- 3578 - Calculating And Accounting Equipment (1 Company)
- 3592 - Carburetors, Pistons, Rings And Valves (1 Company)
- 3648 - Lighting Equipment (1 Company)
- 3663 - Radio And Tv Communications Equipment (4 Companies)
- 3674 - Semiconductors And Related Devices (1 Company)
- 3792 - Travel Trailers And Campers (1 Company)
- 3842 - Orthopedic , Prosthetic And Surgical Appliances An (4 Companies)
- 3944 - Games, Toys And Childrens Vehicles (1 Company)
- 3949 - Sporting And Athletic Goods (2 Companies)
- 3993 - Signs And Advertising Specialties (2 Companies)
- 3999 - Manufacturing Industries (2 Companies)
- 4013 - Switching & Terminal Services (1 Company)
- 4111 - Local & Suburban Transit (4 Companies)
- 4119 - Local Passenger Transportation (3 Companies)
- 4141 - Local Bus Charter Service (1 Company)
- 4142 - Bus Charter Service, Except Local (2 Companies)
- 4212 - Local Trucking, Without Storage (10 Companies)
- 4213 - Trucking, Except Local (10 Companies)
- 4214 - Local Trucking With Storage (3 Companies)
- 4215 - Courier Services, Except By Air (2 Companies)
- 4225 - General Warehousing And Storage (9 Companies)
- 4226 - Special Warehousing And Storage (5 Companies)
- 4311 - U S Postal Service (35 Companies)
- 4512 - Air Transportation, Scheduled (2 Companies)
- 4522 - Air Transportation, Nonscheduled (1 Company)
- 4581 - Airports, Flying Fields & Services (4 Companies)
- 4724 - Travel Agencies (2 Companies)
- 4731 - Freight Transportation Arrangement (7 Companies)
- 4789 - Transportation Services (1 Company)
- 4812 - Radiotelephone Communications (3 Companies)
- 4813 - Telephone Communication Except Radio (6 Companies)
- 4822 - Telegraph And Other Message Communications (2 Companies)
- 4832 - Radio Broadcasting Stations (1 Company)
- 4841 - Cable And Other Pay Television Services (6 Companies)
- 4911 - Electric Services (5 Companies)
- 4939 - Combination Utilities (2 Companies)
- 4953 - Refuse Systems (12 Companies)
- 4959 - Sanitary Services (3 Companies)
- 4971 - Irrigation Systems (1 Company)
- 5013 - Motor Vehicle Supplies And New Parts (4 Companies)
- 5023 - Homefurnishings (1 Company)
- 5032 - Brick, Stone And Related Material (3 Companies)
- 5044 - Office Equipment (2 Companies)
- 5046 - Commercial Equipment (1 Company)
- 5047 - Medical And Hospital Equipment (3 Companies)
- 5049 - Professional Equipment, Nec (3 Companies)
- 5051 - Metal Service Centers And Offices (2 Companies)
- 5063 - Electrical Apparatus And Equipment (4 Companies)
- 5065 - Electronic Parts And Equipment, Nec (4 Companies)
- 5072 - Hardware (1 Company)
