| A - Research and Development | 23139 |
| B - Special studies and analysis - not R & D | 5451 |
| C - Architect and engineering services | 7575 |
| D - Information Techonology (including telecom) | 17535 |
| F - Natural resources & conservation services | 6628 |
| G - Social services | 2191 |
| H - Quality control, testing & inspection services | 1843 |
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