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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: September 2026

August 2026

Regions
Counties & Cities
See the top performing companies over the past 12 months
Position Contractor Number of projects Value of projects (£m)
Live Projects
1
Kier 6 174 See all projects
2
Winvic 2 76 See all projects
3
McLaughlin & Harvey 1 70 See all projects
4
McAleer & Rushe Contracts UK 1 62 See all projects
5
John Sisk & Son 2 61 See all projects
6
Caddick Group 1 61 See all projects
7
JRL Group 1 56 See all projects
8
Wates 5 55 See all projects
9
Morgan Sindall 14 51 See all projects
10
Four Square 1 50 See all projects
11
Gilbert Ash 1 40 See all projects
12
Carnanbane Building Contractors 1 40 See all projects
13
Believ 2 38 See all projects
14
Formation Architectural Design 1 34 See all projects
15
Mclaren 1 29 See all projects
16
Willmott Dixon 2 26 See all projects
17
Ogilvie 1 24 See all projects
18
Alexander James Contracts 3 22 See all projects
19
Higgins 1 22 See all projects
20
Heydon & Carr 1 22 See all projects
21
GMI Construction 2 21 See all projects
22
J A Pye (Oxford) 1 20 See all projects
23
Vital Energi Utilities 3 19 See all projects
24
Lawrence Baker 1 18 See all projects
25
Westfields Construction 1 18 See all projects
26
McTear Contracts 1 18 See all projects
27
HG Construction 1 17 See all projects
28
Royal BAM 1 17 See all projects
29
Magrock 1 17 See all projects
30
AC1 Construction 1 16 See all projects
31
Equans Sci Tech 1 16 See all projects
32
G F Tomlinson 1 16 See all projects
33
E G Carter & Co 2 16 See all projects
34
Make One Group 1 15 See all projects
35
FT Construction 2 14 See all projects
36
Heddle Construction 1 14 See all projects
37
Tilbury Douglas 1 14 See all projects
38
G F Holdings 1 13 See all projects
39
Spacemaker Developments 1 12 See all projects
40
RH Insulation Services 1 12 See all projects
41
Parkway 1 12 See all projects
42
Assured CMS 1 12 See all projects
43
Miller Freeman and Sons (Nottingham) 1 12 See all projects
44
Clark Contracts 5 12 See all projects
45
Kind & Company 1 11 See all projects
46
Heron Bros 1 11 See all projects
47
Marlborough Surfacing 1 10 See all projects
48
BW Interiors 1 10 See all projects
49
Mazcraft 2 10 See all projects
50
Neilcott Construction 2 9 See all projects
51
Red Rock Developments 1 9 See all projects
52
Penshurst Construction 1 9 See all projects
53
Living Space Housing 1 9 See all projects
54
Eric Wright 1 8 See all projects
55
Millane Contract Services 1 8 See all projects
56
Triton Construction 1 8 See all projects
57
Emanuel Whittaker 1 8 See all projects
58
Casey Group 1 8 See all projects
59
Bell Group 2 8 See all projects
60
Shore Construction 1 8 See all projects
61
Beard 1 7 See all projects
62
Ibuildup 1 7 See all projects
63
Barnes Construction 1 7 See all projects
64
Westshield 1 6 See all projects
65
Anderson Design & Build 1 6 See all projects
66
Barratt Redrow 1 6 See all projects
67
Penenden Heath Developments 1 5 See all projects
68
H.H. Smith & Sons Co. 1 5 See all projects
69
NCL Contractors 1 5 See all projects
70
Parkinson Builders 1 5 See all projects
71
Hargreaves Contracting 1 5 See all projects
72
Robertson 1 5 See all projects
73
Galliford Try 3 5 See all projects
74
Andrew Scott 1 5 See all projects
75
Bowmer & Kirkland 1 5 See all projects
76
Algo Blairgowrie 1 4 See all projects
77
TSL Projects 1 4 See all projects
78
Faircloth Construction 1 4 See all projects
79
Onyx Fire & Security 1 4 See all projects
80
CCG Construction 1 4 See all projects
81
Martin Hool Construction 1 4 See all projects
82
Dem-Master Demolition 2 4 See all projects
83
Holdcroft Heating 1 4 See all projects
84
T J Evers 1 4 See all projects
85
John Southworth Builders 1 4 See all projects
86
Corrigenda 1 4 See all projects
87
Borras Group Holdings 1 4 See all projects
88
Longley Group 1 4 See all projects
89
Henry Group 1 4 See all projects
90
Frank Rogers Contractors 1 4 See all projects
91
APEXSG 1 4 See all projects
92
Costcap 1 3 See all projects
93
Black & Veatch 1 3 See all projects
94
Pennant Homes 1 3 See all projects
95
R H Fullwood & Co 1 3 See all projects
96
Manning Construction 1 3 See all projects
97
ADL Advanced Contractors 1 2 See all projects
98
Helix Construct 1 2 See all projects
99
Mark Bailey Associates 1 2 See all projects
100
Reds10 1 2 See all projects
No Companies Found
Source: Glenigan | Last updated September 2026

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