| 1 | 541512 | COMPUTER SYSTEMS DESIGN SERVICES | $373,274,927 | 9 |
| 2 | 541110 | OFFICES OF LAWYERS | $356,540,287 | 2 |
| 3 | 561612 | SECURITY GUARDS AND PATROL SERVICES | $49,404,630 | 27 |
| 4 | 541330 | ENGINEERING SERVICES | $40,043,043 | 9 |
| 5 | 541519 | OTHER COMPUTER RELATED SERVICES | $39,197,220 | 35 |
| 6 | 511210 | SOFTWARE PUBLISHERS | $39,108,862 | 3 |
| 7 | 541611 | ADMINISTRATIVE MANAGEMENT AND GENERAL MANAGEMENT CONSULTING SERVICES | $37,247,844 | 23 |
| 8 | 541511 | CUSTOM COMPUTER PROGRAMMING SERVICES | $28,476,411 | 9 |
| 9 | 541990 | ALL OTHER PROFESSIONAL, SCIENTIFIC, AND TECHNICAL SERVICES | $16,280,593 | 10 |
| 10 | 561210 | FACILITIES SUPPORT SERVICES | $12,826,795 | 4 |
| 11 | 562910 | REMEDIATION SERVICES | $10,168,367 | 4 |
| 12 | 518210 | DATA PROCESSING, HOSTING, AND RELATED SERVICES | $7,383,908 | 1 |
| 13 | 238990 | ALL OTHER SPECIALTY TRADE CONTRACTORS | $4,870,991 | 1 |
| 14 | 336120 | HEAVY DUTY TRUCK MANUFACTURING | $3,622,082 | 1 |
| 15 | 541211 | OFFICES OF CERTIFIED PUBLIC ACCOUNTANTS | $3,105,750 | 2 |
| 16 | 336611 | SHIP BUILDING AND REPAIRING | $2,830,000 | 1 |
| 17 | 423430 | COMPUTER AND COMPUTER PERIPHERAL EQUIPMENT AND SOFTWARE MERCHANT WHOLESALERS | $2,674,465 | 1 |
| 18 | 541618 | OTHER MANAGEMENT CONSULTING SERVICES | $2,077,265 | 1 |
| 19 | 236220 | COMMERCIAL AND INSTITUTIONAL BUILDING CONSTRUCTION | $2,028,944 | 1 |
| 20 | 541712 | RESEARCH AND DEVELOPMENT IN THE PHYSICAL, ENGINEERING, AND LIFE SCIENCES (EXCEPT BIOTECHNOLOGY) | $1,763,000 | 1 |
| 21 | 541715 | RESEARCH AND DEVELOPMENT IN THE PHYSICAL, ENGINEERING, AND LIFE SCIENCES (EXCEPT NANOTECHNOLOGY AND BIOTECHNOLOGY) | $1,263,838 | 1 |
| 22 | 336413 | OTHER AIRCRAFT PARTS AND AUXILIARY EQUIPMENT MANUFACTURING | $1,174,513 | 1 |
| 23 | 541690 | OTHER SCIENTIFIC AND TECHNICAL CONSULTING SERVICES | $843,480 | 2 |
| 24 | 541410 | INTERIOR DESIGN SERVICES | $763,186 | 1 |
| 25 | 519290 | WEB SEARCH PORTALS AND ALL OTHER INFORMATION SERVICES | $761,346 | 1 |
| 26 | 621999 | ALL OTHER MISCELLANEOUS AMBULATORY HEALTH CARE SERVICES | $727,500 | 1 |
| 27 | 541310 | ARCHITECTURAL SERVICES | $655,250 | 1 |
| 28 | 334111 | ELECTRONIC COMPUTER MANUFACTURING | $628,113 | 2 |
| 29 | 519130 | INTERNET PUBLISHING AND BROADCASTING AND WEB SEARCH PORTALS | $319,840 | 1 |
| 30 | 928120 | INTERNATIONAL AFFAIRS | $230,989 | 1 |
| 31 | 812930 | PARKING LOTS AND GARAGES | $229,090 | 2 |
| 32 | 333244 | PRINTING MACHINERY AND EQUIPMENT MANUFACTURING | $225,906 | 1 |
| 33 | 541620 | ENVIRONMENTAL CONSULTING SERVICES | $208,022 | 1 |
| 34 | 561611 | INVESTIGATION AND PERSONAL BACKGROUND CHECK SERVICES | $199,000 | 1 |
| 35 | 493110 | GENERAL WAREHOUSING AND STORAGE | $192,784 | 1 |
| 36 | 561320 | TEMPORARY HELP SERVICES | $160,232 | 6 |
| 37 | 561920 | CONVENTION AND TRADE SHOW ORGANIZERS | $149,470 | 3 |
| 38 | 325320 | PESTICIDE AND OTHER AGRICULTURAL CHEMICAL MANUFACTURING | $127,298 | 1 |
| 39 | 334220 | RADIO AND TELEVISION BROADCASTING AND WIRELESS COMMUNICATIONS EQUIPMENT MANUFACTURING | $106,778 | 1 |
| 40 | 332311 | PREFABRICATED METAL BUILDING AND COMPONENT MANUFACTURING | $100,000 | 1 |
| 41 | 337214 | OFFICE FURNITURE (EXCEPT WOOD) MANUFACTURING | $80,524 | 4 |
| 42 | 325414 | BIOLOGICAL PRODUCT (EXCEPT DIAGNOSTIC) MANUFACTURING | $77,346 | 1 |
| 43 | 541930 | TRANSLATION AND INTERPRETATION SERVICES | $71,428 | 1 |
| 44 | 336411 | AIRCRAFT MANUFACTURING | $66,868 | 1 |
| 45 | 532112 | PASSENGER CAR LEASING | $62,016 | 1 |
| 46 | 238210 | ELECTRICAL CONTRACTORS AND OTHER WIRING INSTALLATION CONTRACTORS | $49,800 | 1 |
| 47 | 492110 | COURIERS AND EXPRESS DELIVERY SERVICES | $49,000 | 4 |
| 48 | 334119 | OTHER COMPUTER PERIPHERAL EQUIPMENT MANUFACTURING | $21,440 | 1 |
| 49 | 332323 | ORNAMENTAL AND ARCHITECTURAL METAL WORK MANUFACTURING | $21,090 | 1 |
| 50 | 511120 | PERIODICAL PUBLISHERS | $17,100 | 1 |
| 51 | 561720 | JANITORIAL SERVICES | $11,676 | 1 |
| 52 | 531120 | LESSORS OF NONRESIDENTIAL BUILDINGS (EXCEPT MINIWAREHOUSES) | $3,473 | 1 |
| 53 | 561492 | COURT REPORTING AND STENOTYPE SERVICES | $2,047 | 3 |
| 54 | 517311 | WIRED TELECOMMUNICATIONS CARRIERS | $579 | 1 |