| 83343 | Industrial plants and processes, mechanical engineering design services for the construction of | |
| 83333 | Industrial plants and processes, mechanical installation appraisal of | |
| 83393 | Industrial plants and processes, other engineering services for the construction of | |
| 83323 | Industrial plants and processes, project management services concerning the construction of | |
| 83343 | Industrial plants and processes, specialty engineering design services for the construction of | |
| 83343 | Industrial plants and processes, structural engineering design services for the construction of | |
| 83393 | Industrial plants and processes, structural failure investigation of | |
| 83333 | Industrial plants and processes, structural installation appraisal of | |
| 83353 | Industrial plants and processes, technical inspection services during the construction of | |
| 83393 | Industrial plants and processes, undertaking contamination studies of | |
| 83333 | Industrial plants and processes, undertaking environmental impact studies of | |
| 83333 | Industrial plants and processes, undertaking project impact studies of | |
| 83333 | Industrial plants and processes, undertaking technical feasibility studies of | |
| 54260 | Industrial plants, general construction of | |
| 54260 | Industrial plants, repair of | |
| 83393 | Industrial processes, corrosion control programmes for the automation of | |
| 83343 | Industrial processes, electrical engineering design services for the automation of | |
| 83333 | Industrial processes, electrical installation appraisal of the automation of | |
| 83333 | Industrial processes, engineering advisory and pre-design services for the automation of | |
| 83393 | Industrial processes, geotechnical engineering services for the automation of | |
| 83393 | Industrial processes, groundwater assessment for the automation of | |
| 83313 | Industrial processes, integrated engineering services for the automation of | |
| 83343 | Industrial processes, mechanical engineering design services for the automation of | |
| 83333 | Industrial processes, mechanical installation appraisal of the automation of | |
| 83393 | Industrial processes, other engineering services for the automation of | |
| 83323 | Industrial processes, project management services concerning the automation of | |
| 83343 | Industrial processes, specialty engineering design services for the automation of | |
| 83343 | Industrial processes, structural engineering design services for the automation of | |
| 83393 | Industrial processes, structural failure investigation of the automation of | |
| 83333 | Industrial processes, structural installation appraisal of the automation of | |
| 83353 | Industrial processes, technical inspection services during the automation of | |
| 83393 | Industrial processes, undertaking contamination studies of the automation of | |
| 83333 | Industrial processes, undertaking environmental impact studies of the automation of | |
| 83333 | Industrial processes, undertaking project impact studies of the automation of | |
| 83333 | Industrial processes, undertaking technical feasibility studies of the automation of | |
| 83490 | Industrial products, designing of | |
| 83812 | Industrial products, photographing of | |
| 72240 | Industrial property, appraisal of, on a fee or contract basis | |
| 85250 | Industrial property, guarding of, against fire | |
| 85250 | Industrial property, guarding of, against illegal entry | |