| 1 | 621111 | OFFICES OF PHYSICIANS (EXCEPT MENTAL HEALTH SPECIALISTS) | $1,628,604,762 | 4 |
| 2 | 236220 | COMMERCIAL AND INSTITUTIONAL BUILDING CONSTRUCTION | $329,528,785 | 14 |
| 3 | 541512 | COMPUTER SYSTEMS DESIGN SERVICES | $82,736,002 | 6 |
| 4 | 541715 | RESEARCH AND DEVELOPMENT IN THE PHYSICAL, ENGINEERING, AND LIFE SCIENCES (EXCEPT NANOTECHNOLOGY AND BIOTECHNOLOGY) | $43,607,143 | 9 |
| 5 | 541330 | ENGINEERING SERVICES | $25,195,127 | 9 |
| 6 | 624310 | VOCATIONAL REHABILITATION SERVICES | $21,394,247 | 1 |
| 7 | 562910 | REMEDIATION SERVICES | $20,417,613 | 5 |
| 8 | 541519 | OTHER COMPUTER RELATED SERVICES | $19,295,081 | 7 |
| 9 | 562211 | HAZARDOUS WASTE TREATMENT AND DISPOSAL | $13,395,261 | 5 |
| 10 | 541690 | OTHER SCIENTIFIC AND TECHNICAL CONSULTING SERVICES | $9,322,069 | 3 |
| 11 | 517410 | SATELLITE TELECOMMUNICATIONS | $9,166,016 | 1 |
| 12 | 336413 | OTHER AIRCRAFT PARTS AND AUXILIARY EQUIPMENT MANUFACTURING | $8,380,994 | 1 |
| 13 | 561210 | FACILITIES SUPPORT SERVICES | $8,052,061 | 43 |
| 14 | 541990 | ALL OTHER PROFESSIONAL, SCIENTIFIC, AND TECHNICAL SERVICES | $7,734,526 | 3 |
| 15 | 541714 | RESEARCH AND DEVELOPMENT IN BIOTECHNOLOGY (EXCEPT NANOBIOTECHNOLOGY) | $4,879,349 | 1 |
| 16 | 541611 | ADMINISTRATIVE MANAGEMENT AND GENERAL MANAGEMENT CONSULTING SERVICES | $4,220,567 | 2 |
| 17 | 541511 | CUSTOM COMPUTER PROGRAMMING SERVICES | $3,129,259 | 2 |
| 18 | 334516 | ANALYTICAL LABORATORY INSTRUMENT MANUFACTURING | $2,833,030 | 6 |
| 19 | 811210 | ELECTRONIC AND PRECISION EQUIPMENT REPAIR AND MAINTENANCE | $2,828,352 | 1 |
| 20 | 541620 | ENVIRONMENTAL CONSULTING SERVICES | $2,627,057 | 5 |
| 21 | 561320 | TEMPORARY HELP SERVICES | $1,837,982 | 2 |
| 22 | 238220 | PLUMBING, HEATING, AND AIR-CONDITIONING CONTRACTORS | $1,334,684 | 4 |
| 23 | 541380 | TESTING LABORATORIES AND SERVICES | $1,147,180 | 4 |
| 24 | 335931 | CURRENT-CARRYING WIRING DEVICE MANUFACTURING | $799,872 | 1 |
| 25 | 339112 | SURGICAL AND MEDICAL INSTRUMENT MANUFACTURING | $721,165 | 2 |
| 26 | 339116 | DENTAL LABORATORIES | $709,705 | 1 |
| 27 | 333120 | CONSTRUCTION MACHINERY MANUFACTURING | $647,394 | 1 |
| 28 | 423430 | COMPUTER AND COMPUTER PERIPHERAL EQUIPMENT AND SOFTWARE MERCHANT WHOLESALERS | $577,490 | 1 |
| 29 | 336112 | LIGHT TRUCK AND UTILITY VEHICLE MANUFACTURING | $413,998 | 1 |
| 30 | 333415 | AIR-CONDITIONING AND WARM AIR HEATING EQUIPMENT AND COMMERCIAL AND INDUSTRIAL REFRIGERATION EQUIPMENT MANUFACTURING | $362,580 | 1 |
| 31 | 621511 | MEDICAL LABORATORIES | $350,798 | 3 |
| 32 | 211130 | NATURAL GAS EXTRACTION | $282,060 | 1 |
| 33 | 332111 | IRON AND STEEL FORGING | $249,696 | 1 |
| 34 | 511210 | SOFTWARE PUBLISHERS | $249,653 | 1 |
| 35 | 337122 | NONUPHOLSTERED WOOD HOUSEHOLD FURNITURE MANUFACTURING | $191,745 | 1 |
| 36 | 541310 | ARCHITECTURAL SERVICES | $169,888 | 1 |
| 37 | 334220 | RADIO AND TELEVISION BROADCASTING AND WIRELESS COMMUNICATIONS EQUIPMENT MANUFACTURING | $162,898 | 2 |
| 38 | 337214 | OFFICE FURNITURE (EXCEPT WOOD) MANUFACTURING | $159,696 | 9 |
| 39 | 334419 | OTHER ELECTRONIC COMPONENT MANUFACTURING | $157,093 | 4 |
| 40 | 541720 | RESEARCH AND DEVELOPMENT IN THE SOCIAL SCIENCES AND HUMANITIES | $155,847 | 2 |
| 41 | 339113 | SURGICAL APPLIANCE AND SUPPLIES MANUFACTURING | $131,743 | 2 |
| 42 | 325120 | INDUSTRIAL GAS MANUFACTURING | $108,084 | 1 |
| 43 | 336611 | SHIP BUILDING AND REPAIRING | $102,197 | 2 |
| 44 | 561720 | JANITORIAL SERVICES | $74,880 | 1 |
| 45 | 541930 | TRANSLATION AND INTERPRETATION SERVICES | $73,762 | 67 |
| 46 | 561990 | ALL OTHER SUPPORT SERVICES | $68,220 | 1 |
| 47 | 492110 | COURIERS AND EXPRESS DELIVERY SERVICES | $59,200 | 1 |
| 48 | 532490 | OTHER COMMERCIAL AND INDUSTRIAL MACHINERY AND EQUIPMENT RENTAL AND LEASING | $40,770 | 1 |
| 49 | 325413 | IN-VITRO DIAGNOSTIC SUBSTANCE MANUFACTURING | $30,796 | 1 |
| 50 | 516110 | RADIO BROADCASTING STATIONS | $27,642 | 1 |
| 51 | 315990 | APPAREL ACCESSORIES AND OTHER APPAREL MANUFACTURING | $26,657 | 1 |
| 52 | 811213 | COMMUNICATION EQUIPMENT REPAIR AND MAINTENANCE | $21,059 | 1 |
| 53 | 611310 | COLLEGES, UNIVERSITIES, AND PROFESSIONAL SCHOOLS | $15,000 | 1 |
| 54 | 332510 | HARDWARE MANUFACTURING | $14,600 | 1 |
| 55 | 238290 | OTHER BUILDING EQUIPMENT CONTRACTORS | $12,930 | 1 |
| 56 | 332813 | ELECTROPLATING, PLATING, POLISHING, ANODIZING, AND COLORING | $12,679 | 1 |
| 57 | 811310 | COMMERCIAL AND INDUSTRIAL MACHINERY AND EQUIPMENT (EXCEPT AUTOMOTIVE AND ELECTRONIC) REPAIR AND MAINTENANCE | $11,950 | 1 |
| 58 | 561710 | EXTERMINATING AND PEST CONTROL SERVICES | $10,520 | 1 |
| 59 | 339999 | ALL OTHER MISCELLANEOUS MANUFACTURING | $9,342 | 1 |
| 60 | 611430 | PROFESSIONAL AND MANAGEMENT DEVELOPMENT TRAINING | $7,650 | 1 |
| 61 | 513210 | SOFTWARE PUBLISHERS | $4,873 | 1 |
| 62 | 561492 | COURT REPORTING AND STENOTYPE SERVICES | $1,065 | 1 |