- 3444 - Sheet Metalwork (12 Companies)
- 3446 - Architectural Metalwork (1 Company)
- 3448 - Prefabricated Metal Buildings & Components (1 Company)
- 3471 - Plating And Polishing (2 Companies)
- 3479 - Metal Coating & Allied Services (3 Companies)
- 3491 - Industrial Valves (3 Companies)
- 3499 - Fabricated Metal Products (3 Companies)
- 3511 - Turbines And Turbine Generator Sets (1 Company)
- 3519 - Internal Combustion Engines (2 Companies)
- 3567 - Ndustrial Furnaces And Ovens (3 Companies)
- 3578 - Calculating And Accounting Equipment (35 Companies)
- 3589 - Service Industry Machinery (4 Companies)
- 3594 - Fluid Power Pumps And Motors (1 Company)
- 3599 - Industrial Machinery (6 Companies)
- 3635 - Household Vacuum Cleaners (1 Company)
- 3648 - Lighting Equipment (3 Companies)
- 3651 - Household Audio And Video Equipment (2 Companies)
- 3663 - Radio And Tv Communications Equipment (2 Companies)
- 3669 - Communications Equipment (1 Company)
- 3691 - Storage Batteries (2 Companies)
- 3699 - Electrical Equipment And Supplies (13 Companies)
- 3714 - Motor Vehicle Parts And Accessories (3 Companies)
- 3761 - Guided Missiles And Space Vehicles (1 Company)
- 3792 - Travel Trailers And Campers (5 Companies)
- 3799 - Transportation Equipment (3 Companies)
- 3822 - Environmental Controls (1 Company)
- 3842 - Orthopedic , Prosthetic And Surgical Appliances An (8 Companies)
- 3851 - Ophthalmic Goods (1 Company)
- 3911 - Jewelry, Precious Metal (1 Company)
- 3944 - Games, Toys And Childrens Vehicles (1 Company)
- 3949 - Sporting And Athletic Goods (10 Companies)
- 3993 - Signs And Advertising Specialties (29 Companies)
- 3999 - Manufacturing Industries (11 Companies)
- 4011 - Railroads, Line Haul Operating (2 Companies)
- 4111 - Local & Suburban Transit (2 Companies)
- 4119 - Local Passenger Transportation (13 Companies)
- 4121 - Taxicabs (10 Companies)
- 4131 - Intercity & Rural Bus Transportation (1 Company)
- 4212 - Local Trucking, Without Storage (60 Companies)
- 4213 - Trucking, Except Local (43 Companies)
- 4214 - Local Trucking With Storage (7 Companies)
- 4215 - Courier Services, Except By Air (11 Companies)
- 4225 - General Warehousing And Storage (64 Companies)
- 4226 - Special Warehousing And Storage (38 Companies)
- 4311 - U S Postal Service (107 Companies)
- 4481 - Deep Sea Passenger Transportation, Except Ferry (3 Companies)
- 4493 - Marinas (1 Company)
- 4512 - Air Transportation, Scheduled (4 Companies)
- 4513 - Air Courier Services (3 Companies)
- 4522 - Air Transportation, Nonscheduled (4 Companies)
- 4581 - Airports, Flying Fields & Services (5 Companies)
- 4724 - Travel Agencies (27 Companies)
- 4725 - Tour Operators (4 Companies)
- 4731 - Freight Transportation Arrangement (50 Companies)
- 4783 - Packing And Crating Services (1 Company)
- 4789 - Transportation Services (14 Companies)
- 4812 - Radiotelephone Communications (92 Companies)
- 4813 - Telephone Communication Except Radio (77 Companies)
- 4822 - Telegraph And Other Message Communications (1 Company)
- 4832 - Radio Broadcasting Stations (1 Company)
- 4841 - Cable And Other Pay Television Services (13 Companies)
- 4911 - Electric Services (3 Companies)
- 4923 - Natural Gas Transmission And Distribution (1 Company)
- 4924 - Natural Gas Distribution (1 Company)
- 4925 - Gas Production And/Or Distribution (4 Companies)
- 4941 - Water Supply Systems (4 Companies)
- 4953 - Refuse Systems (34 Companies)
- 4959 - Sanitary Services (4 Companies)
- 4971 - Irrigation Systems (2 Companies)
- 5012 - Automobiles And Other Motor Vehicles (5 Companies)
- 5013 - Motor Vehicle Supplies And New Parts (22 Companies)
- 5015 - Motor Vehicle Parts, Used (11 Companies)
- 5021 - Furniture (5 Companies)
- 5023 - Homefurnishings (10 Companies)
- 5031 - Lumber, Plywood, Millwork & Wood Panels (16 Companies)
- 5032 - Brick, Stone And Related Material (40 Companies)
- 5033 - Roofing, Siding And Insulation (3 Companies)
- 5039 - Construction Materials (3 Companies)
- 5044 - Office Equipment (7 Companies)
- 5045 - Computers, Peripherals And Software (7 Companies)
- 5046 - Commercial Equipment (2 Companies)
- 5047 - Medical And Hospital Equipment (5 Companies)
- 5049 - Professional Equipment, Nec (9 Companies)
- 5051 - Metal Service Centers And Offices (11 Companies)
- 5063 - Electrical Apparatus And Equipment (12 Companies)
- 5064 - Electrical Appliances, Television And Radio (1 Company)
- 5065 - Electronic Parts And Equipment, Nec (3 Companies)
- 5072 - Hardware (3 Companies)
- 5074 - Plumbing And Hydronic Heating Supplies (5 Companies)
- 5075 - Warm Air Heating And Air Conditioning (1 Company)
- 5078 - Refrigeration Equipment & Supplies (1 Company)
- 5082 - Construction And Mining Machinery (4 Companies)
- 5083 - Farm And Garden Machinery (9 Companies)
- 5084 - Industrial Machinery And Equipment (35 Companies)
- 5085 - Industrial Supplies (17 Companies)
- 5087 - Service Establishment Equipment (50 Companies)
- 5088 - Transportation Equipment And Supplies (2 Companies)
- 5091 - Sporting And Recreational Goods (1 Company)
- 5092 - Toys And Hobby Goods And Supplies (10 Companies)
- 5093 - Scrap And Waste Materials (7 Companies)
