| SIC Code | Description |
| 2741 | Publishing services |
| 2759 | Commercial Printing, Not Elsewhere Classified |
| 3444 | Sheet Metal Work |
| 3559 | Special Industry Machinery, Not Elsewhere Classified |
| 3571 | Computer manufacturers |
| 3572 | Storage device manufacturers |
| 3577 | Peripherals manufacturers |
| 3644 | Noncurrent-Carrying Wiring Devices |
| 3661 | Communications interface manufacturers |
| 3663 | Radio and Television Broadcasting and Communications Equipment |
| 3669 | Communications Equipment, Not Elsewhere Classified |
| 3672 | Printed circuit board manufacturers |
| 3674 | Semiconductor manufacturers |
| 3679 | Electronic Components, Not Elsewhere Classified |
| 3695 | Disk and media manufacturers |
| 3823 | Display and control insturments manufacturers |
| 3825 | Instruments for Measuring and Testing of Electricity and Electrical |
| 3826 | Analytical insturment manufactuers |
| 3829 | Measuring and control device manufacturers |
| 3845 | Electromedical and Electrotherapeutic Apparatus |
| 4812 | Radiotelephone Communications |
| 4813 | Telephone Communications, Except Radiotelephone |
| 4841 | Cable and Other Pay Television Services |
| 4899 | Communications Services, Not Elsewhere Classified |
| 5045 | Wholesale distribution - computers, peripherals and software |
| 5065 | Electronic Parts and Equipment, Not Elsewhere Classified |
| 5112 | Wholesale distribution - computer supplies |
| 5734 | Retailers |
| 5961 | Mail order retailers |
| 6794 | Patent Owners and Lessors |
| 6799 | Venture capital firms |
| 7299 | Photography - computer |
| 7311 | Advertising agencies |
| 7336 | Commercial Art and Graphics Design |
| 7361 | Executive placement agencies |
| 7362 | Temporary placement agencies |
| 7371 | Software developers |
| 7372 | Software publishers |
| 7373 | Systems integrators |
| 7374 | Data processors |
| 7375 | Information retrieval services |
| 7376 | Facilities management services |
| 7378 | Computer maintenance and repair |
| 7379 | Computer Related, Consultants |
| 8111 | Legal services |
| 8243 | Schools - dataprocessing, repair, operator and software training |
| 8711 | Engineering services |
| 8721 | Accounting, auditing and bookkeeping services |
| 8732 | Market research |
| 8734 | Testing laboratories |
| 8741 | Contract management services |
| 8742 | Management consulting services |
| 8999 | Technical writers |