| 92900 | Adult literacy programs | |
| 83610 | 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 | |
| 83610 | Advertising campaigns, creation of | |
| 83610 | Advertising campaigns, execution of | |
| 83610 | Advertising campaigns, planning of | |
| 83610 | Advertising campaigns, selecting media for | |
| 91136 | Advertising campaigns, tourism, administrative services related to | |
| 83812 | Advertising display photography | |
| 96121 | Advertising film or video, production of | |
| 83610 | Advertising illustrations, designing of | |
| 83690 | Advertising materials, delivery of | |
| 83610 | Advertising movies, writing scenarios for | |
| 83610 | Advertising posters, designing of | |
| 83690 | Advertising samples, delivery of | |
| 83690 | Advertising services, aerial | |
| 83690 | Advertising services, direct | |
| 83690 | Advertising services, other | |
| 83620 | Advertising space, leasing of | |
| 83620 | Advertising space, purchase of, on commission | |
| 83620 | Advertising space, sale of | |
| 83620 | Advertising space, sale of, on commission | |
| 83620 | Advertising time, leasing of | |
| 83620 | Advertising time, purchase of, on commission | |
| 83620 | Advertising time, sale of | |
| 83620 | Advertising time, sale of, on commission | |
| 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 | |
| 83690 | Aerial advertising services | |
| 73116 | Aeroplanes, rental or leasing of, without operator | |
| 85400 | Aerosols, packaging of | |