- 3299 - Nonmetallic Mineral Products (3 Companies)
- 3312 - Blast Furnaces And Steel Mills (1 Company)
- 3369 - Nonferrous Foundries (1 Company)
- 3421 - Cutlery (1 Company)
- 3423 - Hand & Edge Tools (1 Company)
- 3432 - Plumbing Fixture Fittings & Trim (2 Companies)
- 3433 - Heating Equipment, Except Electric (1 Company)
- 3441 - Fabricated Structural Metal (6 Companies)
- 3442 - Metal Doors, Sash & Trim (1 Company)
- 3443 - Fabricated Plate Work (Boiler Shops) (2 Companies)
- 3444 - Sheet Metalwork (15 Companies)
- 3446 - Architectural Metalwork (4 Companies)
- 3448 - Prefabricated Metal Buildings & Components (1 Company)
- 3479 - Metal Coating & Allied Services (3 Companies)
- 3499 - Fabricated Metal Products (2 Companies)
- 3519 - Internal Combustion Engines (2 Companies)
- 3523 - Farm Machinery And Equipment (1 Company)
- 3544 - Special Dies, Tools, Jigs, And Fixtures (1 Company)
- 3556 - Food Products Machinery (1 Company)
- 3559 - Special Industry Machinery (1 Company)
- 3561 - Pumps And Pumping Equipment (2 Companies)
- 3564 - Blowers, Fans, And Air Purification Equipment (1 Company)
- 3567 - Ndustrial Furnaces And Ovens (1 Company)
- 3569 - General Industrial Machinery (3 Companies)
- 3578 - Calculating And Accounting Equipment (22 Companies)
- 3582 - Commercial Laundry, Drycleaning, And Pressing Equi (2 Companies)
- 3585 - Refrigeration And Heating Equipment (4 Companies)
- 3592 - Carburetors, Pistons, Rings And Valves (1 Company)
- 3599 - Industrial Machinery (5 Companies)
- 3612 - Transformers, Except Electric (1 Company)
- 3621 - Motors And Generators (1 Company)
- 3625 - Relays And Industrial Controls (1 Company)
- 3631 - Household Cooking Equipment (1 Company)
- 3634 - Electric Housewares And Fans (1 Company)
- 3645 - Residential Lighting Fixtures (2 Companies)
- 3648 - Lighting Equipment (6 Companies)
- 3651 - Household Audio And Video Equipment (5 Companies)
- 3663 - Radio And Tv Communications Equipment (7 Companies)
- 3691 - Storage Batteries (1 Company)
- 3699 - Electrical Equipment And Supplies (14 Companies)
- 3714 - Motor Vehicle Parts And Accessories (8 Companies)
- 3715 - Truck Trailers (1 Company)
- 3792 - Travel Trailers And Campers (21 Companies)
- 3799 - Transportation Equipment (13 Companies)
- 3842 - Orthopedic , Prosthetic And Surgical Appliances An (5 Companies)
- 3851 - Ophthalmic Goods (4 Companies)
- 3911 - Jewelry, Precious Metal (2 Companies)
- 3942 - Dolls And Stuffed Toys (1 Company)
- 3949 - Sporting And Athletic Goods (9 Companies)
- 3993 - Signs And Advertising Specialties (27 Companies)
