| 1 | 541512 | COMPUTER SYSTEMS DESIGN SERVICES | $217,472,871 | 1 |
| 2 | 541330 | ENGINEERING SERVICES | $22,038,057 | 5 |
| 3 | 237310 | HIGHWAY, STREET, AND BRIDGE CONSTRUCTION | $20,057,171 | 1 |
| 4 | 561210 | FACILITIES SUPPORT SERVICES | $9,487,870 | 1 |
| 5 | 811310 | COMMERCIAL AND INDUSTRIAL MACHINERY AND EQUIPMENT (EXCEPT AUTOMOTIVE AND ELECTRONIC) REPAIR AND MAINTENANCE | $412,701 | 3 |
| 6 | 541310 | ARCHITECTURAL SERVICES | $385,361 | 1 |
| 7 | 562111 | SOLID WASTE COLLECTION | $276,781 | 2 |
| 8 | 621511 | MEDICAL LABORATORIES | $240,896 | 1 |
| 9 | 561720 | JANITORIAL SERVICES | $204,215 | 1 |
| 10 | 541513 | COMPUTER FACILITIES MANAGEMENT SERVICES | $171,204 | 1 |
| 11 | 561320 | TEMPORARY HELP SERVICES | $164,850 | 1 |
| 12 | 611310 | COLLEGES, UNIVERSITIES, AND PROFESSIONAL SCHOOLS | $162,861 | 1 |
| 13 | 541519 | OTHER COMPUTER RELATED SERVICES | $134,172 | 1 |
| 14 | 334111 | ELECTRONIC COMPUTER MANUFACTURING | $112,493 | 2 |
| 15 | 562991 | SEPTIC TANK AND RELATED SERVICES | $111,929 | 6 |
| 16 | 336611 | SHIP BUILDING AND REPAIRING | $64,751 | 9 |
| 17 | 561621 | SECURITY SYSTEMS SERVICES (EXCEPT LOCKSMITHS) | $57,710 | 2 |
| 18 | 711219 | OTHER SPECTATOR SPORTS | $43,892 | 1 |
| 19 | 238210 | ELECTRICAL CONTRACTORS AND OTHER WIRING INSTALLATION CONTRACTORS | $38,830 | 1 |
| 20 | 531190 | LESSORS OF OTHER REAL ESTATE PROPERTY | $36,250 | 1 |
| 21 | 238990 | ALL OTHER SPECIALTY TRADE CONTRACTORS | $34,304 | 5 |
| 22 | 511210 | SOFTWARE PUBLISHERS | $32,608 | 2 |
| 23 | 561730 | LANDSCAPING SERVICES | $25,405 | 1 |
| 24 | 336212 | TRUCK TRAILER MANUFACTURING | $25,379 | 1 |
| 25 | 339920 | SPORTING AND ATHLETIC GOODS MANUFACTURING | $20,736 | 1 |
| 26 | 332999 | ALL OTHER MISCELLANEOUS FABRICATED METAL PRODUCT MANUFACTURING | $18,612 | 1 |
| 27 | 518210 | DATA PROCESSING, HOSTING, AND RELATED SERVICES | $18,573 | 1 |
| 28 | 238330 | FLOORING CONTRACTORS | $18,160 | 1 |
| 29 | 336413 | OTHER AIRCRAFT PARTS AND AUXILIARY EQUIPMENT MANUFACTURING | $16,803 | 1 |
| 30 | 442210 | FLOOR COVERING STORES | $16,780 | 1 |
| 31 | 813910 | BUSINESS ASSOCIATIONS | $15,400 | 3 |
| 32 | 333316 | PHOTOGRAPHIC AND PHOTOCOPYING EQUIPMENT MANUFACTURING | $15,392 | 2 |
| 33 | 541620 | ENVIRONMENTAL CONSULTING SERVICES | $14,200 | 3 |
| 34 | 337215 | SHOWCASE, PARTITION, SHELVING, AND LOCKER MANUFACTURING | $13,002 | 1 |
| 35 | 444120 | PAINT AND WALLPAPER STORES | $11,711 | 1 |
| 36 | 561611 | INVESTIGATION AND PERSONAL BACKGROUND CHECK SERVICES | $10,830 | 1 |
| 37 | 519130 | INTERNET PUBLISHING AND BROADCASTING AND WEB SEARCH PORTALS | $9,734 | 1 |
| 38 | 561710 | EXTERMINATING AND PEST CONTROL SERVICES | $5,895 | 3 |
| 39 | 561790 | OTHER SERVICES TO BUILDINGS AND DWELLINGS | $5,419 | 2 |
| 40 | 454310 | FUEL DEALERS | $5,098 | 1 |
| 41 | 423610 | ELECTRICAL APPARATUS AND EQUIPMENT, WIRING SUPPLIES, AND RELATED EQUIPMENT MERCHANT WHOLESALERS | $4,900 | 1 |
| 42 | 333315 | PHOTOGRAPHIC AND PHOTOCOPYING EQUIPMENT MANUFACTURING | $4,420 | 2 |
| 43 | 333921 | ELEVATOR AND MOVING STAIRWAY MANUFACTURING | $4,343 | 1 |
| 44 | 532490 | OTHER COMMERCIAL AND INDUSTRIAL MACHINERY AND EQUIPMENT RENTAL AND LEASING | $3,913 | 1 |
| 45 | 333293 | PRINTING MACHINERY AND EQUIPMENT MANUFACTURING | $2,741 | 1 |
| 46 | 334512 | AUTOMATIC ENVIRONMENTAL CONTROL MANUFACTURING FOR RESIDENTIAL, COMMERCIAL, AND APPLIANCE USE | $2,500 | 1 |