| 91138 | Administrative services related to the regulation of equity markets | |
| 91138 | Administrative services related to the regulation of monopolies | |
| 91138 | Administrative services related to the regulation of restraints on market entry | |
| 91138 | Administrative services related to the regulation of restraints on trade | |
| 91138 | Administrative services related to the regulation of trade | |
| 91138 | Administrative services related to the standardization of weights and measures | |
| 91136 | Administrative services related to tourism advertising campaigns | |
| 91136 | Administrative services related to tourism affairs | |
| 91123 | Administrative services related to water supply regulations | |
| 91134 | Administrative services related to water transport | |
| 91134 | Administrative services related to wireless communications | |
| 91134 | Administrative transport and communications-related services | |
| 93520 | Adoption counselling services | |
| 34150 | Adrenalone (INN) | |
| 35250 | Adrenocorticotrophic hormone, not put up medicaments | |
| 35250 | Adrenosterone, not put up as medicaments | |
| 16310 | Adularia, unworked or simply sawn or roughly shaped, whether or not graded, not strung, mounted or set | |
| 38220 | Adularia, worked other than simply sawn or roughly shaped, whether or not graded, not strung, mounted or set | |
| 63130 | Adult holiday camps and related services | |
| 92200 | Adult literacy programmes | |
| 93223 | Adults, mentally disabled, care of, by residential institutions | |
| 93223 | Adults, physically disabled, care of, by residential institutions | |
| 83611 | Advertisements, designing of | |
| 83620 | Advertisers, buying media space on behalf of | |
| 83620 | Advertisers, buying media time on behalf of | |
| 83620 | Advertising agencies, buying media space on behalf of | |
| 83620 | Advertising agencies, buying media time on behalf of | |
| 83812 | Advertising and related photography services | |
| 83611 | Advertising campaigns, creation of | |
| 83611 | Advertising campaigns, execution of | |
| 83611 | Advertising campaigns, planning of | |
| 83611 | Advertising campaigns, selecting media for | |
| 91136 | Advertising campaigns, tourism, administrative services related to | |
| 83812 | Advertising display photography | |
| 96121 | Advertising film or video, production of | |
| 83611 | Advertising illustrations, designing of | |
| 83619 | Advertising materials, delivery of | |
| 32620 | Advertising matter, printed (excl. calendars containing advertising matter) | |
| 83611 | Advertising movies, writing scenarios for | |
| 83611 | Advertising posters, designing of | |