- 3732 - Boatbuilding And Repairing (1 Company)
- 3761 - Guided Missiles And Space Vehicles (3 Companies)
- 3769 - Space Vehicle Equipment (1 Company)
- 3792 - Travel Trailers And Campers (20 Companies)
- 3799 - Transportation Equipment (13 Companies)
- 3822 - Environmental Controls (1 Company)
- 3829 - Measuring And Controlling Devices, Nec (2 Companies)
- 3842 - Orthopedic , Prosthetic And Surgical Appliances An (28 Companies)
- 3851 - Ophthalmic Goods (3 Companies)
- 3861 - Photographic Equipment And Supplies (1 Company)
- 3911 - Jewelry, Precious Metal (10 Companies)
- 3914 - Silverware And Plated Ware (1 Company)
- 3915 - Jewelers Materials And Lapidary Work (1 Company)
- 3931 - Musical Instruments (2 Companies)
- 3944 - Games, Toys And Childrens Vehicles (4 Companies)
- 3949 - Sporting And Athletic Goods (20 Companies)
- 3953 - Marking Devices (1 Company)
- 3993 - Signs And Advertising Specialties (76 Companies)
- 3999 - Manufacturing Industries (36 Companies)
- 4011 - Railroads, Line Haul Operating (18 Companies)
- 4111 - Local & Suburban Transit (20 Companies)
- 4119 - Local Passenger Transportation (100 Companies)
- 4121 - Taxicabs (19 Companies)
- 4131 - Intercity & Rural Bus Transportation (24 Companies)
- 4141 - Local Bus Charter Service (23 Companies)
- 4142 - Bus Charter Service, Except Local (19 Companies)
- 4173 - Bus Terminal & Service Facilities (1 Company)
- 4212 - Local Trucking, Without Storage (486 Companies)
- 4213 - Trucking, Except Local (441 Companies)
- 4214 - Local Trucking With Storage (62 Companies)
- 4215 - Courier Services, Except By Air (72 Companies)
- 4221 - Farm Product Warehousing And Storage (2 Companies)
- 4222 - Refrigerated Warehousing And Storage (2 Companies)
- 4225 - General Warehousing And Storage (275 Companies)
- 4226 - Special Warehousing And Storage (134 Companies)
- 4231 - Trucking Terminals Facilities (1 Company)
- 4311 - U S Postal Service (211 Companies)
- 4449 - Water Transportation Of Freight (5 Companies)
- 4481 - Deep Sea Passenger Transportation, Except Ferry (9 Companies)
- 4491 - Marine Cargo Handling (3 Companies)
- 4492 - Towing & Tugboat Services (2 Companies)
- 4493 - Marinas (14 Companies)
- 4499 - Water Transportation Services (3 Companies)
- 4512 - Air Transportation, Scheduled (53 Companies)
- 4513 - Air Courier Services (35 Companies)
- 4522 - Air Transportation, Nonscheduled (6 Companies)
- 4581 - Airports, Flying Fields & Services (27 Companies)
- 4612 - Crude Petroleum Pipelines (2 Companies)
- 4613 - Refined Petroleum Pipelines (1 Company)
- 4619 - Pipelines (4 Companies)
- 4724 - Travel Agencies (77 Companies)
- 4725 - Tour Operators (37 Companies)
- 4729 - Passenger Transportation Services (6 Companies)
- 4731 - Freight Transportation Arrangement (419 Companies)
- 4741 - Rental Of Railroad Cars (1 Company)
- 4783 - Packing And Crating Services (9 Companies)
- 4785 - Inspection And Weighing Facilities And Services (1 Company)
- 4789 - Transportation Services (6 Companies)
- 4812 - Radiotelephone Communications (311 Companies)
- 4813 - Telephone Communication Except Radio (312 Companies)
- 4822 - Telegraph And Other Message Communications (2 Companies)
- 4832 - Radio Broadcasting Stations (55 Companies)
- 4833 - Television Broadcasting Stations (10 Companies)
- 4841 - Cable And Other Pay Television Services (56 Companies)
- 4899 - Communication Services, Nec (2 Companies)
- 4911 - Electric Services (48 Companies)
- 4923 - Natural Gas Transmission And Distribution (3 Companies)
- 4924 - Natural Gas Distribution (3 Companies)
- 4925 - Gas Production And/Or Distribution (16 Companies)
- 4931 - Electric And Other Services Combined (4 Companies)
- 4941 - Water Supply Systems (14 Companies)
- 4953 - Refuse Systems (117 Companies)
- 4959 - Sanitary Services (19 Companies)
- 4971 - Irrigation Systems (27 Companies)
- 5012 - Automobiles And Other Motor Vehicles (23 Companies)
- 5013 - Motor Vehicle Supplies And New Parts (94 Companies)
- 5014 - Tires And Tubes (58 Companies)
- 5015 - Motor Vehicle Parts, Used (45 Companies)
- 5021 - Furniture (19 Companies)
- 5023 - Homefurnishings (34 Companies)
- 5031 - Lumber, Plywood, Millwork & Wood Panels (71 Companies)
- 5032 - Brick, Stone And Related Material (96 Companies)
- 5033 - Roofing, Siding And Insulation (10 Companies)
- 5039 - Construction Materials (20 Companies)
- 5043 - Photographic Equipment And Supplies (1 Company)
- 5044 - Office Equipment (92 Companies)
- 5045 - Computers, Peripherals And Software (22 Companies)
- 5046 - Commercial Equipment (31 Companies)
- 5047 - Medical And Hospital Equipment (31 Companies)
- 5049 - Professional Equipment, Nec (44 Companies)
- 5051 - Metal Service Centers And Offices (49 Companies)
- 5063 - Electrical Apparatus And Equipment (79 Companies)
- 5064 - Electrical Appliances, Television And Radio (13 Companies)
- 5065 - Electronic Parts And Equipment, Nec (21 Companies)
- 5072 - Hardware (14 Companies)
- 5074 - Plumbing And Hydronic Heating Supplies (25 Companies)
- 5075 - Warm Air Heating And Air Conditioning (27 Companies)
- 5078 - Refrigeration Equipment & Supplies (27 Companies)
- 5082 - Construction And Mining Machinery (52 Companies)
- 5083 - Farm And Garden Machinery (16 Companies)
