| 37195 | Adaptors, glass, for laboratory use | |
| 93303 | Addicts, adults, rehabilitation of, with accommodation | |
| 93301 | Addicts, minors, rehabilitation of, with accommodation | |
| 48232 | Adding and subtracting devices, pocket-type, operated with a stylus | |
| 45141 | Adding machines | |
| 88767 | Adding machines manufacturing services | |
| 35430 | Additives, extreme pressure (EP), for lubricating oils | |
| 35490 | Additives, prepared, for cements, mortars or concretes | |
| 35430 | Additives, prepared, for other liquids used for the same purposes as mineral oils | |
| 45160 | Addressing machines for envelopes, invoices, etc., for office use | |
| 85953 | Addressing of envelopes | |
| 45180 | Address-plates, metal, whether or not embossed, for use in addressing machines | |
| 42999 | Address-plates, of base metal, for houses, letter-boxes, doors, vehicles, dog collars | |
| 03219 | Aden gum | |
| 35230 | Adenine | |
| 35250 | Adermin, not put up as medicaments | |
| 35260 | Adermin, put up as medicaments in measured doses or in forms or packings for retail sale | |
| 89122 | Adhesive binding of books | |
| 88329 | Adhesive paper manufacturing services | |
| 35420 | Adhesives in retail packings of a net weight not exceeding 1 kg | |
| 34170 | Adipoketone | |
| 34150 | Adiponitrile | |
| 42992 | Adjusters, of base metal, for bookcase shelves | |
| 71620 | Adjustment of insurance claims | |
| 71122 | Administration of bank accounts for depositors, other than corporate and institutional depositors | |
| 71121 | Administration of bank accounts for large business and institutional customers, including governments | |
| 91191 | Administration of civil service regulations | |
| 71541 | Administration of estates | |
| 71690 | Administration of insurance funds | |
| 91119 | Administration of non-self-governing and trust territories | |
| 71690 | Administration of pension funds | |
| 71690 | Administration of salvage | |
| 71541 | Administration of trusts | |
| 91131 | Administrative agriculture, forestry, fishing and hunting related services | |
| 91121 | Administrative educational services | |
| 91210 | Administrative external affairs related services, diplomatic and consular services abroad | |
| 91132 | Administrative fuel and energy-related services | |
| 91122 | Administrative health care services | |
| 91123 | Administrative housing and community amenity services | |
| 82120 | Administrative law, legal advisory services concerning | |