| 96520 | Academies, riding, services of | |
| 62333 | Accessories, clothing, mail order retail trade services of | |
| 62133 | Accessories, clothing, non-specialized store retail trade services of | |
| 62433 | Accessories, clothing, other non-store retail trade services of | |
| 62533 | Accessories, clothing, retail trade services of, on a fee or contract basis | |
| 62233 | Accessories, clothing, specialized store retail trade services of | |
| 61133 | Accessories, clothing, wholesale trade services of, except on a fee or contract basis | |
| 61233 | Accessories, clothing, wholesale trade services of, on a fee or contract basis | |
| 62356 | Accessories, travel, mail order retail trade services of | |
| 62156 | Accessories, travel, non-specialized store retail trade services of | |
| 62456 | Accessories, travel, other non-store retail trade services of | |
| 62556 | Accessories, travel, retail trade services of, on a fee or contract basis | |
| 62256 | Accessories, travel, specialized store retail trade services of | |
| 61156 | Accessories, travel, wholesale trade services of, except on a fee or contract basis | |
| 61256 | Accessories, travel, wholesale trade services of, on a fee or contract basis | |
| 71320 | Accident and health insurance services | |
| 71420 | Accident and health reinsurance services | |
| 71320 | Accident insurance policies, supplementary, underwriting of | |
| 71320 | Accident insurance policies, underwriting of | |
| 71420 | Accident reinsurance services | |
| 67813 | Accommodation reservation services | |
| 63199 | Accommodation services, student fraternity | |
| 63199 | Accommodation services, worker's hostel | |
| 63192 | Accommodation, furnished, letting of | |
| 85920 | Account collection services | |
| 73123 | Accounting equipment, rental or leasing of | |
| 87120 | Accounting machinery, maintenance and repair of | |
| 73123 | Accounting machinery, rental or leasing of | |
| 82211 | Accounting records, examination of | |
| 82212 | Accounting review services | |
| 82219 | Accounting services, other | |
| 83112 | Accounting systems, development of, consulting services concerning | |
| 85920 | Accounts, collection of, on behalf of the client | |
| 85920 | Accounts, delinquent, purchasing of | |
| 85920 | Accounts, delinquent, recovery of | |
| 85920 | Accounts, regular, collection of | |
| 54650 | Acoustic insulation | |
| 54790 | Acoustic panels, application of | |
| 54790 | Acoustic tiles, application of | |
| 71511 | Acquisitions, corporate, arrangement of | |