| 1 | 541710 | RESEARCH AND DEVELOPMENT IN THE PHYSICAL, ENGINEERING, AND LIFE SCIENCES | $17,264,919,334 | 1 |
| 2 | 423450 | MEDICAL, DENTAL, AND HOSPITAL EQUIPMENT AND SUPPLIES MERCHANT WHOLESALERS | $226,252,400 | 138 |
| 3 | 541512 | COMPUTER SYSTEMS DESIGN SERVICES | $217,261,360 | 2 |
| 4 | 541720 | RESEARCH AND DEVELOPMENT IN THE SOCIAL SCIENCES AND HUMANITIES | $139,004,271 | 1 |
| 5 | 541519 | OTHER COMPUTER RELATED SERVICES | $85,984,643 | 10 |
| 6 | 221310 | WATER SUPPLY AND IRRIGATION SYSTEMS | $55,015,693 | 1 |
| 7 | 611519 | OTHER TECHNICAL AND TRADE SCHOOLS | $44,645,488 | 1 |
| 8 | 541611 | ADMINISTRATIVE MANAGEMENT AND GENERAL MANAGEMENT CONSULTING SERVICES | $44,032,741 | 2 |
| 9 | 523920 | PORTFOLIO MANAGEMENT | $37,928,188 | 2 |
| 10 | 541910 | MARKETING RESEARCH AND PUBLIC OPINION POLLING | $12,677,046 | 1 |
| 11 | 334516 | ANALYTICAL LABORATORY INSTRUMENT MANUFACTURING | $11,153,543 | 7 |
| 12 | 236220 | COMMERCIAL AND INSTITUTIONAL BUILDING CONSTRUCTION | $10,539,692 | 2 |
| 13 | 541110 | OFFICES OF LAWYERS | $9,830,511 | 2 |
| 14 | 491110 | POSTAL SERVICE | $7,253,351 | 1 |
| 15 | 561210 | FACILITIES SUPPORT SERVICES | $6,922,993 | 1 |
| 16 | 541711 | RESEARCH AND DEVELOPMENT IN BIOTECHNOLOGY | $4,257,889 | 2 |
| 17 | 541310 | ARCHITECTURAL SERVICES | $4,232,174 | 6 |
| 18 | 541380 | TESTING LABORATORIES AND SERVICES | $3,889,327 | 1 |
| 19 | 237130 | POWER AND COMMUNICATION LINE AND RELATED STRUCTURES CONSTRUCTION | $3,556,501 | 1 |
| 20 | 518210 | DATA PROCESSING, HOSTING, AND RELATED SERVICES | $3,157,068 | 1 |
| 21 | 541620 | ENVIRONMENTAL CONSULTING SERVICES | $2,752,269 | 3 |
| 22 | 493190 | OTHER WAREHOUSING AND STORAGE | $2,492,687 | 1 |
| 23 | 532490 | OTHER COMMERCIAL AND INDUSTRIAL MACHINERY AND EQUIPMENT RENTAL AND LEASING | $2,266,074 | 1 |
| 24 | 541712 | RESEARCH AND DEVELOPMENT IN THE PHYSICAL, ENGINEERING, AND LIFE SCIENCES (EXCEPT BIOTECHNOLOGY) | $2,203,302 | 1 |
| 25 | 541715 | RESEARCH AND DEVELOPMENT IN THE PHYSICAL, ENGINEERING, AND LIFE SCIENCES (EXCEPT NANOTECHNOLOGY AND BIOTECHNOLOGY) | $2,171,444 | 5 |
| 26 | 339999 | ALL OTHER MISCELLANEOUS MANUFACTURING | $2,107,334 | 1 |
| 27 | 541511 | CUSTOM COMPUTER PROGRAMMING SERVICES | $2,100,538 | 1 |
| 28 | 335999 | ALL OTHER MISCELLANEOUS ELECTRICAL EQUIPMENT AND COMPONENT MANUFACTURING | $1,751,995 | 5 |
| 29 | 424490 | OTHER GROCERY AND RELATED PRODUCTS MERCHANT WHOLESALERS | $1,715,017 | 1 |
| 30 | 325413 | IN-VITRO DIAGNOSTIC SUBSTANCE MANUFACTURING | $1,600,798 | 2 |
| 31 | 561499 | ALL OTHER BUSINESS SUPPORT SERVICES | $1,571,315 | 1 |
| 32 | 811212 | COMPUTER AND OFFICE MACHINE REPAIR AND MAINTENANCE | $1,539,407 | 2 |
| 33 | 611430 | PROFESSIONAL AND MANAGEMENT DEVELOPMENT TRAINING | $1,468,062 | 3 |
| 34 | 423850 | SERVICE ESTABLISHMENT EQUIPMENT AND SUPPLIES MERCHANT WHOLESALERS | $1,085,470 | 1 |
| 35 | 811219 | OTHER ELECTRONIC AND PRECISION EQUIPMENT REPAIR AND MAINTENANCE | $973,517 | 3 |
| 36 | 488190 | OTHER SUPPORT ACTIVITIES FOR AIR TRANSPORTATION | $851,520 | 1 |
| 37 | 517110 | WIRED TELECOMMUNICATIONS CARRIERS | $704,833 | 1 |
| 38 | 443120 | COMPUTER AND SOFTWARE STORES | $642,121 | 1 |
| 39 | 238290 | OTHER BUILDING EQUIPMENT CONTRACTORS | $578,568 | 1 |
| 40 | 541330 | ENGINEERING SERVICES | $567,281 | 6 |
| 41 | 561320 | TEMPORARY HELP SERVICES | $486,577 | 1 |
| 42 | 621511 | MEDICAL LABORATORIES | $460,875 | 1 |
| 43 | 611310 | COLLEGES, UNIVERSITIES, AND PROFESSIONAL SCHOOLS | $321,697 | 1 |
| 44 | 562910 | REMEDIATION SERVICES | $276,590 | 1 |
| 45 | 492110 | COURIERS AND EXPRESS DELIVERY SERVICES | $237,645 | 1 |
| 46 | 339920 | SPORTING AND ATHLETIC GOODS MANUFACTURING | $203,623 | 1 |
| 47 | 541690 | OTHER SCIENTIFIC AND TECHNICAL CONSULTING SERVICES | $165,290 | 1 |
| 48 | 334290 | OTHER COMMUNICATIONS EQUIPMENT MANUFACTURING | $156,358 | 1 |
| 49 | 325412 | PHARMACEUTICAL PREPARATION MANUFACTURING | $123,549 | 3 |
| 50 | 561621 | SECURITY SYSTEMS SERVICES (EXCEPT LOCKSMITHS) | $102,369 | 1 |
| 51 | 339113 | SURGICAL APPLIANCE AND SUPPLIES MANUFACTURING | $67,741 | 4 |
| 52 | 541990 | ALL OTHER PROFESSIONAL, SCIENTIFIC, AND TECHNICAL SERVICES | $63,423 | 1 |
| 53 | 333911 | PUMP AND PUMPING EQUIPMENT MANUFACTURING | $58,485 | 1 |
| 54 | 541211 | OFFICES OF CERTIFIED PUBLIC ACCOUNTANTS | $45,692 | 1 |
| 55 | 721110 | HOTELS (EXCEPT CASINO HOTELS) AND MOTELS | $41,954 | 1 |
| 56 | 339112 | SURGICAL AND MEDICAL INSTRUMENT MANUFACTURING | $35,360 | 2 |
| 57 | 334111 | ELECTRONIC COMPUTER MANUFACTURING | $28,466 | 1 |
| 58 | 923120 | ADMINISTRATION OF PUBLIC HEALTH PROGRAMS | $27,109 | 1 |
| 59 | 332919 | OTHER METAL VALVE AND PIPE FITTING MANUFACTURING | $25,660 | 1 |
| 60 | 238220 | PLUMBING, HEATING, AND AIR-CONDITIONING CONTRACTORS | $19,250 | 1 |
| 61 | 326122 | PLASTICS PIPE AND PIPE FITTING MANUFACTURING | $17,921 | 1 |
| 62 | 333318 | OTHER COMMERCIAL AND SERVICE INDUSTRY MACHINERY MANUFACTURING | $17,344 | 1 |
| 63 | 493110 | GENERAL WAREHOUSING AND STORAGE | $14,336 | 1 |
| 64 | 238990 | ALL OTHER SPECIALTY TRADE CONTRACTORS | $13,345 | 1 |
| 65 | 325414 | BIOLOGICAL PRODUCT (EXCEPT DIAGNOSTIC) MANUFACTURING | $12,408 | 1 |
| 66 | 423610 | ELECTRICAL APPARATUS AND EQUIPMENT, WIRING SUPPLIES, AND RELATED EQUIPMENT MERCHANT WHOLESALERS | $12,219 | 3 |
| 67 | 444110 | HOME CENTERS | $11,296 | 1 |
| 68 | 332722 | BOLT, NUT, SCREW, RIVET, AND WASHER MANUFACTURING | $8,892 | 1 |
| 69 | 332994 | SMALL ARMS, ORDNANCE, AND ORDNANCE ACCESSORIES MANUFACTURING | $3,101 | 1 |
| 70 | 332992 | SMALL ARMS AMMUNITION MANUFACTURING | $2,193 | 1 |
| 71 | 331491 | NONFERROUS METAL (EXCEPT COPPER AND ALUMINUM) ROLLING, DRAWING, AND EXTRUDING | $1,621 | 1 |
| 72 | 423310 | LUMBER, PLYWOOD, MILLWORK, AND WOOD PANEL MERCHANT WHOLESALERS | $296 | 1 |