| 87141 | Electrical systems, motor vehicle, repair of | |
| 83563 | Electrical testing and analysis of motors | |
| 54611 | Electrical wiring and fitting services | |
| 54611 | Electrical wiring, installation of | |
| 87152 | Electricity control apparatus, maintenance and repair of | |
| 87152 | Electricity distribution apparatus, maintenance and repair of | |
| 69110 | Electricity transmission and distribution services | |
| 86221 | Electricity transmission and distribution services (on a fee or contract basis) | |
| 69110 | Electricity, distribution of | |
| 81130 | Electricity, research and experimental development concerning | |
| 69110 | Electricity, transmission of | |
| 93122 | Electrocardiograms, interpretation of | |
| 86422 | Electrolysis, metallic coating in chromium by | |
| 86422 | Electrolysis, metallic coating in copper by | |
| 86422 | Electrolysis, metallic coating in nickel by | |
| 86422 | Electrolysis, metallic coating in zinc by | |
| 81110 | Electro-magnetism, research and experimental development concerning | |
| 73123 | Electronic calculators, rental or leasing of | |
| 73124 | Electronic data processors, rental or leasing of, without operator | |
| 73210 | Electronic home entertainment equipment and related accessories, rental or leasing of | |
| 93321 | Elementary play-related teaching of small children in nursery schools | |
| 83392 | Elevated highways, corrosion control programmes for | |
| 83342 | Elevated highways, electrical engineering design services for the construction of | |
| 83332 | Elevated highways, electrical installation appraisal of | |
| 83332 | Elevated highways, engineering advisory and pre-design services for the construction of | |
| 54220 | Elevated highways, general construction of | |
| 83392 | Elevated highways, geotechnical engineering services for the construction of | |
| 83392 | Elevated highways, ground water assessment for the construction of | |
| 83312 | Elevated highways, integrated engineering services for the construction of | |
| 83342 | Elevated highways, mechanical engineering design services for the construction of | |
| 83332 | Elevated highways, mechanical installation appraisal of | |
| 83392 | Elevated highways, other engineering services for the construction of | |
| 83322 | Elevated highways, project management services concerning the construction of | |
| 83342 | Elevated highways, specialty engineering design services for the construction of | |
| 83342 | Elevated highways, structural engineering design services for the construction of | |
| 83392 | Elevated highways, structural failure investigation of | |
| 83332 | Elevated highways, structural installation appraisal of | |
| 83352 | Elevated highways, technical inspection services during the construction of | |
| 83392 | Elevated highways, undertaking contamination studies of | |
| 83332 | Elevated highways, undertaking environmental impact studies of | |