Lawray Partnership is top company in construction in Wales
We’ve curated the Barbour ABI data to bring you the top companies in construction in Wales. This includes the top contractors, architects and clients by total value of projects across a 12-month period.
The latest data for the top companies in construction in Wales shows architect Lawray Partnership in first place with eleven projects valued at £1.3bn. In second please is client TATA Steel UK Limited with eight projects valued at £1.29bn. Third place is client AE&E Mll Limited with one project valued at £1.25bn.
Top Construction Companies 2025
Regional Tables: United Kingdom | London | South East | South West | East of England | Manchester | East Midlands | West Midlands | Northern Ireland | North West | Yorkshire & the Humber | North East | Scotland
| Position | Company | Role | Number of Projects | Total Value | Company ID | View Projects |
|---|---|---|---|---|---|---|
| 1 | Lawray Partnership | Architect | 11 | £ 1,319,718,356 | 105823 | View project |
| 2 | TATA Steel UK Limited | Client | 8 | £ 1,293,200,000 | 5052596 | View project |
| 3 | AE&E Mll Limited | Client | 1 | £ 1,250,000,000 | 4007852 | View project |
| 4 | Sir Robert McAlpine Limited | Contractor | 1 | £ 1,250,000,000 | 3129317 | View project |
| 5 | Cardiff County Council | Client | 37 | £ 789,292,103 | 200356 | View project |
| 6 | Powell Dobson Architects | Architect | 17 | £ 788,914,050 | 102735 | View project |
| 7 | St Modwen Developments Limited | Client | 1 | £ 600,000,000 | 5299908 | View project |
| 8 | Arup | Architect | 6 | £ 423,500,000 | 3114453 | View project |
| 9 | Ciner Glass Limited | Client | 2 | £ 353,500,000 | 5426462 | View project |
| 10 | Burns and McDonnell | Architect | 1 | £ 285,000,000 | 5418700 | View project |
| 11 | VDC CWL21 Limited | Client | 1 | £ 285,000,000 | 5490947 | View project |
| 12 | McLaren Construction Limited | Contractor | 2 | £ 271,000,000 | 3307646 | View project |
| 13 | Populous | Architect | 2 | £ 271,000,000 | 3240100 | View project |
| 14 | Oak View Group | Client | 1 | £ 250,000,000 | 5394345 | View project |
| 15 | Roberts Property Developers | Client | 1 | £ 250,000,000 | 3326048 | View project |
| 16 | Transport for Wales Rail Limited | Client | 9 | £ 213,611,531 | 5398910 | View project |
| 17 | Graham Construction Limited | Contractor | 1 | £ 200,000,000 | 3353904 | View project |
| 18 | RWE Group | Client | 4 | £ 178,100,000 | 5348516 | View project |
| 19 | Morgan Sindall Plc | Contractor | 9 | £ 167,375,000 | 2099311 | View project |
| 20 | The Welsh Government | Client | 4 | £ 159,544,000 | 200213 | View project |
| 21 | Network Rail Infrastructure Limited | Client | 3 | £ 150,400,000 | 3193219 | View project |
| 22 | FI Real Estate Management | Client | 8 | £ 139,554,000 | 3476483 | View project |
| 23 | RPS Group | Architect | 2 | £ 138,000,000 | 5507644 | View project |
| 24 | Vale of Glamorgan Borough Council | Client | 15 | £ 135,859,212 | 200396 | View project |
| 25 | Andrew Scott Limited | Contractor | 17 | £ 133,700,000 | 103409 | View project |
| 26 | Innova Renewables | Client | 2 | £ 130,000,000 | 5375397 | View project |
| 27 | Trivallis Housing Association | Client | 3 | £ 128,380,000 | 3786076 | View project |
| 28 | Place First Limited | Architect | 6 | £ 127,341,000 | 5008379 | View project |
| 29 | Welsh Assembly Government | Client | 9 | £ 124,224,250 | 3336675 | View project |
| 30 | Rhondda Cynon Taff County Borough Council | Client | 20 | £ 122,870,668 | 3150051 | View project |
(Source: Barbour ABI, updated October 2025)
League Tables from Barbour ABI
Barbour ABI tracks and reports on projects happening across the UK from pre-planning stages right through to completion. Our 3,000 happy clients use this data to supply their products and services on projects that are right for them, with the most up-to-date contact information available on the market.
Top Construction Projects
Access the top 100 construction projects happening in the UK. The projects are ranked by total value of projects across a 12-month period and can be filtered by sector, location, start date, value, and links straight to the Barbour ABI project leads platform. View the top construction projects overall in the UK as well as major regions and cities.
Tender League Tables
View the latest and hottest projects out to tender in the UK. Filter by value, location, number of bidders, start dates, and link straight to the Barbour ABI project leads platform to see the project in full detail. The Tender League Tables are separated by sector to give you the most insights on construction activity in your field.
Monthly Top 50 League Tables from Barbour ABI
Barbour ABI’s Top 50 League Tables is designed to provide company intelligence for those working within construction and beyond. We report on the top 50 clients, architects and contractors for the month, as well as the last 12 months.
We publish these league tables directly on our website each and every month for free.
