| 96130 | Backdrops, operation of, except for the performing arts | |
| 83561 | Bacteriological testing and analysis | |
| 67190 | Baggage, handling of, at air terminals | |
| 67190 | Baggage, handling of, at bus terminals | |
| 67190 | Baggage, handling of, at rail terminals | |
| 62325 | Bakery products, mail order retail trade services of | |
| 62125 | Bakery products, non-specialized store retail trade services of | |
| 62425 | Bakery products, other non-store retail trade services of | |
| 62525 | Bakery products, retail trade services of, on a fee or contract basis | |
| 62225 | Bakery products, specialized store retail trade services of | |
| 61125 | Bakery products, wholesale trade services of, except on a fee or contract basis | |
| 61225 | Bakery products, wholesale trade services of, on a fee or contract basis | |
| 82213 | Balance sheets, analysis of | |
| 82213 | Balance sheets, compilation of | |
| 71553 | Balances, financial, verification of | |
| 87141 | Balancing of motor vehicle tires | |
| 54210 | Ballast, laying of | |
| 96220 | Ballet performances, production and presentation of | |
| 96210 | Ballet performances, promotion and organization of | |
| 96520 | Ballrooms, operation of | |
| 85240 | Bank collections and deposits by armoured cars | |
| 71553 | Bank drafts, clearing of | |
| 54122 | Banks, general construction of | |
| 71559 | Banks, non-central, designing of currency by | |
| 71559 | Banks, non-central, distribution of currency by | |
| 71559 | Banks, non-central, issuing of currency by | |
| 71559 | Banks, non-central, production of currency by | |
| 71559 | Banks, non-central, replacing of currency by | |
| 71553 | Banks, notification of | |
| 97210 | Barbers, services of | |
| 67610 | Barge canals, maintenance of | |
| 67610 | Barge canals, operation of | |
| 65240 | Barges, towing of, on inland canals by tugboats | |
| 65240 | Barges, towing of, on inland waterways by tugboats | |
| 54230 | Barrages, general construction of | |
| 54210 | Barriers, crash, installation of | |
| 61171 | Basic industrial chemicals, wholesale trade services of, except on a fee or contract basis | |
| 61271 | Basic industrial chemicals, wholesale trade services of, on a fee or contract basis | |
| 86419 | Basic metal manufacturing services, other | |
| 54270 | Basins, boat, general construction of | |