Barbour ABI Blog

Top 100 Construction Companies in the UK

by Barbour ABI Content Team

National Highways is the Top Company in Construction with 130 Projects

We’ve curated the Barbour ABI data to bring you the top 100 companies in construction. This includes the top contractors, architects and clients by total value of projects across a 12-month period. Learn how to use the league tables here.

The latest data sees National Highways as the top company in construction involved in 130 projects with a total value of £3.8bn. Following in second is another client in construction, Orsted, with just two projects valued at £3.6bn. In third place we have contractor Kier Construction with a total of 104 projects valued at £2.9bn.

Top Construction Companies 2025

Regional Tables: London | South East | South West | East of England | ManchesterEast Midlands | West Midlands | Northern Ireland | North West | Wales | Yorkshire & the Humber | North East | Scotland 

PositionCompanyRoleNumber of ProjectsValueView Projects
1National HighwaysClient130 £ 3,838,304,313 View projects
2OrstedClient2 £ 3,605,000,000 View projects
3Kier ConstructionContractor104 £ 2,914,790,006 View projects
4Balfour Beatty Group LimitedContractor39 £ 2,851,840,160 View projects
5Clancy Docwra LimitedClient2 £ 2,601,000,000 View projects
6Anglian Water PlcClient1 £ 2,600,000,000 View projects
7Multiplex Construction Europe LimitedContractor7 £ 2,180,000,000 View projects
8Morgan Sindall PlcContractor133 £ 2,175,234,689 View projects
9BAM ConstructionContractor56 £ 1,675,076,269 View projects
10Department for Transport (DfT)Client7 £ 1,581,520,528 View projects
11Vestas Wind SystemsContractor1 £ 1,500,000,000 View projects
12Inch Cape Offshore LimitedClient1 £ 1,500,000,000 View projects
13Department For EducationClient201 £ 1,497,633,135 View projects
14Bowmer & Kirkland LimitedContractor55 £ 1,472,702,349 View projects
15Bouygues Travaux Publics-Murphy Joint VentureContractor1 £ 1,344,687,196 View projects
16Allford Hall Monaghan MorrisArchitect12 £ 1,330,708,000 View projects
17Mace LimitedContractor25 £ 1,289,854,210 View projects
18Wates Construction LimitedContractor48 £ 1,281,204,148 View projects
19Winvic Construction LimitedContractor32 £ 1,265,127,495 View projects
20Galliford Try ConstructionContractor75 £ 1,263,668,245 View projects
21MAKE ArchitectsArchitect6 £ 1,171,000,000 View projects
22Willmott Dixon Holdings LimitedContractor74 £ 1,134,463,084 View projects
23AecomContractor27 £ 1,131,534,420 View projects
24Vinci Construction UK LimitedContractor55 £ 1,095,474,568 View projects
25Hawkins Brown ArchitectsArchitect20 £ 1,030,590,458 View projects
26Graham Construction LimitedContractor23 £ 989,832,500 View projects
27John Sisk & Son LimitedContractor11 £ 905,776,715 View projects
28National Grid Property HoldingsClient4 £ 893,000,000 View projects
29The Berkeley GroupClient4 £ 855,984,000 View projects
30Adamson Associates (International) LimitedArchitect3 £ 828,110,000 View projects
31National Records of ScotlandClient2 £ 803,833,707 View projects
32AHR Building Consultancy LimitedArchitect27 £ 772,789,600 View projects
33West Midlands Combined AuthorityClient7 £ 771,366,432 View projects
34Hill Partnerships LimitedContractor22 £ 771,246,804 View projects
35BDPArchitect24 £ 758,435,816 View projects
36Skanska UKContractor8 £ 737,856,000 View projects
37Midland Metro AllianceClient1 £ 735,000,000 View projects
38Somerset County CouncilClient23 £ 697,855,912 View projects
39HG ConstructionContractor12 £ 693,313,500 View projects
40Stephen George & PartnersArchitect25 £ 686,850,947 View projects
41North Lanarkshire CouncilClient22 £ 667,925,119 View projects
42Network Rail Infrastructure LimitedClient48 £ 657,254,480 View projects
43Mears LimitedClient6 £ 656,253,006 View projects
44McLaren Construction LimitedContractor13 £ 653,151,000 View projects
45Thurrock Power LimitedClient1 £ 645,000,000 View projects
46Ministry of JusticeClient42 £ 615,075,210 View projects
47Ministry of DefenceClient45 £ 605,976,763 View projects
48Eric Parry ArchitectsArchitect3 £ 605,000,000 View projects
49Stride Treglown LimitedArchitect36 £ 603,048,956 View projects
50Caddick Construction LimitedContractor27 £ 597,269,378 View projects
51Ardmore Construction LimitedContractor6 £ 595,600,000 View projects
52Stiff & Trevillion Architects LimitedArchitect9 £ 587,000,000 View projects
53TSL ProjectsContractor6 £ 580,006,000 View projects
54Corstorphine & WrightArchitect31 £ 563,195,670 View projects
55Sir Robert McAlpine LimitedContractor6 £ 556,046,109 View projects
56McAleer & Rushe GroupContractor9 £ 551,190,000 View projects
57Government Property AgencyClient4 £ 546,400,000 View projects
58StantecArchitect2 £ 543,700,000 View projects
59Octavius InfrastructureContractor8 £ 517,883,443 View projects
60Pick EverardContractor8 £ 516,052,675 View projects
61HLM ArchitectsArchitect18 £ 501,818,299 View projects
62Programme Management LimitedContractor1 £ 500,000,000 View projects
63Cross Keys Homes LimitedContractor1 £ 500,000,000 View projects
64Agratas LimitedClient1 £ 500,000,000 View projects
65CO-REClient1 £ 500,000,000 View projects
663XN London LimitedArchitect1 £ 500,000,000 View projects
67Lifschutz Davidson SandilandsArchitect5 £ 493,860,603 View projects
68Milton Keynes CouncilClient15 £ 493,278,694 View projects
69Scottish & Southern EnergyClient9 £ 493,000,000 View projects
70Lendlease LimitedContractor6 £ 486,416,886 View projects
71The Clothworks CompanyClient1 £ 480,000,000 View projects
72Axa Sun LifeClient1 £ 480,000,000 View projects
73Tilbury DouglasContractor42 £ 475,450,109 View projects
74EPR Architects LimitedArchitect5 £ 469,700,000 View projects
75Kohn Pedersen Fox (International) PAArchitect6 £ 467,500,000 View projects
76McLaughlin & HarveyContractor15 £ 465,238,200 View projects
77RG Group Limited Head OfficeContractor8 £ 463,718,500 View projects
78Homes EnglandClient18 £ 463,475,208 View projects
79Pascall & Watson Architects – DublinArchitect4 £ 454,175,600 View projects
80The Crown EstateClient6 £ 452,426,500 View projects
81United Living (South) LimitedContractor18 £ 452,077,495 View projects
82Transport For LondonClient6 £ 450,309,446 View projects
83Feilden Clegg Bradley StudiosArchitect8 £ 448,248,400 View projects
84TP Bennett LlpArchitect7 £ 446,928,000 View projects
85Manchester Airport Group PlcClient1 £ 440,000,000 View projects
86HTA Design LlpArchitect16 £ 439,555,910 View projects
87Vistry PartnershipsContractor13 £ 436,559,662 View projects
88Church Lukas Architectural DesignArchitect3 £ 430,400,000 View projects
89The Harris PartnershipArchitect39 £ 422,318,037 View projects
90The Far East ConsortiumClient2 £ 420,000,000 View projects
91Maccreanor LavingtonArchitect2 £ 420,000,000 View projects
92University of KentClient6 £ 419,347,899 View projects
93Giles Lane Investments LimitedContractor1 £ 418,000,000 View projects
94Bouygues UK LimitedContractor11 £ 414,653,500 View projects
95Clarion Housing GroupClient9 £ 411,184,000 View projects
96Scottish Prison ServicesClient15 £ 405,499,049 View projects
97Southwark CharitiesClient1 £ 400,000,000 View projects
98Dominvs GroupClient3 £ 400,000,000 View projects
99VolkerWessels UKContractor25 £ 399,202,530 View projects
100Birmingham City CouncilClient17 £ 399,171,060 View projects

(Source: Barbour ABI, updated December 2024)

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.

How to use the league table

  • View the highest value construction projects within the selected region
  • Use the arrows at the top of each column to:
      • sort by project start date
      • sort by construction project value
      • alphabetise construction sectors
      • alphabetise by location
  • Use the search bar to find specific construction projects
  • Select the regions to view the top construction projects in your target area

*construction project data visibility will depend on Barbour ABI subscription criteria.

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.

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About the author

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Barbour ABI Content Team

The Barbour ABI content team is a part of the Marketing department and they strive to produce engaging, relevant content to keep you up to date with the latest construction industry insight.

At Barbour ABI we're revolutionising the way we deliver content to the construction industry. From blog posts to reports, we're want to deliver the key information that you need at a pace that allows you to quickly digest and continue with your busy work day.

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