Top 100 Construction Companies in the UK

According to Glenigan construction data, Mears Group is the UK’s top construction company, after winning a £290 million housing improvement contract.

The table below lists the top 100 construction companies in the UK and is based on Glenigan’s comprehensive database of construction activity.

Last updated: July 2026

June 2026

See the top performing companies over the past 12 months

Position	Contractor	Number of projects	Value of projects (£m)	Live Projects
1	Bouygues	1	710	See all projects
2	Skanska UK	2	306	See all projects
3	John Sisk & Son	1	280	See all projects
4	Marlborough Surfacing	1	150	See all projects
5	Kier	11	149	See all projects
6	Winvic	1	130	See all projects
7	Costain	1	122	See all projects
8	Balfour Beatty	1	121	See all projects
9	HG Construction	1	95	See all projects
10	Wates	6	91	See all projects
11	Amber Construction Services	1	75	See all projects
12	Willmott Dixon	4	68	See all projects
13	Morgan Sindall	10	65	See all projects
14	Kori Construction	5	63	See all projects
15	Gilmartins	1	60	See all projects
16	Ian Williams	2	55	See all projects
17	Cardo Group	2	53	See all projects
18	Burton Building Contracts UK	1	53	See all projects
19	TCL Group (London)	1	53	See all projects
20	Hardyman & Co	1	53	See all projects
21	Combined Facilities Management	1	53	See all projects
22	Pk Murphy Construction	1	53	See all projects
23	Greenview Gas	1	53	See all projects
24	Nicor Construction	1	53	See all projects
25	JJ Rhatigan & Company	1	50	See all projects
26	Robertson	3	36	See all projects
27	Ferguson Bidco	1	35	See all projects
28	8Build	3	32	See all projects
29	Caddick Group	1	30	See all projects
30	Sureserve Group	3	26	See all projects
31	Equans Sci Tech	1	23	See all projects
32	Domis Construction	1	23	See all projects
33	Higgins	1	21	See all projects
34	Formation Architectural Design	1	20	See all projects
35	Magrock	1	20	See all projects
36	R G Carter	3	20	See all projects
37	MSB Group	1	20	See all projects
38	Stonebond Properties	1	19	See all projects
39	Gilbert Ash	1	17	See all projects
40	Classic Builders South West	2	17	See all projects
41	Advanced Interior Solutions	2	16	See all projects
42	DE Group Contracting	1	15	See all projects
43	Brims Construction	1	15	See all projects
44	Insite Contracts	1	15	See all projects
45	Ecosafe Heating	1	15	See all projects
46	Wates Construction	1	15	See all projects
47	Torfaen Maintenance Services	1	13	See all projects
48	Stainforth Construction	1	13	See all projects
49	OB Construction	1	12	See all projects
50	Speller Metcalfe	1	12	See all projects
51	CLC Construction	1	11	See all projects
52	London Fire Solutions	1	11	See all projects
53	Multi Installations	1	11	See all projects
54	Clc Group	1	11	See all projects
55	Trinity Renovations	1	10	See all projects
56	Galliford Try	2	10	See all projects
57	Beal Homes	1	10	See all projects
58	Colours Decorating	1	10	See all projects
59	Lindum Group	4	10	See all projects
60	Allroads Asphalt Solutions	1	10	See all projects
61	Eric Wright	1	10	See all projects
62	Shepherd Building Group	1	10	See all projects
63	Red Construction Group	1	9	See all projects
64	MCS Group	1	9	See all projects
65	Carmelcrest	2	9	See all projects
66	E G Carter & Co	1	9	See all projects
67	Vital Energi Utilities	1	9	See all projects
68	George Wilson Developments	1	9	See all projects
69	Ascia Construction	1	8	See all projects
70	Triton Construction	1	8	See all projects
71	Hill Group	2	8	See all projects
72	The Hunt Group	2	8	See all projects
73	Pearce Construction (Barnstaple)	1	8	See all projects
74	RH Fullwood & Co	1	7	See all projects
75	Alcema	1	7	See all projects
76	Knox & Wells	1	7	See all projects
77	DSP Group	1	7	See all projects
78	MacKenzie Construction	1	7	See all projects
79	Adderstone Group	1	7	See all projects
80	Meldrum Construction	2	7	See all projects
81	Braithwaite Group	2	7	See all projects
82	GMG Contractors	1	7	See all projects
83	Blakedown	2	6	See all projects
84	Story Contracting	1	6	See all projects
85	Acorn Cladding Services	1	6	See all projects
86	Buxton Building Contractors	1	6	See all projects
87	Walter Lilly & Co	1	6	See all projects
88	Surserve Compliance North	1	6	See all projects
89	Wilten Construction	1	6	See all projects
90	Benniman Limited	1	5	See all projects
91	Browndog Developments	1	5	See all projects
92	Westcountry Maintenance Service	2	5	See all projects
93	John F Hunt Group	1	5	See all projects
94	Eco Approach	1	5	See all projects
95	Warwick Burt Construction	1	5	See all projects
96	Jr Construction Scotland	1	5	See all projects
97	Overbury	2	5	See all projects
98	Kordel Civils & Building	1	5	See all projects
99	Effectable Construction Services	1	5	See all projects
100	Boost TA	1	5	See all projects
No Companies Found

Source: Glenigan | Last updated January 2026

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