Top public contract winners in Wales, 2026 (March to September): Plumbing and heating
Limited companies ranked by the number of public contract award notices naming them as supplier in 2026.
- 1Transport for Wales Limited3 awards£2,930,534
- 2Alun Griffiths (Contractors) Limited3 awards£2,303,789
- 32D Building Contractors Ltd3 awards£826,128
- 4GT Davies Ltd3 awards£434,816
- 5CARL ZEISS LTD3 awards£289,200
- 6SNOWDONIA FIRE PROTECTION LIMITED2 awards£1,766,667
- 7RJ Lifts Group Ltd2 awards£1,679,400
- 8ROCHE DIAGNOSTICS LIMITED2 awards£897,699
- 9National Grid Electricity Distribution (South Wales) plc2 awards£528,260
- 10HAEMONETICS LIMITED2 awards£400,000
- 11WASSENBURG LIMITED2 awards£194,740
- 12Drive DeVilbiss Healthcare Limited2 awards£171,338
- 13John Weaver Limited2 awards£80,000
- 14Anglesey & Gwynedd Groundworks LTD2 awards£68,497
- 15Amey OW Limited1 award£16,000,000
- 16Edwards Coaches Ltd1 award£14,097,511
- 17Kerv Digital Limited1 award£14,000,000
- 18VECTOREX CONSTRUCTION LIMITED1 award£11,583,723
- 19Jones & Maher Ltd1 award£11,000,000
- 20BRAY AND SLAUGHTER LIMITED1 award£9,894,368
- 21Kimpton Limited1 award£6,000,000
- 22Cambrian Construction Equipment Ltd1 award£4,000,000
- 23Ikall Ltd1 award£4,000,000
- 24J.D.J. VENDING SERVICES LTD.1 award£3,254,056
- 25S. J. Roberts Construction Limited1 award£3,165,338
How this ranking works
- Data source: official UK government contract award notices.
- Period: award notices published between 1 January and 31 December 2026. The data for this year so far covers March to September (earliest award 13 Mar 2026, latest 29 Sept 2026), so the ranking will change as the year goes on.
- What counts: each award notice naming the company as supplier. Only limited companies and LLPs are listed.
- Order: number of award notices, then total stated award value where two companies have the same number.
- Values are as stated in the notices. Many notices do not state a value, so totals are often incomplete.
- No company can pay to change its rank. Any paid placement is shown separately and labelled "Promoted".
- Data last updated: 29 Sept 2026.