- 4111 - Local & Suburban Transit (1 Company)
- 4119 - Local Passenger Transportation (9 Companies)
- 4121 - Taxicabs (3 Companies)
- 4212 - Local Trucking, Without Storage (51 Companies)
- 4213 - Trucking, Except Local (29 Companies)
- 4214 - Local Trucking With Storage (10 Companies)
- 4215 - Courier Services, Except By Air (5 Companies)
- 4222 - Refrigerated Warehousing And Storage (1 Company)
- 4225 - General Warehousing And Storage (55 Companies)
- 4226 - Special Warehousing And Storage (37 Companies)
- 4311 - U S Postal Service (84 Companies)
- 4481 - Deep Sea Passenger Transportation, Except Ferry (10 Companies)
- 4513 - Air Courier Services (1 Company)
- 4724 - Travel Agencies (30 Companies)
- 4725 - Tour Operators (1 Company)
- 4731 - Freight Transportation Arrangement (49 Companies)
- 4783 - Packing And Crating Services (1 Company)
- 4789 - Transportation Services (4 Companies)
- 4812 - Radiotelephone Communications (55 Companies)
- 4813 - Telephone Communication Except Radio (58 Companies)
- 4822 - Telegraph And Other Message Communications (1 Company)
- 4832 - Radio Broadcasting Stations (5 Companies)
- 4833 - Television Broadcasting Stations (1 Company)
- 4841 - Cable And Other Pay Television Services (25 Companies)
- 4911 - Electric Services (9 Companies)
- 4923 - Natural Gas Transmission And Distribution (1 Company)
- 4924 - Natural Gas Distribution (4 Companies)
- 4925 - Gas Production And/Or Distribution (10 Companies)
- 4941 - Water Supply Systems (11 Companies)
- 4952 - Sewerage Systems (1 Company)
- 4953 - Refuse Systems (19 Companies)
- 4959 - Sanitary Services (11 Companies)
- 4971 - Irrigation Systems (11 Companies)
- 5012 - Automobiles And Other Motor Vehicles (8 Companies)
- 5013 - Motor Vehicle Supplies And New Parts (12 Companies)
- 5014 - Tires And Tubes (1 Company)
- 5015 - Motor Vehicle Parts, Used (4 Companies)
- 5021 - Furniture (6 Companies)
- 5023 - Homefurnishings (9 Companies)
- 5031 - Lumber, Plywood, Millwork & Wood Panels (9 Companies)
- 5032 - Brick, Stone And Related Material (19 Companies)
- 5039 - Construction Materials (1 Company)
- 5043 - Photographic Equipment And Supplies (1 Company)
- 5044 - Office Equipment (5 Companies)
- 5045 - Computers, Peripherals And Software (4 Companies)
- 5046 - Commercial Equipment (2 Companies)
- 5047 - Medical And Hospital Equipment (8 Companies)
- 5049 - Professional Equipment, Nec (31 Companies)
- 5051 - Metal Service Centers And Offices (6 Companies)
- 5063 - Electrical Apparatus And Equipment (20 Companies)
