- 4215 - Courier Services, Except By Air (7 Companies)
- 4225 - General Warehousing And Storage (12 Companies)
- 4226 - Special Warehousing And Storage (5 Companies)
- 4311 - U S Postal Service (63 Companies)
- 4481 - Deep Sea Passenger Transportation, Except Ferry (1 Company)
- 4512 - Air Transportation, Scheduled (2 Companies)
- 4513 - Air Courier Services (2 Companies)
- 4724 - Travel Agencies (18 Companies)
- 4725 - Tour Operators (3 Companies)
- 4731 - Freight Transportation Arrangement (23 Companies)
- 4783 - Packing And Crating Services (2 Companies)
- 4785 - Inspection And Weighing Facilities And Services (1 Company)
- 4789 - Transportation Services (2 Companies)
- 4812 - Radiotelephone Communications (49 Companies)
- 4813 - Telephone Communication Except Radio (43 Companies)
- 4832 - Radio Broadcasting Stations (4 Companies)
- 4833 - Television Broadcasting Stations (1 Company)
- 4841 - Cable And Other Pay Television Services (13 Companies)
- 4911 - Electric Services (2 Companies)
- 4923 - Natural Gas Transmission And Distribution (1 Company)
- 4925 - Gas Production And/Or Distribution (2 Companies)
- 4953 - Refuse Systems (5 Companies)
- 4959 - Sanitary Services (6 Companies)
- 4971 - Irrigation Systems (1 Company)
- 5012 - Automobiles And Other Motor Vehicles (1 Company)
- 5013 - Motor Vehicle Supplies And New Parts (30 Companies)
- 5014 - Tires And Tubes (8 Companies)
- 5015 - Motor Vehicle Parts, Used (6 Companies)
- 5023 - Homefurnishings (5 Companies)
- 5031 - Lumber, Plywood, Millwork & Wood Panels (5 Companies)
- 5032 - Brick, Stone And Related Material (4 Companies)
- 5039 - Construction Materials (3 Companies)
- 5044 - Office Equipment (3 Companies)
- 5045 - Computers, Peripherals And Software (2 Companies)
- 5046 - Commercial Equipment (3 Companies)
- 5047 - Medical And Hospital Equipment (6 Companies)
- 5049 - Professional Equipment, Nec (3 Companies)
- 5051 - Metal Service Centers And Offices (6 Companies)
- 5063 - Electrical Apparatus And Equipment (8 Companies)
- 5064 - Electrical Appliances, Television And Radio (1 Company)
- 5065 - Electronic Parts And Equipment, Nec (8 Companies)
- 5072 - Hardware (1 Company)
- 5074 - Plumbing And Hydronic Heating Supplies (1 Company)
- 5078 - Refrigeration Equipment & Supplies (2 Companies)
- 5083 - Farm And Garden Machinery (6 Companies)
- 5084 - Industrial Machinery And Equipment (16 Companies)
- 5085 - Industrial Supplies (3 Companies)
- 5087 - Service Establishment Equipment (28 Companies)
- 5093 - Scrap And Waste Materials (2 Companies)
- 5099 - Durable Goods (7 Companies)
