| 87340 | Installation services of radio, television and communications equipment and apparatus | |
| 54270 | Installations, beach, general construction of | |
| 91121 | Institutions, educational, administrative services related to | |
| 91124 | Institutions, religious, support services for | |
| 93221 | Institutions, residential, care of elderly persons by | |
| 93223 | Institutions, residential, care of mentally adults by | |
| 93222 | Institutions, residential, care of mentally disabled young persons by | |
| 93223 | Institutions, residential, care of physically disabled adults by | |
| 93222 | Institutions, residential, care of physically disabled young persons by | |
| 93223 | Institutions, residential, welfare services delivered to disabled adults through | |
| 93221 | Institutions, residential, welfare services delivered to elderly persons through | |
| 93222 | Institutions, residential, welfare services delivered to young disabled persons through | |
| 88746 | Instrument panel clocks manufacturing services | |
| 49640 | Instrument panels for aircraft | |
| 48314 | Instruments for astronomical observation | |
| 48249 | Instruments for measuring or checking semiconductor wafer or devices | |
| 87154 | Instruments, checking, maintenance and repair of | |
| 38996 | Instruments, demonstrational, unsuitable for other uses | |
| 48130 | Instruments, dental (excl. veterinary and electro-medical apparatus) | |
| 48232 | Instruments, drafting | |
| 48232 | Instruments, drawing | |
| 48150 | Instruments, embalming | |
| 48150 | Instruments, embryotomy | |
| 48219 | Instruments, geophysical | |
| 48150 | Instruments, gynaecological | |
| 48219 | Instruments, hydrographic | |
| 48219 | Instruments, hydrological | |
| 48212 | Instruments, levelling, surveyors' | |
| 48150 | Instruments, lithotrity | |
| 48232 | Instruments, marking-out (excl. tools used in graphic arts) | |
| 87154 | Instruments, measuring, maintenance and repair of | |
| 48150 | Instruments, medical (excl. electromedical apparatus) | |
| 87350 | Instruments, medical, installation of | |
| 87154 | Instruments, medical, repair of | |
| 48219 | Instruments, meteorological | |
| 38350 | Instruments, mouth-blown, sound-signalling | |
| 38963 | Instruments, musical, antique | |
| 38330 | Instruments, musical, brass-wind | |
| 62359 | Instruments, musical, mail order retail trade services of | |
| 87290 | Instruments, musical, maintenance and repair of | |