| VGVistec Gas Detection Ltd IrelandFacility Management | Installation services (except software) | |
| PWPEL Waste Reduction Equipment Ballindine, IrelandEnergy, Utilities & Waste Treatment | Construction structures and materials; auxiliary products to construction (except electric apparatus) Waste Reduction Equipment Bottle Crushers Balers | |
| PPSE Dublin, IrelandEnergy, Utilities & Waste Treatment | Installation services (except software) | |
| CECES Environmental Services Ltd Ennis, IrelandEnergy, Utilities & Waste Treatment | Construction structures and materials; auxiliary products to construction (except electric apparatus) Sewer CCTV Surveys No Dig Drain Repair Wastewater Haulage | |
| HLHVSM Ltd. Ashbourne, IrelandEnergy, Utilities & Waste Treatment | Installation services (except software) High Voltage Power Switchgear Transformers | |
| SESSI Environmental Dublin 15, IrelandEnergy, Utilities & Waste Treatment | Construction structures and materials; auxiliary products to construction (except electric apparatus) Marine Response BIOVERSAL Booms | |
| DPDyMac Power IrelandEnergy, Utilities & Waste Treatment | Construction structures and materials; auxiliary products to construction (except electric apparatus) Installation services (except software) Power Generators Hybrid Power Products Clean Fuel Storage Tanks | |
| TCTSG Charge Ireland Baldonnel, IrelandEnergy, Utilities & Waste Treatment | Installation services (except software) EV Charging Electric Vehicle Charging Charging Infrastructure | |
| TRThe Rediscovery Centre Dublin, IrelandEnergy, Utilities & Waste Treatment | Construction structures and materials; auxiliary products to construction (except electric apparatus) Circular Economy Rediscover Furniture Rediscover Cycling | |
| ENESB Networks Dublin, IrelandEnergy, Utilities & Waste Treatment | Installation services (except software) Electricity Distribution Network Maintenance New Connections | |