- 3669 - Communications Equipment (2 Companies)
- 3672 - Printed Circuit Boards (3 Companies)
- 3674 - Semiconductors And Related Devices (34 Companies)
- 3677 - Electronic Coils And Transformers (1 Company)
- 3679 - Electronic Components (4 Companies)
- 3691 - Storage Batteries (20 Companies)
- 3692 - Primary Batteries, Dry And Wet (3 Companies)
- 3699 - Electrical Equipment And Supplies (56 Companies)
- 3711 - Motor Vehicles And Car Bodies (2 Companies)
- 3714 - Motor Vehicle Parts And Accessories (18 Companies)
- 3721 - Aircraft (5 Companies)
- 3732 - Boatbuilding And Repairing (1 Company)
- 3751 - Motorcycles, Bicycles And Parts (4 Companies)
- 3761 - Guided Missiles And Space Vehicles (2 Companies)
- 3769 - Space Vehicle Equipment (1 Company)
- 3792 - Travel Trailers And Campers (9 Companies)
- 3799 - Transportation Equipment (12 Companies)
- 3822 - Environmental Controls (1 Company)
- 3823 - Process Control Instruments (1 Company)
- 3829 - Measuring And Controlling Devices, Nec (3 Companies)
- 3842 - Orthopedic , Prosthetic And Surgical Appliances An (30 Companies)
- 3851 - Ophthalmic Goods (2 Companies)
- 3861 - Photographic Equipment And Supplies (1 Company)
- 3873 - Watches, Clocks, Watchcases And Parts (1 Company)
- 3911 - Jewelry, Precious Metal (10 Companies)
- 3914 - Silverware And Plated Ware (1 Company)
- 3931 - Musical Instruments (1 Company)
- 3944 - Games, Toys And Childrens Vehicles (1 Company)
- 3949 - Sporting And Athletic Goods (33 Companies)
- 3951 - Pens And Mechanical Pencils (1 Company)
- 3993 - Signs And Advertising Specialties (83 Companies)
- 3999 - Manufacturing Industries (45 Companies)
- 4011 - Railroads, Line Haul Operating (4 Companies)
- 4111 - Local & Suburban Transit (17 Companies)
- 4119 - Local Passenger Transportation (101 Companies)
- 4121 - Taxicabs (12 Companies)
- 4131 - Intercity & Rural Bus Transportation (10 Companies)
- 4141 - Local Bus Charter Service (9 Companies)
- 4142 - Bus Charter Service, Except Local (12 Companies)
- 4212 - Local Trucking, Without Storage (309 Companies)
- 4213 - Trucking, Except Local (168 Companies)
- 4214 - Local Trucking With Storage (104 Companies)
- 4215 - Courier Services, Except By Air (87 Companies)
- 4221 - Farm Product Warehousing And Storage (1 Company)
- 4225 - General Warehousing And Storage (287 Companies)
- 4226 - Special Warehousing And Storage (205 Companies)
- 4311 - U S Postal Service (329 Companies)
- 4449 - Water Transportation Of Freight (4 Companies)
- 4481 - Deep Sea Passenger Transportation, Except Ferry (8 Companies)
- 4489 - Water Passenger Transportation (5 Companies)
- 4491 - Marine Cargo Handling (6 Companies)
- 4493 - Marinas (31 Companies)
- 4499 - Water Transportation Services (13 Companies)
- 4512 - Air Transportation, Scheduled (23 Companies)
- 4513 - Air Courier Services (15 Companies)
- 4522 - Air Transportation, Nonscheduled (3 Companies)
- 4581 - Airports, Flying Fields & Services (19 Companies)
- 4619 - Pipelines (2 Companies)
- 4724 - Travel Agencies (123 Companies)
- 4725 - Tour Operators (32 Companies)
- 4729 - Passenger Transportation Services (4 Companies)
- 4731 - Freight Transportation Arrangement (328 Companies)
- 4783 - Packing And Crating Services (11 Companies)
- 4789 - Transportation Services (11 Companies)
- 4812 - Radiotelephone Communications (351 Companies)
- 4813 - Telephone Communication Except Radio (443 Companies)
- 4832 - Radio Broadcasting Stations (55 Companies)
- 4833 - Television Broadcasting Stations (13 Companies)
- 4841 - Cable And Other Pay Television Services (93 Companies)
- 4899 - Communication Services, Nec (23 Companies)
- 4911 - Electric Services (84 Companies)
- 4922 - Natural Gas Transmission (5 Companies)
- 4923 - Natural Gas Transmission And Distribution (1 Company)
- 4924 - Natural Gas Distribution (7 Companies)
- 4925 - Gas Production And/Or Distribution (38 Companies)
- 4931 - Electric And Other Services Combined (2 Companies)
- 4932 - Gas And Other Services Combined (1 Company)
- 4939 - Combination Utilities (6 Companies)
- 4941 - Water Supply Systems (36 Companies)
- 4952 - Sewerage Systems (5 Companies)
- 4953 - Refuse Systems (102 Companies)
- 4959 - Sanitary Services (25 Companies)
- 4971 - Irrigation Systems (25 Companies)
- 5012 - Automobiles And Other Motor Vehicles (12 Companies)
- 5013 - Motor Vehicle Supplies And New Parts (75 Companies)
- 5014 - Tires And Tubes (22 Companies)
- 5015 - Motor Vehicle Parts, Used (35 Companies)
- 5021 - Furniture (19 Companies)
- 5023 - Homefurnishings (55 Companies)
- 5031 - Lumber, Plywood, Millwork & Wood Panels (38 Companies)
- 5032 - Brick, Stone And Related Material (116 Companies)
- 5033 - Roofing, Siding And Insulation (9 Companies)
- 5039 - Construction Materials (11 Companies)
- 5043 - Photographic Equipment And Supplies (5 Companies)
- 5044 - Office Equipment (42 Companies)
- 5045 - Computers, Peripherals And Software (38 Companies)
- 5046 - Commercial Equipment (20 Companies)
- 5047 - Medical And Hospital Equipment (36 Companies)
- 5049 - Professional Equipment, Nec (74 Companies)
- 5051 - Metal Service Centers And Offices (43 Companies)
