Top 10 Construction Companies in Wales

Position	Contractor	Number of projects	Value of projects (£m)	Live Projects
1	Willmott Dixon Holdings Limited	5	108	See all projects
2	Morgan Sindall Group Plc	7	104	See all projects
3	ISG Construction Limited	4	104	See all projects
4	Royal BAM Group	4	84	See all projects
5	Bouygues UK	1	69	See all projects
6	Wates Group Ltd	5	62	See all projects
7	Knights Brown Construction Ltd	3	59	See all projects
8	Lagan Aviation and Infrastructure Ltd	1	44	See all projects
9	Read Construction Ltd	7	41	See all projects
10	Buckthorn Partners & One Equity Partners	2	39	See all projects
No Companies Found

Source: Glenigan | Last modified January 2025

Not a glenigan customer?

Leverage project information and insight for projects in the UK and Republic of Ireland.