| 83620 | Advertising time, sale of, on commission | |
| 83632 | Advertising time, TV and radio, sale of, directly by producers or broadcasters | |
| 83121 | Advisory services concerning public image | |
| 83121 | Advisory services concerning public relations | |
| 82400 | Advisory services to managers or auditors of insolvent businesses | |
| 83211 | Advisory services, architectural | |
| 71551 | Advisory services, financial | |
| 67813 | Advisory services, travel | |
| 95992 | Advocacy organizations, services of | |
| 42921 | Adzes | |
| 43921 | Aerating machines for beverages | |
| 83690 | Aerial advertising services | |
| 46350 | Aerial cable and wire, electric, insulated, for a voltage exceeding 1,000 V | |
| 46340 | Aerial cable and wire, electric, insulated, for a voltage of between 81 and 1,000 V | |
| 47403 | Aerials of all kinds | |
| 48212 | Aerological sounding apparatus, non-electric | |
| 49623 | Aeroplanes, of an unladen weight exceeding 15,000 kg | |
| 49623 | Aeroplanes, of an unladen weight exceeding 2,000 kg | |
| 49622 | Aeroplanes, of an unladen weight not exceeding 2,000 kg | |
| 73116 | Aeroplanes, rental or leasing of, without operator | |
| 48160 | Aerosol therapy apparatus | |
| 85400 | Aerosols, packaging of | |
| 49612 | Aerostats | |
| 35230 | Aesculetin | |
| 35250 | Aesculin | |
| 83222 | Aesthetic landscaping of commercial land | |
| 83222 | Aesthetic landscaping of parks | |
| 83222 | Aesthetic landscaping of residential land | |
| 45160 | Affixing machines, postage stamp, for office use (excl. postage-franking machines) | |
| 43133 | Afterburning appliances for turbojet engines | |
| 35323 | Aftershave preparations | |
| 23999 | Agar-agar (or agar) | |
| 35331 | Agarbatti | |
| 16310 | Agate, banded, unworked or simply sawn or roughly shaped, whether or not graded, not strung, mounted or set nor converted into articles | |
| 38220 | Agate, banded, worked other than simply sawn or roughly shaped, whether or not graded, not strung, mounted or set nor converted into articles | |
| 16310 | Agate, unworked or simply sawn or roughly shaped, whether or not graded, not strung, mounted or set nor converted into articles | |
| 38220 | Agate, worked other than simply sawn or roughly shaped, whether or not graded, not strung, mounted or set nor converted into articles | |
| 83620 | Agencies, advertising, buying media space on behalf of | |
| 83620 | Agencies, advertising, buying media time on behalf of | |
| 85920 | Agencies, collection, services of | |