- 3069 - Fabricated Rubber Products (3 Companies)
- 3211 - Flat Glass (1 Company)
- 3273 - Ready Mixed Concrete (1 Company)
- 3292 - Asbestos Products (1 Company)
- 3315 - Steel Wiredrawing, Nails & Spikes (2 Companies)
- 3432 - Plumbing Fixture Fittings & Trim (3 Companies)
- 3441 - Fabricated Structural Metal (1 Company)
- 3443 - Fabricated Plate Work (Boiler Shops) (3 Companies)
- 3444 - Sheet Metalwork (5 Companies)
- 3479 - Metal Coating & Allied Services (2 Companies)
- 3491 - Industrial Valves (1 Company)
- 3496 - Miscellaneous Fabricated Wire Products (3 Companies)
- 3498 - Fabricated Pipe & Fittings (1 Company)
- 3519 - Internal Combustion Engines (1 Company)
- 3533 - Oil And Gas Field Machinery And Equipment (1 Company)
- 3542 - Machine Tools, Metal Forming Type (1 Company)
- 3544 - Special Dies, Tools, Jigs, And Fixtures (2 Companies)
- 3556 - Food Products Machinery (1 Company)
- 3561 - Pumps And Pumping Equipment (1 Company)
- 3569 - General Industrial Machinery (1 Company)
- 3578 - Calculating And Accounting Equipment (3 Companies)
- 3585 - Refrigeration And Heating Equipment (1 Company)
- 3592 - Carburetors, Pistons, Rings And Valves (7 Companies)
- 3599 - Industrial Machinery (6 Companies)
- 3625 - Relays And Industrial Controls (1 Company)
- 3633 - Household Laundry Equipment (1 Company)
- 3648 - Lighting Equipment (1 Company)
- 3663 - Radio And Tv Communications Equipment (2 Companies)
- 3691 - Storage Batteries (1 Company)
- 3699 - Electrical Equipment And Supplies (6 Companies)
- 3711 - Motor Vehicles And Car Bodies (2 Companies)
- 3792 - Travel Trailers And Campers (3 Companies)
- 3823 - Process Control Instruments (1 Company)
- 3949 - Sporting And Athletic Goods (1 Company)
- 3993 - Signs And Advertising Specialties (3 Companies)
- 3999 - Manufacturing Industries (1 Company)
- 4119 - Local Passenger Transportation (3 Companies)
- 4212 - Local Trucking, Without Storage (26 Companies)
- 4213 - Trucking, Except Local (25 Companies)
- 4214 - Local Trucking With Storage (2 Companies)
- 4215 - Courier Services, Except By Air (2 Companies)
- 4225 - General Warehousing And Storage (3 Companies)
- 4226 - Special Warehousing And Storage (6 Companies)
- 4311 - U S Postal Service (5 Companies)
- 4449 - Water Transportation Of Freight (1 Company)
- 4481 - Deep Sea Passenger Transportation, Except Ferry (1 Company)
- 4499 - Water Transportation Services (1 Company)
- 4512 - Air Transportation, Scheduled (5 Companies)
- 4522 - Air Transportation, Nonscheduled (1 Company)
- 4581 - Airports, Flying Fields & Services (1 Company)
