| 631 | Electronic Enclosures | Company Product |
| 632 | Electronic Engineers | Company Product |
| 633 | Electronic Equipment & Supplies | Company Product |
| 634 | Electronic Equipment & Supplies Repairing | Company Product |
| 635 | Electronic Equipment Cooling Fans | Company Product |
| 636 | Electronic Equipment Precision Turned Parts | Company Product |
| 637 | Electronic Equipment Transformers | Company Product |
| 638 | Electronic Equipment Turned Parts | Company Product |
| 639 | Electronic Fasteners | Company Product |
| 640 | Electronic Fluid Dispensers | Company Product |
| 641 | Electronic Function Generators | Company Product |
| 642 | Electronic Fuses | Company Product |
| 643 | Electronic Gauges | Company Product |
| 644 | Electronic Generators | Company Product |
| 645 | Electronic Identification Systems | Company Product |
| 646 | Electronic Instrument Printer | Company Product |
| 647 | Electronic Instrument Printers | Company Product |
| 648 | Electronic Instruments | Company Product |
| 649 | Electronic Locks | Company Product |
| 650 | Electronic Measuring Instrument Rental | Company Product |
| 651 | Electronic Measuring Instruments | Company Product |
| 652 | Electronic Message Display Terminals | Company Product |
| 653 | Electronic Meters | Company Product |
| 654 | Electronic Microscopes | Company Product |
| 655 | Electronic Motor Contactors | Company Product |
| 656 | Electronic Motor Starters | Company Product |
| 657 | Electronic Motors | Company Product |
| 658 | Electronic Noise Generators | Company Product |
| 659 | Electronic Parts Assemblers | Company Product |
| 660 | Electronic Parts Storage Cabinets | Company Product |