| 1 | 236210 | INDUSTRIAL BUILDING CONSTRUCTION | $1,349,853,665 | 1 |
| 2 | 541330 | ENGINEERING SERVICES | $313,990,329 | 15 |
| 3 | 334511 | SEARCH, DETECTION, NAVIGATION, GUIDANCE, AERONAUTICAL, AND NAUTICAL SYSTEM AND INSTRUMENT MANUFACTURING | $204,814,737 | 4 |
| 4 | 541714 | RESEARCH AND DEVELOPMENT IN BIOTECHNOLOGY (EXCEPT NANOBIOTECHNOLOGY) | $167,331,983 | 3 |
| 5 | 523920 | PORTFOLIO MANAGEMENT | $153,456,376 | 2 |
| 6 | 334519 | OTHER MEASURING AND CONTROLLING DEVICE MANUFACTURING | $136,112,728 | 2 |
| 7 | 611310 | COLLEGES, UNIVERSITIES, AND PROFESSIONAL SCHOOLS | $108,935,425 | 2 |
| 8 | 541715 | RESEARCH AND DEVELOPMENT IN THE PHYSICAL, ENGINEERING, AND LIFE SCIENCES (EXCEPT NANOTECHNOLOGY AND BIOTECHNOLOGY) | $87,655,239 | 6 |
| 9 | 611519 | OTHER TECHNICAL AND TRADE SCHOOLS | $63,958,848 | 1 |
| 10 | 493110 | GENERAL WAREHOUSING AND STORAGE | $47,730,904 | 4 |
| 11 | 523110 | INVESTMENT BANKING AND SECURITIES DEALING | $47,201,117 | 2 |
| 12 | 541690 | OTHER SCIENTIFIC AND TECHNICAL CONSULTING SERVICES | $34,578,291 | 2 |
| 13 | 541990 | ALL OTHER PROFESSIONAL, SCIENTIFIC, AND TECHNICAL SERVICES | $34,371,334 | 23 |
| 14 | 561421 | TELEPHONE ANSWERING SERVICES | $32,875,579 | 1 |
| 15 | 541512 | COMPUTER SYSTEMS DESIGN SERVICES | $26,130,543 | 2 |
| 16 | 236220 | COMMERCIAL AND INSTITUTIONAL BUILDING CONSTRUCTION | $21,918,440 | 6 |
| 17 | 541620 | ENVIRONMENTAL CONSULTING SERVICES | $14,793,308 | 6 |
| 18 | 336412 | AIRCRAFT ENGINE AND ENGINE PARTS MANUFACTURING | $11,944,610 | 2 |
| 19 | 334517 | IRRADIATION APPARATUS MANUFACTURING | $6,931,875 | 1 |
| 20 | 334516 | ANALYTICAL LABORATORY INSTRUMENT MANUFACTURING | $6,897,178 | 10 |
| 21 | 541611 | ADMINISTRATIVE MANAGEMENT AND GENERAL MANAGEMENT CONSULTING SERVICES | $5,647,027 | 6 |
| 22 | 541380 | TESTING LABORATORIES AND SERVICES | $5,105,069 | 7 |
| 23 | 562910 | REMEDIATION SERVICES | $3,995,542 | 3 |
| 24 | 315990 | APPAREL ACCESSORIES AND OTHER APPAREL MANUFACTURING | $3,309,628 | 1 |
| 25 | 221330 | STEAM AND AIR-CONDITIONING SUPPLY | $3,191,801 | 1 |
| 26 | 541519 | OTHER COMPUTER RELATED SERVICES | $3,143,635 | 5 |
| 27 | 624190 | OTHER INDIVIDUAL AND FAMILY SERVICES | $2,888,947 | 1 |
| 28 | 541199 | ALL OTHER LEGAL SERVICES | $2,792,204 | 4 |
| 29 | 923120 | ADMINISTRATION OF PUBLIC HEALTH PROGRAMS | $2,689,286 | 1 |
| 30 | 541310 | ARCHITECTURAL SERVICES | $1,928,814 | 3 |
| 31 | 221122 | ELECTRIC POWER DISTRIBUTION | $1,762,072 | 1 |
| 32 | 237310 | HIGHWAY, STREET, AND BRIDGE CONSTRUCTION | $1,189,751 | 8 |
| 33 | 541910 | MARKETING RESEARCH AND PUBLIC OPINION POLLING | $1,096,120 | 1 |
| 34 | 238220 | PLUMBING, HEATING, AND AIR-CONDITIONING CONTRACTORS | $1,094,653 | 1 |
| 35 | 541713 | RESEARCH AND DEVELOPMENT IN NANOTECHNOLOGY | $1,084,145 | 1 |
| 36 | 541511 | CUSTOM COMPUTER PROGRAMMING SERVICES | $825,215 | 2 |
| 37 | 611430 | PROFESSIONAL AND MANAGEMENT DEVELOPMENT TRAINING | $768,809 | 1 |
| 38 | 541720 | RESEARCH AND DEVELOPMENT IN THE SOCIAL SCIENCES AND HUMANITIES | $698,305 | 1 |
| 39 | 325412 | PHARMACEUTICAL PREPARATION MANUFACTURING | $656,041 | 2 |
| 40 | 334513 | INSTRUMENTS AND RELATED PRODUCTS MANUFACTURING FOR MEASURING, DISPLAYING, AND CONTROLLING INDUSTRIAL PROCESS VARIABLES | $600,000 | 1 |
| 41 | 561730 | LANDSCAPING SERVICES | $523,425 | 2 |
| 42 | 519190 | ALL OTHER INFORMATION SERVICES | $292,342 | 1 |
| 43 | 333999 | ALL OTHER MISCELLANEOUS GENERAL PURPOSE MACHINERY MANUFACTURING | $279,513 | 3 |
| 44 | 337214 | OFFICE FURNITURE (EXCEPT WOOD) MANUFACTURING | $265,382 | 1 |
| 45 | 325413 | IN-VITRO DIAGNOSTIC SUBSTANCE MANUFACTURING | $162,269 | 1 |
| 46 | 334220 | RADIO AND TELEVISION BROADCASTING AND WIRELESS COMMUNICATIONS EQUIPMENT MANUFACTURING | $81,736 | 1 |
| 47 | 561720 | JANITORIAL SERVICES | $75,419 | 3 |
| 48 | 484210 | USED HOUSEHOLD AND OFFICE GOODS MOVING | $72,433 | 1 |
| 49 | 339112 | SURGICAL AND MEDICAL INSTRUMENT MANUFACTURING | $70,500 | 1 |
| 50 | 541612 | HUMAN RESOURCES CONSULTING SERVICES (2007), HUMAN RESOURCES AND EXECUTIVE SEARCH CONSULTING SERVICES (2002) | $59,065 | 1 |
| 51 | 335312 | MOTOR AND GENERATOR MANUFACTURING | $52,275 | 1 |
| 52 | 335999 | ALL OTHER MISCELLANEOUS ELECTRICAL EQUIPMENT AND COMPONENT MANUFACTURING | $49,154 | 1 |
| 53 | 811219 | OTHER ELECTRONIC AND PRECISION EQUIPMENT REPAIR AND MAINTENANCE | $41,917 | 2 |
| 54 | 561611 | INVESTIGATION AND PERSONAL BACKGROUND CHECK SERVICES | $39,431 | 1 |
| 55 | 332420 | METAL TANK (HEAVY GAUGE) MANUFACTURING | $26,368 | 1 |
| 56 | 221310 | WATER SUPPLY AND IRRIGATION SYSTEMS | $22,845 | 1 |
| 57 | 333316 | PHOTOGRAPHIC AND PHOTOCOPYING EQUIPMENT MANUFACTURING | $19,833 | 1 |
| 58 | 926150 | REGULATION, LICENSING, AND INSPECTION OF MISCELLANEOUS COMMERCIAL SECTORS | $17,950 | 1 |
| 59 | 713990 | ALL OTHER AMUSEMENT AND RECREATION INDUSTRIES | $15,000 | 2 |
| 60 | 332510 | HARDWARE MANUFACTURING | $14,471 | 1 |
| 61 | 238320 | PAINTING AND WALL COVERING CONTRACTORS | $13,350 | 3 |
| 62 | 561621 | SECURITY SYSTEMS SERVICES (EXCEPT LOCKSMITHS) | $12,828 | 2 |
| 63 | 238190 | OTHER FOUNDATION, STRUCTURE, AND BUILDING EXTERIOR CONTRACTORS | $10,814 | 1 |
| 64 | 562998 | ALL OTHER MISCELLANEOUS WASTE MANAGEMENT SERVICES | $10,716 | 1 |
| 65 | 327910 | ABRASIVE PRODUCT MANUFACTURING | $8,346 | 2 |
| 66 | 532310 | GENERAL RENTAL CENTERS | $7,725 | 1 |
| 67 | 325998 | ALL OTHER MISCELLANEOUS CHEMICAL PRODUCT AND PREPARATION MANUFACTURING | $7,193 | 1 |
| 68 | 238990 | ALL OTHER SPECIALTY TRADE CONTRACTORS | $7,050 | 1 |
| 69 | 334290 | OTHER COMMUNICATIONS EQUIPMENT MANUFACTURING | $5,049 | 1 |
| 70 | 923110 | ADMINISTRATION OF EDUCATION PROGRAMS | $4,112 | 1 |
| 71 | 811490 | OTHER PERSONAL AND HOUSEHOLD GOODS REPAIR AND MAINTENANCE | $2,855 | 1 |
| 72 | 721110 | HOTELS (EXCEPT CASINO HOTELS) AND MOTELS | $2,800 | 1 |
| 73 | 561492 | COURT REPORTING AND STENOTYPE SERVICES | $1,685 | 3 |