- 3679 - Electronic Components (1 Company)
- 3699 - Electrical Equipment And Supplies (1 Company)
- 3731 - Shipbuilding And Repairing (1 Company)
- 3792 - Travel Trailers And Campers (2 Companies)
- 3993 - Signs And Advertising Specialties (4 Companies)
- 4013 - Switching & Terminal Services (1 Company)
- 4111 - Local & Suburban Transit (2 Companies)
- 4119 - Local Passenger Transportation (13 Companies)
- 4121 - Taxicabs (8 Companies)
- 4141 - Local Bus Charter Service (1 Company)
- 4142 - Bus Charter Service, Except Local (1 Company)
- 4212 - Local Trucking, Without Storage (14 Companies)
- 4213 - Trucking, Except Local (21 Companies)
- 4214 - Local Trucking With Storage (1 Company)
- 4215 - Courier Services, Except By Air (9 Companies)
- 4225 - General Warehousing And Storage (2 Companies)
- 4226 - Special Warehousing And Storage (1 Company)
- 4311 - U S Postal Service (49 Companies)
- 4493 - Marinas (2 Companies)
- 4512 - Air Transportation, Scheduled (6 Companies)
- 4513 - Air Courier Services (5 Companies)
- 4581 - Airports, Flying Fields & Services (1 Company)
- 4724 - Travel Agencies (9 Companies)
- 4725 - Tour Operators (3 Companies)
- 4729 - Passenger Transportation Services (1 Company)
- 4731 - Freight Transportation Arrangement (50 Companies)
- 4783 - Packing And Crating Services (1 Company)
- 4812 - Radiotelephone Communications (15 Companies)
- 4813 - Telephone Communication Except Radio (15 Companies)
- 4832 - Radio Broadcasting Stations (2 Companies)
- 4841 - Cable And Other Pay Television Services (8 Companies)
- 4911 - Electric Services (5 Companies)
- 4925 - Gas Production And/Or Distribution (2 Companies)
- 4941 - Water Supply Systems (2 Companies)
- 4953 - Refuse Systems (6 Companies)
- 4959 - Sanitary Services (1 Company)
- 5012 - Automobiles And Other Motor Vehicles (1 Company)
- 5013 - Motor Vehicle Supplies And New Parts (6 Companies)
- 5021 - Furniture (1 Company)
- 5023 - Homefurnishings (5 Companies)
- 5031 - Lumber, Plywood, Millwork & Wood Panels (1 Company)
- 5032 - Brick, Stone And Related Material (7 Companies)
- 5044 - Office Equipment (1 Company)
- 5046 - Commercial Equipment (2 Companies)
- 5051 - Metal Service Centers And Offices (2 Companies)
- 5063 - Electrical Apparatus And Equipment (5 Companies)
- 5064 - Electrical Appliances, Television And Radio (1 Company)
- 5074 - Plumbing And Hydronic Heating Supplies (1 Company)
- 5078 - Refrigeration Equipment & Supplies (2 Companies)
- 5084 - Industrial Machinery And Equipment (2 Companies)
