |
| 70 | 423830 | INDUSTRIAL MACHINERY AND EQUIPMENT MERCHANT WHOLESALERS | $133,076 | 1 |
| 71 | 532490 | OTHER COMMERCIAL AND INDUSTRIAL MACHINERY AND EQUIPMENT RENTAL AND LEASING | $123,834 | 2 |
| 72 | 423990 | OTHER MISCELLANEOUS DURABLE GOODS MERCHANT WHOLESALERS | $116,713 | 1 |
| 73 | 334111 | ELECTRONIC COMPUTER MANUFACTURING | $114,501 | 2 |
| 74 | 332999 | ALL OTHER MISCELLANEOUS FABRICATED METAL PRODUCT MANUFACTURING | $112,890 | 1 |
| 75 | 332992 | SMALL ARMS AMMUNITION MANUFACTURING | $100,635 | 1 |
| 76 | 339920 | SPORTING AND ATHLETIC GOODS MANUFACTURING | $75,695 | 1 |
| 77 | 334290 | OTHER COMMUNICATIONS EQUIPMENT MANUFACTURING | $69,950 | 1 |
| 78 | 624190 | OTHER INDIVIDUAL AND FAMILY SERVICES | $67,892 | 1 |
| 79 | 531320 | OFFICES OF REAL ESTATE APPRAISERS | $67,820 | 1 |
| 80 | 561410 | DOCUMENT PREPARATION SERVICES | $66,000 | 1 |
| 81 | 335122 | COMMERCIAL, INDUSTRIAL, AND INSTITUTIONAL ELECTRIC LIGHTING FIXTURE MANUFACTURING | $65,914 | 2 |
| 82 | 532420 | OFFICE MACHINERY AND EQUIPMENT RENTAL AND LEASING | $55,006 | 1 |
| 83 | 423910 | SPORTING AND RECREATIONAL GOODS AND SUPPLIES MERCHANT WHOLESALERS | $54,842 | 2 |
| 84 | 332710 | MACHINE SHOPS | $46,957 | 1 |
| 85 | 238330 | FLOORING CONTRACTORS | $43,820 | 2 |
| 86 | 332321 | METAL WINDOW AND DOOR MANUFACTURING | $41,418 | 1 |
| 87 | 238290 | OTHER BUILDING EQUIPMENT CONTRACTORS | $41,377 | 4 |
| 88 | 315234 | WOMEN'S AND GIRLS' CUT AND SEW SUIT, COAT, TAILORED JACKET, AND SKIRT MANUFACTURING | $41,000 | 1 |
| 89 | 541199 | ALL OTHER LEGAL SERVICES | $40,375 | 1 |
| 90 | 712130 | ZOOS AND BOTANICAL GARDENS | $39,600 | 1 |
| 91 | 339113 | SURGICAL APPLIANCE AND SUPPLIES MANUFACTURING | $33,733 | 1 |
| 92 | 562111 | SOLID WASTE COLLECTION | $32,640 | 2 |
| 93 | 333313 | OFFICE MACHINERY MANUFACTURING | $31,501 | 1 |
| 94 | 315280 | OTHER CUT AND SEW APPAREL MANUFACTURING | $31,207 | 1 |
| 95 | 238190 | OTHER FOUNDATION, STRUCTURE, AND BUILDING EXTERIOR CONTRACTORS | $28,047 | 1 |
| 96 | 423430 | COMPUTER AND COMPUTER PERIPHERAL EQUIPMENT AND SOFTWARE MERCHANT WHOLESALERS | $27,486 | 2 |
| 97 | 561613 | ARMORED CAR SERVICES | $22,815 | 1 |
| 98 | 334419 | OTHER ELECTRONIC COMPONENT MANUFACTURING | $21,558 | 1 |
| 99 | 312112 | BOTTLED WATER MANUFACTURING | $20,129 | 1 |
| 100 | 541690 | OTHER SCIENTIFIC AND TECHNICAL CONSULTING SERVICES | $18,742 | 2 |