| L-Lowflo - Water Control and Leak Detection Cork, IrelandEnergy, Utilities & Waste Treatment | Wassermanagement Leckortung Wasserprüfungen | |
| GPGannon Properties Dublin, IrelandReal Estate | Construction work Real estate services Home Building New Homes Family Homes | |
| | Construction work Architectural, construction, engineering and inspection services BER Part L Compliance Reports Technical Assessments | |
| LGLisagallon Group Roscommon, IrelandEnergy, Utilities & Waste Treatment | Construction work Installation services (except software) Cable Installation Cable Recovery Fibre Optic Installation | |
| JFJohn Flanagan Developments Ltd Tullamore, IrelandReal Estate | Construction work Architectural, construction, engineering and inspection services Real Estate Property Development Construction | |
| EEcoliving Ltd IrelandEnergy, Utilities & Waste Treatment | Construction work Architectural, construction, engineering and inspection services | |
| WCWilson Controls Ltd. - Electrical Contractors Dublin, IrelandEnergy, Utilities & Waste Treatment | Construction work Repair and maintenance services Electrical Contracting Maintenance Services Electrical Engineering | |
| OPObelisk Power Systems Dublin, IrelandEnergy, Utilities & Waste Treatment | Construction work Architectural, construction, engineering and inspection services HV Design Build Solutions Engineering | |
| NNetZeroEnergy Bandon, IrelandEnergy, Utilities & Waste Treatment | Construction work Architectural, construction, engineering and inspection services Wind Energy Offshore Wind Solar | |
| MMMarine Materials Ireland IrelandEnergy, Utilities & Waste Treatment | Construction work Architectural, construction, engineering and inspection services Offshore Wind Technology Innovative Engineering Solutions Sustainable Future | |