| 3823 | Autogenous welding equipment manufacturing | |
| 3851 | Automatic computing balance manufacturing | |
| 3825 | Automatic computing scale manufacturing | |
| 3831 | Automatic electric overload release manufacturing | |
| 3831 | Automatic switch, electric, manufacturing | |
| 3829 | Automatic tyre inflator manufacturing | |
| 3829 | Automatics, small arms, manufacturing | |
| 9399 | Automobile association | |
| 6200 | Automobile battery retailing | |
| 6100 | Automobile battery wholesaling | |
| 6320 | Automobile camp or court | |
| 7192 | Automobile dead storage service | |
| 9310 | Automobile driving school | |
| 3620 | Automobile glass manufacturing | |
| 8200 | Automobile insurance underwriting or selling | |
| 9513 | Automobile laundry | |
| 3829 | Automobile lift, elevator, manufacturing | |
| 7116 | Automobile livery service | |
| 9513 | Automobile lubricating | |
| 3843 | Automobile manufacturing | |
| 9399 | Automobile owners' club | |
| 7116 | Automobile parking service | |
| 3529 | Automobile polish manufacturing | |
| 9513 | Automobile repairing | |
| 8102 | Automobile sales finance company | |
| 3819 | Automobile skid chain manufacturing | |
| 3843 | Automobile stamping manufacturing | |
| 9513 | Automobile towing service | |
| 3212 | Automobile trimming cutting and sewing | |
| 3819 | Automobile tyre chain manufacturing | |
| 3551 | Automobile tyre manufacturing | |
| 3620 | Automobile windshield manufacturing | |
| 7113 | Automobile, with driver, rental service | |
| 3831 | Automotive distributor manufacturing | |
| 3831 | Automotive generator manufacturing | |
| 3831 | Autotransformer, electric, manufacturing | |
| 3220 | Aviation coat cutting and sewing | |
| 3212 | Awning cutting and sewing | |
| 9519 | Awning repairing | |
| 3319 | Axe handle, wooden, manufacturing | |