- 2951 - Asphalt Paving Mixtures & Blocks (2 Companies)
- 2952 - Asphalt Felts & Coatings (1 Company)
- 3053 - Gaskets, Packing & Sealing Devices (1 Company)
- 3089 - Plastics Products (1 Company)
- 3273 - Ready Mixed Concrete (1 Company)
- 3295 - Minerals, Ground Or Treated (1 Company)
- 3423 - Hand & Edge Tools (1 Company)
- 3433 - Heating Equipment, Except Electric (2 Companies)
- 3441 - Fabricated Structural Metal (1 Company)
- 3444 - Sheet Metalwork (3 Companies)
- 3446 - Architectural Metalwork (1 Company)
- 3479 - Metal Coating & Allied Services (2 Companies)
- 3499 - Fabricated Metal Products (1 Company)
- 3519 - Internal Combustion Engines (1 Company)
- 3552 - Textile Machinery (1 Company)
- 3556 - Food Products Machinery (1 Company)
- 3569 - General Industrial Machinery (1 Company)
- 3571 - Electronic Computers (1 Company)
- 3578 - Calculating And Accounting Equipment (4 Companies)
- 3589 - Service Industry Machinery (1 Company)
- 3592 - Carburetors, Pistons, Rings And Valves (1 Company)
- 3599 - Industrial Machinery (2 Companies)
- 3645 - Residential Lighting Fixtures (1 Company)
- 3663 - Radio And Tv Communications Equipment (1 Company)
- 3691 - Storage Batteries (1 Company)
- 3699 - Electrical Equipment And Supplies (4 Companies)
- 3714 - Motor Vehicle Parts And Accessories (1 Company)
- 3792 - Travel Trailers And Campers (1 Company)
- 3799 - Transportation Equipment (1 Company)
- 3841 - Surgical And Medical Instruments (1 Company)
- 3842 - Orthopedic , Prosthetic And Surgical Appliances An (3 Companies)
- 3873 - Watches, Clocks, Watchcases And Parts (1 Company)
- 3949 - Sporting And Athletic Goods (4 Companies)
- 3993 - Signs And Advertising Specialties (8 Companies)
- 3999 - Manufacturing Industries (2 Companies)
- 4011 - Railroads, Line Haul Operating (1 Company)
- 4111 - Local & Suburban Transit (2 Companies)
- 4119 - Local Passenger Transportation (18 Companies)
- 4121 - Taxicabs (3 Companies)
- 4131 - Intercity & Rural Bus Transportation (1 Company)
- 4141 - Local Bus Charter Service (1 Company)
- 4142 - Bus Charter Service, Except Local (1 Company)
- 4212 - Local Trucking, Without Storage (26 Companies)
- 4213 - Trucking, Except Local (19 Companies)
- 4214 - Local Trucking With Storage (1 Company)
- 4215 - Courier Services, Except By Air (6 Companies)
- 4225 - General Warehousing And Storage (23 Companies)
- 4226 - Special Warehousing And Storage (20 Companies)
- 4311 - U S Postal Service (27 Companies)
- 4481 - Deep Sea Passenger Transportation, Except Ferry (2 Companies)
