| 1 | 336414 | GUIDED MISSILE AND SPACE VEHICLE MANUFACTURING | $3,027,588,083 | 4 |
| 2 | 541712 | RESEARCH AND DEVELOPMENT IN THE PHYSICAL, ENGINEERING, AND LIFE SCIENCES (EXCEPT BIOTECHNOLOGY) | $627,960,271 | 4 |
| 3 | 334220 | RADIO AND TELEVISION BROADCASTING AND WIRELESS COMMUNICATIONS EQUIPMENT MANUFACTURING | $383,350,891 | 2 |
| 4 | 517919 | ALL OTHER TELECOMMUNICATIONS | $242,868,777 | 1 |
| 5 | 541715 | RESEARCH AND DEVELOPMENT IN THE PHYSICAL, ENGINEERING, AND LIFE SCIENCES (EXCEPT NANOTECHNOLOGY AND BIOTECHNOLOGY) | $90,212,578 | 2 |
| 6 | 611519 | OTHER TECHNICAL AND TRADE SCHOOLS | $59,576,941 | 1 |
| 7 | 531390 | OTHER ACTIVITIES RELATED TO REAL ESTATE | $36,725,988 | 1 |
| 8 | 541310 | ARCHITECTURAL SERVICES | $27,178,553 | 2 |
| 9 | 334511 | SEARCH, DETECTION, NAVIGATION, GUIDANCE, AERONAUTICAL, AND NAUTICAL SYSTEM AND INSTRUMENT MANUFACTURING | $23,548,022 | 2 |
| 10 | 541330 | ENGINEERING SERVICES | $21,906,741 | 6 |
| 11 | 541511 | CUSTOM COMPUTER PROGRAMMING SERVICES | $17,429,833 | 1 |
| 12 | 561320 | TEMPORARY HELP SERVICES | $14,586,508 | 4 |
| 13 | 334517 | IRRADIATION APPARATUS MANUFACTURING | $13,725,659 | 2 |
| 14 | 562910 | REMEDIATION SERVICES | $6,111,526 | 3 |
| 15 | 811219 | OTHER ELECTRONIC AND PRECISION EQUIPMENT REPAIR AND MAINTENANCE | $4,704,743 | 5 |
| 16 | 333993 | PACKAGING MACHINERY MANUFACTURING | $3,845,843 | 1 |
| 17 | 611420 | COMPUTER TRAINING | $3,703,729 | 2 |
| 18 | 561720 | JANITORIAL SERVICES | $3,649,849 | 1 |
| 19 | 315999 | OTHER APPAREL ACCESSORIES AND OTHER APPAREL MANUFACTURING | $3,391,126 | 2 |
| 20 | 561210 | FACILITIES SUPPORT SERVICES | $2,309,911 | 16 |
| 21 | 541620 | ENVIRONMENTAL CONSULTING SERVICES | $2,274,966 | 2 |
| 22 | 561612 | SECURITY GUARDS AND PATROL SERVICES | $1,767,503 | 1 |
| 23 | 339114 | DENTAL EQUIPMENT AND SUPPLIES MANUFACTURING | $1,472,073 | 1 |
| 24 | 562219 | OTHER NONHAZARDOUS WASTE TREATMENT AND DISPOSAL | $1,210,550 | 1 |
| 25 | 336413 | OTHER AIRCRAFT PARTS AND AUXILIARY EQUIPMENT MANUFACTURING | $1,139,638 | 2 |
| 26 | 561410 | DOCUMENT PREPARATION SERVICES | $704,622 | 1 |
| 27 | 238290 | OTHER BUILDING EQUIPMENT CONTRACTORS | $681,542 | 1 |
| 28 | 562111 | SOLID WASTE COLLECTION | $461,530 | 2 |
| 29 | 221310 | WATER SUPPLY AND IRRIGATION SYSTEMS | $402,297 | 2 |
| 30 | 324110 | PETROLEUM REFINERIES | $318,513 | 2 |
| 31 | 221122 | ELECTRIC POWER DISTRIBUTION | $300,000 | 1 |
| 32 | 334413 | SEMICONDUCTOR AND RELATED DEVICE MANUFACTURING | $279,884 | 1 |
| 33 | 561599 | ALL OTHER TRAVEL ARRANGEMENT AND RESERVATION SERVICES | $257,516 | 1 |
| 34 | 517311 | WIRED TELECOMMUNICATIONS CARRIERS | $216,020 | 3 |
| 35 | 811310 | COMMERCIAL AND INDUSTRIAL MACHINERY AND EQUIPMENT (EXCEPT AUTOMOTIVE AND ELECTRONIC) REPAIR AND MAINTENANCE | $209,031 | 2 |
| 36 | 541519 | OTHER COMPUTER RELATED SERVICES | $207,308 | 2 |
| 37 | 238990 | ALL OTHER SPECIALTY TRADE CONTRACTORS | $202,979 | 1 |
| 38 | 511210 | SOFTWARE PUBLISHERS | $173,381 | 2 |
| 39 | 541690 | OTHER SCIENTIFIC AND TECHNICAL CONSULTING SERVICES | $152,769 | 2 |
| 40 | 424710 | PETROLEUM BULK STATIONS AND TERMINALS | $137,313 | 1 |
| 41 | 813110 | RELIGIOUS ORGANIZATIONS | $136,498 | 1 |
| 42 | 325413 | IN-VITRO DIAGNOSTIC SUBSTANCE MANUFACTURING | $84,816 | 1 |
| 43 | 517410 | SATELLITE TELECOMMUNICATIONS | $62,846 | 1 |
| 44 | 541199 | ALL OTHER LEGAL SERVICES | $53,823 | 2 |
| 45 | 541410 | INTERIOR DESIGN SERVICES | $53,259 | 1 |
| 46 | 561621 | SECURITY SYSTEMS SERVICES (EXCEPT LOCKSMITHS) | $51,781 | 1 |
| 47 | 325120 | INDUSTRIAL GAS MANUFACTURING | $39,973 | 1 |
| 48 | 333241 | FOOD PRODUCT MACHINERY MANUFACTURING | $36,960 | 1 |
| 49 | 238190 | OTHER FOUNDATION, STRUCTURE, AND BUILDING EXTERIOR CONTRACTORS | $36,065 | 1 |
| 50 | 611710 | EDUCATIONAL SUPPORT SERVICES | $29,000 | 2 |
| 51 | 236220 | COMMERCIAL AND INSTITUTIONAL BUILDING CONSTRUCTION | $28,848 | 1 |
| 52 | 334111 | ELECTRONIC COMPUTER MANUFACTURING | $26,438 | 1 |
| 53 | 621111 | OFFICES OF PHYSICIANS (EXCEPT MENTAL HEALTH SPECIALISTS) | $25,960 | 1 |
| 54 | 519130 | INTERNET PUBLISHING AND BROADCASTING AND WEB SEARCH PORTALS | $21,475 | 1 |
| 55 | 335312 | MOTOR AND GENERATOR MANUFACTURING | $20,225 | 1 |
| 56 | 325412 | PHARMACEUTICAL PREPARATION MANUFACTURING | $19,258 | 2 |
| 57 | 453210 | OFFICE SUPPLIES AND STATIONERY STORES | $18,756 | 1 |
| 58 | 611699 | ALL OTHER MISCELLANEOUS SCHOOLS AND INSTRUCTION | $18,400 | 1 |
| 59 | 611310 | COLLEGES, UNIVERSITIES, AND PROFESSIONAL SCHOOLS | $11,302 | 1 |
| 60 | 337121 | UPHOLSTERED HOUSEHOLD FURNITURE MANUFACTURING | $9,113 | 1 |
| 61 | 336411 | AIRCRAFT MANUFACTURING | $8,670 | 1 |
| 62 | 541191 | TITLE ABSTRACT AND SETTLEMENT OFFICES | $4,519 | 2 |
| 63 | 541380 | TESTING LABORATORIES AND SERVICES | $1,500 | 1 |
| 64 | 921110 | EXECUTIVE OFFICES | $590 | 1 |