| 1 | 561210 | FACILITIES SUPPORT SERVICES | $17,385,377,663 | 1 |
| 2 | 541519 | OTHER COMPUTER RELATED SERVICES | $297,718,518 | 6 |
| 3 | 336413 | OTHER AIRCRAFT PARTS AND AUXILIARY EQUIPMENT MANUFACTURING | $157,254,829 | 5 |
| 4 | 523110 | INVESTMENT BANKING AND SECURITIES DEALING | $83,868,385 | 1 |
| 5 | 336411 | AIRCRAFT MANUFACTURING | $72,447,581 | 1 |
| 6 | 541990 | ALL OTHER PROFESSIONAL, SCIENTIFIC, AND TECHNICAL SERVICES | $54,293,423 | 1 |
| 7 | 541611 | ADMINISTRATIVE MANAGEMENT AND GENERAL MANAGEMENT CONSULTING SERVICES | $18,274,203 | 2 |
| 8 | 561612 | SECURITY GUARDS AND PATROL SERVICES | $4,600,278 | 1 |
| 9 | 221112 | FOSSIL FUEL ELECTRIC POWER GENERATION | $4,263,799 | 1 |
| 10 | 337215 | SHOWCASE, PARTITION, SHELVING, AND LOCKER MANUFACTURING | $3,917,508 | 1 |
| 11 | 562910 | REMEDIATION SERVICES | $3,102,219 | 3 |
| 12 | 541712 | RESEARCH AND DEVELOPMENT IN THE PHYSICAL, ENGINEERING, AND LIFE SCIENCES (EXCEPT BIOTECHNOLOGY) | $2,860,328 | 2 |
| 13 | 333924 | INDUSTRIAL TRUCK, TRACTOR, TRAILER, AND STACKER MACHINERY MANUFACTURING | $1,738,501 | 1 |
| 14 | 339112 | SURGICAL AND MEDICAL INSTRUMENT MANUFACTURING | $1,091,665 | 3 |
| 15 | 541511 | CUSTOM COMPUTER PROGRAMMING SERVICES | $958,428 | 1 |
| 16 | 325412 | PHARMACEUTICAL PREPARATION MANUFACTURING | $759,707 | 1 |
| 17 | 541310 | ARCHITECTURAL SERVICES | $670,392 | 2 |
| 18 | 541199 | ALL OTHER LEGAL SERVICES | $664,726 | 1 |
| 19 | 334290 | OTHER COMMUNICATIONS EQUIPMENT MANUFACTURING | $337,039 | 1 |
| 20 | 313210 | BROADWOVEN FABRIC MILLS | $299,334 | 1 |
| 21 | 541330 | ENGINEERING SERVICES | $157,725 | 4 |
| 22 | 423310 | LUMBER, PLYWOOD, MILLWORK, AND WOOD PANEL MERCHANT WHOLESALERS | $142,597 | 3 |
| 23 | 334111 | ELECTRONIC COMPUTER MANUFACTURING | $130,672 | 2 |
| 24 | 339113 | SURGICAL APPLIANCE AND SUPPLIES MANUFACTURING | $125,063 | 1 |
| 25 | 238990 | ALL OTHER SPECIALTY TRADE CONTRACTORS | $60,700 | 4 |
| 26 | 334310 | AUDIO AND VIDEO EQUIPMENT MANUFACTURING | $60,188 | 1 |
| 27 | 541380 | TESTING LABORATORIES AND SERVICES | $49,838 | 1 |
| 28 | 326113 | UNLAMINATED PLASTICS FILM AND SHEET (EXCEPT PACKAGING) MANUFACTURING | $45,746 | 2 |
| 29 | 444190 | OTHER BUILDING MATERIAL DEALERS | $35,092 | 1 |
| 30 | 423690 | OTHER ELECTRONIC PARTS AND EQUIPMENT MERCHANT WHOLESALERS | $31,711 | 1 |
| 31 | 811219 | OTHER ELECTRONIC AND PRECISION EQUIPMENT REPAIR AND MAINTENANCE | $29,233 | 2 |
| 32 | 325120 | INDUSTRIAL GAS MANUFACTURING | $27,903 | 1 |
| 33 | 562119 | OTHER WASTE COLLECTION | $27,406 | 3 |
| 34 | 333316 | PHOTOGRAPHIC AND PHOTOCOPYING EQUIPMENT MANUFACTURING | $26,543 | 1 |
| 35 | 511210 | SOFTWARE PUBLISHERS | $26,140 | 1 |
| 36 | 238320 | PAINTING AND WALL COVERING CONTRACTORS | $20,735 | 3 |
| 37 | 332722 | BOLT, NUT, SCREW, RIVET, AND WASHER MANUFACTURING | $16,169 | 2 |
| 38 | 334511 | SEARCH, DETECTION, NAVIGATION, GUIDANCE, AERONAUTICAL, AND NAUTICAL SYSTEM AND INSTRUMENT MANUFACTURING | $14,520 | 1 |
| 39 | 562991 | SEPTIC TANK AND RELATED SERVICES | $12,800 | 1 |
| 40 | 334516 | ANALYTICAL LABORATORY INSTRUMENT MANUFACTURING | $11,441 | 1 |
| 41 | 332912 | FLUID POWER VALVE AND HOSE FITTING MANUFACTURING | $7,229 | 1 |
| 42 | 541620 | ENVIRONMENTAL CONSULTING SERVICES | $7,000 | 1 |
| 43 | 611430 | PROFESSIONAL AND MANAGEMENT DEVELOPMENT TRAINING | $4,788 | 1 |
| 44 | 332112 | NONFERROUS FORGING | $2,616 | 1 |
| 45 | 561492 | COURT REPORTING AND STENOTYPE SERVICES | $1,780 | 1 |