Trefoil Energy Systems Ltd
Contract history
Where the revenue comes from
top 1 buyersOpen tenders matching this supplier's work
Inspection and Testing of High- and Low-Voltage Switchgear – Cardiff and Vale University Health Board (UHW, UHL, Barry Hospital, Woodland House, Genomics)
Closes: Nov 23, 2026
Infrastructure
Inspection, Testing & Maintenance of Low-Voltage (LV) Switchgear – Cwm Taf Morgannwg University Health Board (Rhondda Cynon Taf & Merthyr Tydfil)
Closes: Nov 13, 2026
Infrastructure
Low Voltage Switchgear Upgrade at Substation 4, Wrexham Maelor Hospital
Closes: Nov 20, 2026
Infrastructure
Electrical Maintenance Services for New College Swindon – 4 Year Contract
Closes: Nov 19, 2026
Infrastructure
Electrical Maintenance and Installation Services for Tower Hamlets Council Buildings
Closes: Nov 23, 2026
Construction
Electrical Maintenance Services Contract – New College Swindon (4-year, £400,000)
Closes: Nov 19, 2026
Infrastructure
Supply of Green Hydrogen and Associated Equipment for the Highland Council Region
Closes: Nov 18, 2026
Energy & Environment
Inspection and Testing of Design & Technology Machinery and LEV Systems for Caerphilly Schools
Closes: Nov 10, 2026
Consultancy & Legal
HVAC Maintenance and 24/7 Reactive Repairs for East Renfrewshire Council Commercial Properties (2027–2029)
Closes: Nov 12, 2026
Energy & Environment
Mechanical and Electrical Services for Bedford College Projects (up to £5m)
Closes: Nov 10, 2026
Construction
Gas and Electrical Compliance Works for HG Scotland Properties - Scotland
Closes: Dec 11, 2026
Energy & Environment
Supply of Green Hydrogen (ISO 14687:25) and Associated Equipment – Highland Council Region
Closes: Nov 18, 2026
Energy & Environment
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