| 54270 | Race tracks, general construction of | |
| 96520 | Race tracks, operation of | |
| 73240 | Racquets, rental or leasing of | |
| 67720 | Radar stations, airport-located, services of | |
| 54760 | Radiator grilles, installation of | |
| 73210 | Radio accessories and equipment, rental or leasing | |
| 73125 | Radio equipment, commercial, rental or leasing of, without operator | |
| 86560 | Radio equipment, installation of | |
| 62342 | Radio equipment, mail order retail trade services of | |
| 62142 | Radio equipment, non-specialized store retail trade services of | |
| 62442 | Radio equipment, other non-store retail trade services of | |
| 62542 | Radio equipment, retail trade services of, on a fee or contract basis | |
| 62242 | Radio equipment, specialized store retail trade services of | |
| 61142 | Radio equipment, wholesale trade services of, except on a fee or contract basis | |
| 61242 | Radio equipment, wholesale trade services of, on a fee or contract basis | |
| 67300 | Radio navigational aid locating services | |
| 96122 | Radio programme production services | |
| 96149 | Radio programme production services n.e.c. | |
| 96160 | Radio programmes, broadcasting of | |
| 96122 | Radio programmes, live, production of | |
| 96122 | Radio programmes, recorded, production of | |
| 96160 | Radio programmes, scheduling of | |
| 96160 | Radio programmes, selection of | |
| 87153 | Radio transmitters, maintenance and repair of | |
| 96111 | Radio, gathering and cataloguing noises and sounds for use in | |
| 86443 | Radio, television and communication equipment and apparatus manufacturing services | |
| 86350 | Radioactive waste, reprocessing of | |
| 83562 | Radioactivity testing and analysis of concrete | |
| 83562 | Radioactivity testing and analysis of glass | |
| 83562 | Radioactivity testing and analysis of metals | |
| 83562 | Radioactivity testing and analysis of other materials | |
| 83562 | Radioactivity testing and analysis of plastics | |
| 83562 | Radioactivity testing and analysis of textiles | |
| 83562 | Radioactivity testing and analysis of wood | |
| 83569 | Radiographic testing of machine parts | |
| 83569 | Radiographic testing of structures | |
| 83569 | Radiological inspection of welds | |
| 93110 | Radiological services delivered under the direction of medical doctors | |
| 73210 | Radios, rental or leasing of | |
| 87151 | Radios, repair of | |