| 1 | 236220 | COMMERCIAL AND INSTITUTIONAL BUILDING CONSTRUCTION | $683,305,432 | 4 |
| 2 | 561612 | SECURITY GUARDS AND PATROL SERVICES | $429,908,517 | 23 |
| 3 | 541330 | ENGINEERING SERVICES | $46,677,964 | 4 |
| 4 | 541512 | COMPUTER SYSTEMS DESIGN SERVICES | $34,601,678 | 3 |
| 5 | 541612 | HUMAN RESOURCES CONSULTING SERVICES (2007), HUMAN RESOURCES AND EXECUTIVE SEARCH CONSULTING SERVICES (2002) | $20,649,329 | 3 |
| 6 | 541511 | CUSTOM COMPUTER PROGRAMMING SERVICES | $11,323,758 | 3 |
| 7 | 336611 | SHIP BUILDING AND REPAIRING | $10,047,493 | 3 |
| 8 | 541611 | ADMINISTRATIVE MANAGEMENT AND GENERAL MANAGEMENT CONSULTING SERVICES | $9,478,905 | 4 |
| 9 | 541350 | BUILDING INSPECTION SERVICES | $8,490,230 | 1 |
| 10 | 336411 | AIRCRAFT MANUFACTURING | $7,753,832 | 1 |
| 11 | 541519 | OTHER COMPUTER RELATED SERVICES | $5,176,930 | 5 |
| 12 | 334511 | SEARCH, DETECTION, NAVIGATION, GUIDANCE, AERONAUTICAL, AND NAUTICAL SYSTEM AND INSTRUMENT MANUFACTURING | $5,161,973 | 2 |
| 13 | 238990 | ALL OTHER SPECIALTY TRADE CONTRACTORS | $4,879,507 | 2 |
| 14 | 811121 | AUTOMOTIVE BODY, PAINT, AND INTERIOR REPAIR AND MAINTENANCE | $3,816,917 | 1 |
| 15 | 541614 | PROCESS, PHYSICAL DISTRIBUTION, AND LOGISTICS CONSULTING SERVICES | $3,103,835 | 1 |
| 16 | 511210 | SOFTWARE PUBLISHERS | $3,096,984 | 1 |
| 17 | 561990 | ALL OTHER SUPPORT SERVICES | $2,892,600 | 2 |
| 18 | 561720 | JANITORIAL SERVICES | $2,451,958 | 1 |
| 19 | 336413 | OTHER AIRCRAFT PARTS AND AUXILIARY EQUIPMENT MANUFACTURING | $969,779 | 18 |
| 20 | 488330 | NAVIGATIONAL SERVICES TO SHIPPING | $900,000 | 1 |
| 21 | 541410 | INTERIOR DESIGN SERVICES | $763,186 | 1 |
| 22 | 332992 | SMALL ARMS AMMUNITION MANUFACTURING | $720,035 | 1 |
| 23 | 334111 | ELECTRONIC COMPUTER MANUFACTURING | $707,728 | 2 |
| 24 | 531110 | LESSORS OF RESIDENTIAL BUILDINGS AND DWELLINGS | $647,832 | 5 |
| 25 | 541211 | OFFICES OF CERTIFIED PUBLIC ACCOUNTANTS | $564,533 | 1 |
| 26 | 238210 | ELECTRICAL CONTRACTORS AND OTHER WIRING INSTALLATION CONTRACTORS | $537,124 | 2 |
| 27 | 541990 | ALL OTHER PROFESSIONAL, SCIENTIFIC, AND TECHNICAL SERVICES | $516,904 | 1 |
| 28 | 336612 | BOAT BUILDING | $444,245 | 1 |
| 29 | 334516 | ANALYTICAL LABORATORY INSTRUMENT MANUFACTURING | $270,000 | 1 |
| 30 | 721110 | HOTELS (EXCEPT CASINO HOTELS) AND MOTELS | $262,488 | 1 |
| 31 | 237990 | OTHER HEAVY AND CIVIL ENGINEERING CONSTRUCTION | $255,000 | 1 |
| 32 | 332710 | MACHINE SHOPS | $227,040 | 2 |
| 33 | 237130 | POWER AND COMMUNICATION LINE AND RELATED STRUCTURES CONSTRUCTION | $173,405 | 1 |
| 34 | 424320 | MEN'S AND BOYS' CLOTHING AND FURNISHINGS MERCHANT WHOLESALERS | $158,000 | 1 |
| 35 | 532490 | OTHER COMMERCIAL AND INDUSTRIAL MACHINERY AND EQUIPMENT RENTAL AND LEASING | $155,403 | 3 |
| 36 | 611430 | PROFESSIONAL AND MANAGEMENT DEVELOPMENT TRAINING | $129,090 | 1 |
| 37 | 518210 | DATA PROCESSING, HOSTING, AND RELATED SERVICES | $116,930 | 2 |
| 38 | 721211 | RV (RECREATIONAL VEHICLE) PARKS AND CAMPGROUNDS | $110,150 | 1 |
| 39 | 488190 | OTHER SUPPORT ACTIVITIES FOR AIR TRANSPORTATION | $101,383 | 2 |
| 40 | 238220 | PLUMBING, HEATING, AND AIR-CONDITIONING CONTRACTORS | $99,898 | 1 |
| 41 | 236118 | RESIDENTIAL REMODELERS | $94,500 | 1 |
| 42 | 334290 | OTHER COMMUNICATIONS EQUIPMENT MANUFACTURING | $87,211 | 1 |
| 43 | 334220 | RADIO AND TELEVISION BROADCASTING AND WIRELESS COMMUNICATIONS EQUIPMENT MANUFACTURING | $80,267 | 2 |
| 44 | 541930 | TRANSLATION AND INTERPRETATION SERVICES | $78,476 | 1 |
| 45 | 315210 | CUT AND SEW APPAREL CONTRACTORS | $72,391 | 1 |
| 46 | 531390 | OTHER ACTIVITIES RELATED TO REAL ESTATE | $56,450 | 1 |
| 47 | 332994 | SMALL ARMS, ORDNANCE, AND ORDNANCE ACCESSORIES MANUFACTURING | $38,304 | 1 |
| 48 | 492110 | COURIERS AND EXPRESS DELIVERY SERVICES | $35,000 | 3 |
| 49 | 511120 | PERIODICAL PUBLISHERS | $23,460 | 2 |
| 50 | 517911 | TELECOMMUNICATIONS RESELLERS | $22,444 | 1 |
| 51 | 423420 | OFFICE EQUIPMENT MERCHANT WHOLESALERS | $21,861 | 1 |
| 52 | 532420 | OFFICE MACHINERY AND EQUIPMENT RENTAL AND LEASING | $16,800 | 1 |
| 53 | 561210 | FACILITIES SUPPORT SERVICES | $16,781 | 1 |
| 54 | 493110 | GENERAL WAREHOUSING AND STORAGE | $15,874 | 1 |
| 55 | 221122 | ELECTRIC POWER DISTRIBUTION | $15,600 | 1 |
| 56 | 562111 | SOLID WASTE COLLECTION | $15,200 | 1 |
| 57 | 339999 | ALL OTHER MISCELLANEOUS MANUFACTURING | $13,175 | 1 |
| 58 | 562991 | SEPTIC TANK AND RELATED SERVICES | $12,726 | 1 |
| 59 | 541199 | ALL OTHER LEGAL SERVICES | $10,000 | 1 |
| 60 | 221210 | NATURAL GAS DISTRIBUTION | $3,000 | 1 |
| 61 | 926130 | REGULATION AND ADMINISTRATION OF COMMUNICATIONS, ELECTRIC, GAS, AND OTHER UTILITIES | $2,800 | 2 |
| 62 | 517410 | SATELLITE TELECOMMUNICATIONS | $1,800 | 1 |
| 63 | 561621 | SECURITY SYSTEMS SERVICES (EXCEPT LOCKSMITHS) | $749 | 1 |
| 64 | 517311 | WIRED TELECOMMUNICATIONS CARRIERS | $579 | 1 |