| 336413 | Other Aircraft Parts and Auxiliary Equipment Manufacturing | 397 |
| 237310 | Highway, Street, and Bridge Construction | 284 |
| 333998 | All Other Miscellaneous General Purpose Machinery Manufacturing | 227 |
| 334417 | Electronic Connector Manufacturing | 189 |
| 332911 | Industrial Valve Manufacturing | 139 |
| 237990 | Other Heavy and Civil Engineering Construction | 131 |
| 334412 | Bare Printed Circuit Board Manufacturing | 124 |
| 541715 | Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) | 123 |
| 332510 | Hardware Manufacturing | 114 |
| 236220 | Commercial and Institutional Building Construction | 108 |
| 334419 | Other Electronic Component Manufacturing | 105 |
| 335312 | Motor and Generator Manufacturing | 100 |
| 332919 | Other Metal Valve and Pipe Fitting Manufacturing | 95 |
| 335931 | Current-Carrying Wiring Device Manufacturing | 90 |
| 336412 | Aircraft Engine and Engine Parts Manufacturing | 88 |
| 339991 | Gasket, Packing, and Sealing Device Manufacturing | 87 |
| 333613 | Mechanical Power Transmission Equipment Manufacturing | 86 |
| 334511 | Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing | 83 |
| 332722 | Bolt, Nut, Screw, Rivet, and Washer Manufacturing | 78 |
| 335313 | Switchgear and Switchboard Apparatus Manufacturing | 77 |
| 334220 | Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing | 74 |
| 336390 | Other Motor Vehicle Parts Manufacturing | 68 |
| 334416 | Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing | 68 |
| 335314 | Relay and Industrial Control Manufacturing | 65 |
| 531120 | Lessors of Nonresidential Buildings (except Miniwarehouses) | 63 |
| 333912 | Air and Gas Compressor Manufacturing | 63 |
| 335999 | All Other Miscellaneous Electrical Equipment and Component Manufacturing | 60 |
| 333914 | Measuring, Dispensing, and Other Pumping Equipment Manufacturing | 56 |
| 333618 | Other Engine Equipment Manufacturing | 56 |
| 333310 | Commercial and Service Industry Machinery Manufacturing | 56 |
| 333996 | Fluid Power Pump and Motor Manufacturing | 53 |
| 541330 | Engineering Services | 52 |
| 334413 | Semiconductor and Related Device Manufacturing | 51 |
| 336611 | Ship Building and Repairing | 50 |
| 335311 | Power, Distribution, and Specialty Transformer Manufacturing | 50 |
| 334290 | Other Communications Equipment Manufacturing | 48 |
| 332999 | All Other Miscellaneous Fabricated Metal Product Manufacturing | 48 |
| 332994 | Small Arms, Ordnance, and Ordnance Accessories Manufacturing | 48 |
| 334519 | Other Measuring and Controlling Device Manufacturing | 47 |
| 333415 | Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing | 47 |
| 334515 | Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals | 38 |
| 811310 | Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance | 36 |
| 332996 | Fabricated Pipe and Pipe Fitting Manufacturing | 35 |
| 333413 | Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing | 33 |
| 238220 | Plumbing, Heating, and Air-Conditioning Contractors | 33 |
| 334514 | Totalizing Fluid Meter and Counting Device Manufacturing | 32 |
| 332991 | Ball and Roller Bearing Manufacturing | 32 |
| 326220 | Rubber and Plastics Hoses and Belting Manufacturing | 32 |
| 334516 | Analytical Laboratory Instrument Manufacturing | 30 |
| 333612 | Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing | 29 |
| 334310 | Audio and Video Equipment Manufacturing | 26 |
| 811210 | Electronic and Precision Equipment Repair and Maintenance | 25 |
| 334418 | Printed Circuit Assembly (Electronic Assembly) Manufacturing | 25 |
| 339113 | Surgical Appliance and Supplies Manufacturing | 24 |
| 332439 | Other Metal Container Manufacturing | 24 |
| 336320 | Motor Vehicle Electrical and Electronic Equipment Manufacturing | 23 |
| 336310 | Motor Vehicle Gasoline Engine and Engine Parts Manufacturing | 22 |
| 238210 | Electrical Contractors and Other Wiring Installation Contractors | 21 |
| 561730 | Landscaping Services | 19 |
| 332710 | Machine Shops | 19 |
| 541990 | All Other Professional, Scientific, and Technical Services | 18 |
| 336350 | Motor Vehicle Transmission and Power Train Parts Manufacturing | 18 |
| 334513 | Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 18 |
| 237110 | Water and Sewer Line and Related Structures Construction | 18 |
| 561210 | Facilities Support Services | 17 |
| 541519 | Other Computer Related Services | 17 |
| 336411 | Aircraft Manufacturing | 17 |
| 335910 | Battery Manufacturing | 17 |
| 333923 | Overhead Traveling Crane, Hoist, and Monorail System Manufacturing | 17 |
| 326122 | Plastics Pipe and Pipe Fitting Manufacturing | 17 |
| 513210 | Software Publishers | 16 |
| 325920 | Explosives Manufacturing | 16 |
| 334111 | Electronic Computer Manufacturing | 15 |
| 333414 | Heating Equipment (except Warm Air Furnaces) Manufacturing | 15 |
| 326299 | All Other Rubber Product Manufacturing | 15 |
| 332410 | Power Boiler and Heat Exchanger Manufacturing | 14 |
| 332216 | Saw Blade and Handtool Manufacturing | 14 |
| 623990 | Other Residential Care Facilities | 13 |
| 561720 | Janitorial Services | 13 |
| 541714 | Research and Development in Biotechnology (except Nanobiotechnology) | 13 |
| 336992 | Military Armored Vehicle, Tank, and Tank Component Manufacturing | 13 |
| 541512 | Computer Systems Design Services | 12 |
| 488190 | Other Support Activities for Air Transportation | 12 |
| 336612 | Boat Building | 12 |
| 238990 | All Other Specialty Trade Contractors | 12 |
| 541380 | Testing Laboratories and Services | 11 |
| 517111 | Wired Telecommunications Carriers | 11 |
| 336360 | Motor Vehicle Seating and Interior Trim Manufacturing | 11 |
| 336330 | Motor Vehicle Steering and Suspension Components (except Spring) Manufacturing | 11 |
| 332613 | Spring Manufacturing | 11 |
| 561621 | Security Systems Services (except Locksmiths) | 10 |
| 335929 | Other Communication and Energy Wire Manufacturing | 10 |
| 333611 | Turbine and Turbine Generator Set Units Manufacturing | 10 |
| 332618 | Other Fabricated Wire Product Manufacturing | 10 |
| 332112 | Nonferrous Forging | 10 |
| 238160 | Roofing Contractors | 10 |
| 562998 | All Other Miscellaneous Waste Management Services | 9 |
| 562910 | Remediation Services | 9 |
| 561612 | Security Guards and Patrol Services | 9 |
| 541310 | Architectural Services | 9 |
| 53 | | 9 |
| 339999 | All Other Miscellaneous Manufacturing | 9 |
| 332912 | Fluid Power Valve and Hose Fitting Manufacturing | 9 |
| 331491 | Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding | 9 |
| 325412 | Pharmaceutical Preparation Manufacturing | 9 |
| 238290 | Other Building Equipment Contractors | 9 |
| 113310 | Logging | 9 |
| 928120 | International Affairs | 8 |
| 541110 | Offices of Lawyers | 8 |
| 524114 | Direct Health and Medical Insurance Carriers | 8 |
| 336211 | Motor Vehicle Body Manufacturing | 8 |
| 331318 | Other Aluminum Rolling, Drawing, and Extruding | 8 |
| 314999 | All Other Miscellaneous Textile Product Mills | 8 |
| 541350 | Building Inspection Services | 7 |
| 333924 | Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing | 7 |
| 333120 | Construction Machinery Manufacturing | 7 |
| 331210 | Iron and Steel Pipe and Tube Manufacturing from Purchased Steel | 7 |
| 325998 | All Other Miscellaneous Chemical Product and Preparation Manufacturing | 7 |
| 325120 | Industrial Gas Manufacturing | 7 |
| 237120 | Oil and Gas Pipeline and Related Structures Construction | 7 |
| 713990 | All Other Amusement and Recreation Industries | 6 |
| 562111 | Solid Waste Collection | 6 |
| 531190 | Lessors of Other Real Estate Property | 6 |
| 483111 | Deep Sea Freight Transportation | 6 |
| 481211 | Nonscheduled Chartered Passenger Air Transportation | 6 |
| 333992 | Welding and Soldering Equipment Manufacturing | 6 |
| 332321 | Metal Window and Door Manufacturing | 6 |
| 332311 | Prefabricated Metal Building and Component Manufacturing | 6 |
| 326211 | Tire Manufacturing (except Retreading) | 6 |
| 315990 | Apparel Accessories and Other Apparel Manufacturing | 6 |
| 314994 | Rope, Cordage, Twine, Tire Cord, and Tire Fabric Mills | 6 |
| 221118 | Other Electric Power Generation | 6 |
| 622110 | General Medical and Surgical Hospitals | 5 |
| 621511 | Medical Laboratories | 5 |
| 621111 | Offices of Physicians (except Mental Health Specialists) | 5 |
| 561990 | All Other Support Services | 5 |
| 561710 | Exterminating and Pest Control Services | 5 |
| 541720 | Research and Development in the Social Sciences and Humanities | 5 |
| 54171 | | 5 |
| 541614 | Process, Physical Distribution, and Logistics Consulting Services | 5 |
| 532490 | Other Commercial and Industrial Machinery and Equipment Rental and Leasing | 5 |
| 517121 | Telecommunications Resellers | 5 |
| 444180 | Other Building Material Dealers | 5 |
| 339115 | Ophthalmic Goods Manufacturing | 5 |
| 336419 | Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing | 5 |
| 335932 | Noncurrent-Carrying Wiring Device Manufacturing | 5 |
| 334510 | Electromedical and Electrotherapeutic Apparatus Manufacturing | 5 |
| 333991 | Power-Driven Handtool Manufacturing | 5 |
| 333515 | Cutting Tool and Machine Tool Accessory Manufacturing | 5 |
| 333241 | Food Product Machinery Manufacturing | 5 |
| 332992 | Small Arms Ammunition Manufacturing | 5 |
| 332322 | Sheet Metal Work Manufacturing | 5 |
| 332313 | Plate Work Manufacturing | 5 |
| 332111 | Iron and Steel Forging | 5 |
| 331221 | Rolled Steel Shape Manufacturing | 5 |
| 325180 | Other Basic Inorganic Chemical Manufacturing | 5 |
| 314910 | Textile Bag and Canvas Mills | 5 |
| 311999 | All Other Miscellaneous Food Manufacturing | 5 |
| 238390 | Other Building Finishing Contractors | 5 |
| 115310 | Support Activities for Forestry | 5 |
| 114119 | Other Marine Fishing | 5 |
| 812332 | Industrial Launderers | 4 |
| 722310 | Food Service Contractors | 4 |
| 611699 | All Other Miscellaneous Schools and Instruction | 4 |
| 562991 | Septic Tank and Related Services | 4 |
| 541690 | Other Scientific and Technical Consulting Services | 4 |
| 541620 | Environmental Consulting Services | 4 |
| 541511 | Custom Computer Programming Services | 4 |
| 484210 | Used Household and Office Goods Moving | 4 |
| 336999 | All Other Transportation Equipment Manufacturing | 4 |
| 336340 | Motor Vehicle Brake System Manufacturing | 4 |
| 335139 | Electric Lamp Bulb and Other Lighting Equipment Manufacturing | 4 |
| 333995 | Fluid Power Cylinder and Actuator Manufacturing | 4 |
| 333517 | Machine Tool Manufacturing | 4 |
| 333248 | All Other Industrial Machinery Manufacturing | 4 |
| 332813 | Electroplating, Plating, Polishing, Anodizing, and Coloring | 4 |
| 332117 | Powder Metallurgy Part Manufacturing | 4 |
| 327999 | All Other Miscellaneous Nonmetallic Mineral Product Manufacturing | 4 |
| 327215 | Glass Product Manufacturing Made of Purchased Glass | 4 |
| 325414 | Biological Product (except Diagnostic) Manufacturing | 4 |
| 324110 | Petroleum Refineries | 4 |
| 315210 | Cut and Sew Apparel Contractors | 4 |
| 311991 | Perishable Prepared Food Manufacturing | 4 |
| 238320 | Painting and Wall Covering Contractors | 4 |
| 221310 | Water Supply and Irrigation Systems | 4 |
| 921190 | Other General Government Support | 3 |
| 811121 | Automotive Body, Paint, and Interior Repair and Maintenance | 3 |
| 721211 | RV (Recreational Vehicle) Parks and Campgrounds | 3 |
| 721110 | Hotels (except Casino Hotels) and Motels | 3 |
| 621910 | Ambulance Services | 3 |
| 621512 | Diagnostic Imaging Centers | 3 |
| 621420 | Outpatient Mental Health and Substance Abuse Centers | 3 |
| 621340 | Offices of Physical, Occupational and Speech Therapists, and Audiologists | 3 |
| 621330 | Offices of Mental Health Practitioners (except Physicians) | 3 |
| 611519 | Other Technical and Trade Schools | 3 |
| 611512 | Flight Training | 3 |
| 562211 | Hazardous Waste Treatment and Disposal | 3 |
| 562119 | Other Waste Collection | 3 |
| 561790 | Other Services to Buildings and Dwellings | 3 |
| 5417 | | 3 |
| 541611 | Administrative Management and General Management Consulting Services | 3 |
| 541199 | All Other Legal Services | 3 |
| 541 | | 3 |
| 53112 | | 3 |
| 519290 | Web Search Portals and All Other Information Services | 3 |
| 518210 | Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services | 3 |
| 517410 | Satellite Telecommunications | 3 |
| 517112 | Wireless Telecommunications Carriers (except Satellite) | 3 |
| 493110 | General Warehousing and Storage | 3 |
| 484230 | Specialized Freight (except Used Goods) Trucking, Long-Distance | 3 |
| 423830 | Industrial Machinery and Equipment Merchant Wholesalers | 3 |
| 339112 | Surgical and Medical Instrument Manufacturing | 3 |
| 336370 | Motor Vehicle Metal Stamping | 3 |
| 334118 | Computer Terminal and Other Computer Peripheral Equipment Manufacturing | 3 |
| 333994 | Industrial Process Furnace and Oven Manufacturing | 3 |
| 333922 | Conveyor and Conveying Equipment Manufacturing | 3 |
| 332913 | Plumbing Fixture Fitting and Trim Manufacturing | 3 |
| 332420 | Metal Tank (Heavy Gauge) Manufacturing | 3 |
| 332312 | Fabricated Structural Metal Manufacturing | 3 |
| 326291 | Rubber Product Manufacturing for Mechanical Use | 3 |
| 326199 | All Other Plastics Product Manufacturing | 3 |
| 326130 | Laminated Plastics Plate, Sheet (except Packaging), and Shape Manufacturing | 3 |
| 325413 | In-Vitro Diagnostic Substance Manufacturing | 3 |
| 323111 | Commercial Printing (except Screen and Books) | 3 |
| 32311 | | 3 |
| 321920 | Wood Container and Pallet Manufacturing | 3 |
| 316210 | Footwear Manufacturing | 3 |
| 313110 | Fiber, Yarn, and Thread Mills | 3 |
| 238330 | Flooring Contractors | 3 |
| 238110 | Poured Concrete Foundation and Structure Contractors | 3 |
| 23799 | | 3 |
| 236118 | Residential Remodelers | 3 |
| 221320 | Sewage Treatment Facilities | 3 |
| 813920 | Professional Organizations | 2 |
| 812320 | Drycleaning and Laundry Services (except Coin-Operated) | 2 |
| 811111 | General Automotive Repair | 2 |
| 722320 | Caterers | 2 |
| 711130 | Musical Groups and Artists | 2 |
| 623220 | Residential Mental Health and Substance Abuse Facilities | 2 |
| 621320 | Offices of Optometrists | 2 |
| 611710 | Educational Support Services | 2 |
| 561920 | Convention and Trade Show Organizers | 2 |
| 561410 | Document Preparation Services | 2 |
| 541940 | Veterinary Services | 2 |
| 541930 | Translation and Interpretation Services | 2 |
| 541370 | Surveying and Mapping (except Geophysical) Services | 2 |
| 531 | | 2 |
| 524298 | All Other Insurance Related Activities | 2 |
| 524292 | Pharmacy Benefit Management and Other Third Party Administration of Insurance and Pension Funds | 2 |
| 493190 | Other Warehousing and Storage | 2 |
| 492110 | Couriers and Express Delivery Services | 2 |
| 488320 | Marine Cargo Handling | 2 |
| 484220 | Specialized Freight (except Used Goods) Trucking, Local | 2 |
| 483112 | Deep Sea Passenger Transportation | 2 |
| 423610 | Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers | 2 |
| 423430 | Computer and Computer Peripheral Equipment and Software Merchant Wholesalers | 2 |
| 423310 | Lumber, Plywood, Millwork, and Wood Panel Merchant Wholesalers | 2 |
| 339920 | Sporting and Athletic Goods Manufacturing | 2 |
| 337215 | Showcase, Partition, Shelving, and Locker Manufacturing | 2 |
| 336510 | Railroad Rolling Stock Manufacturing | 2 |
| 336415 | Guided Missile and Space Vehicle Propulsion Unit and Propulsion Unit Parts Manufacturing | 2 |
| 336414 | Guided Missile and Space Vehicle Manufacturing | 2 |
| 336120 | Heavy Duty Truck Manufacturing | 2 |
| 336110 | Automobile and Light Duty Motor Vehicle Manufacturing | 2 |
| 335921 | Fiber Optic Cable Manufacturing | 2 |
| 334517 | Irradiation Apparatus Manufacturing | 2 |
| 332993 | Ammunition (except Small Arms) Manufacturing | 2 |
| 331529 | Other Nonferrous Metal Foundries (except Die-Casting) | 2 |
| 331420 | Copper Rolling, Drawing, Extruding, and Alloying | 2 |
| 331110 | Iron and Steel Mills and Ferroalloy Manufacturing | 2 |
| 327212 | Other Pressed and Blown Glass and Glassware Manufacturing | 2 |
| 326113 | Unlaminated Plastics Film and Sheet (except Packaging) Manufacturing | 2 |
| 325992 | Photographic Film, Paper, Plate, Chemical, and Copy Toner Manufacturing | 2 |
| 325211 | Plastics Material and Resin Manufacturing | 2 |
| 322219 | Other Paperboard Container Manufacturing | 2 |
| 322211 | Corrugated and Solid Fiber Box Manufacturing | 2 |
| 316990 | Other Leather and Allied Product Manufacturing | 2 |
| 311812 | Commercial Bakeries | 2 |
| 311119 | Other Animal Food Manufacturing | 2 |
| 238910 | Site Preparation Contractors | 2 |
| 237130 | Power and Communication Line and Related Structures Construction | 2 |
| 236210 | Industrial Building Construction | 2 |
| 111998 | All Other Miscellaneous Crop Farming | 2 |
| 925110 | Administration of Housing Programs | 1 |
| 922160 | Fire Protection | 1 |
| 922140 | Correctional Institutions | 1 |
| 812910 | Pet Care (except Veterinary) Services | 1 |
| 811412 | Appliance Repair and Maintenance | 1 |
| 811192 | Car Washes | 1 |
| 811114 | Specialized Automotive Repair | 1 |
| 721120 | Casino Hotels | 1 |
| 713940 | Fitness and Recreational Sports Centers | 1 |
| 711219 | Other Spectator Sports | 1 |
| 624310 | Vocational Rehabilitation Services | 1 |
| 623110 | Nursing Care Facilities (Skilled Nursing Facilities) | 1 |
| 621999 | All Other Miscellaneous Ambulatory Health Care Services | 1 |
| 621491 | HMO Medical Centers | 1 |
| 611430 | Professional and Management Development Training | 1 |
| 611420 | Computer Training | 1 |
| 611310 | Colleges, Universities, and Professional Schools | 1 |