| 4290903 | Service Lines Coring & Ditching Contracting | Contracting and building works | Professional | |
| 4290905 | Marina Construction Contracting | Contracting and building works | Commercial | |
| 4290910 | Sport Fields & Halls Contracting | Contracting and building works | Professional | |
| 4290911 | Coastal Reclamation Contracting | Contracting and building works | Commercial | |
| 4290912 | Shooting Ranges Works | Contracting and building works | Professional | |
| 4311001 | Wrecking & Demolition Works | Contracting and building works | Professional | |
| 4311002 | Civil Exploding Works | Contracting and building works | Professional | |
| 4312002 | Land Draining Works | Contracting and building works | Professional | |
| 4312004 | Land Digging, Filling & Leveling Works. | Contracting and building works | Professional | |
| 4312005 | Sand Compacting & Controlling Works | Contracting and building works | Professional | |
| 4321001 | Electrical Fitting Contracting | Contracting and building works | Professional | |
| 4321004 | Computer Network & Infrastructure Installation & Maintenance | Contracting and building works | Professional | |
| 4321006 | Traffic & Road Signs Installation | Contracting and building works | Professional | |
| 4321008 | Radio, TV Station, Cinema, Theater Equipment Installation & Maintenance | Contracting and building works | Professional | |
| 4321009 | Security Equipment Installation & Maintenance | Contracting and building works | Professional | |
| 4321010 | Satellite Receiving Equipment Installation & Maintenance | Contracting and building works | Professional | |
| 4321011 | Electricity Transmission & Control Apparatus Installation | Contracting and building works | Professional | |
| 4321012 | Specialized Piping & Related Fittings Contracting. | Contracting and building works | Professional | |
| 4321013 | Internal Communication Network Installation & Maintenance | Contracting and building works | Professional | |
| 4321014 | Underwater Telecommunications & Power Cables Installation & Maintenance Services | Contracting and building works | Professional | |
