0151 353 3500   |   hello@barbour-abi.com
Barbour ABI Blog

Top Construction Companies in London

by Barbour ABI Content Team

Contractors Kier and Balfour Beatty within top 10 construction companies in London

We’ve curated the Barbour ABI data to bring you the top construction companies within the London region. This includes the top contractors, architects and clients by total value of projects across a 12-month period.

The latest data for London construction companies sees Karakusevic Carson Architects and Mae LLP Architects take the top two positions, with project values of £3.7bn and £3.6bn respectively. Kier is currently in third place at £2.9bn, followed by National Highways and Balfour Beatty.

Top Construction Companies 2023

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

PositionCompanyRoleNumber of ProjectsValue of ProjectsView Projects*
1Karakusevic Carson ArchitectsArchitect3£3,675,000,000See all projects
2Mae LLP ArchitectsArchitect2£3,590,000,000See all projects
3KierContractor124£2,909,897,292See all projects
4National HighwaysClient38£2,682,753,882See all projects
5Balfour BeattyContractor52£2,160,435,691See all projects
6BouyguesContractor27£2,031,332,807See all projects
7ISGContractor66£1,845,922,123See all projects
8MaceContractor22£1,843,570,925See all projects
9Morgan SindallContractor144£1,732,367,107See all projects
10ArdmoreContractor3£1,007,500,000See all projects
11MARKClient2£1,000,000,000See all projects
12Ministry of JusticeClient85£983,147,509See all projects
13Ministry of DefenceClient40£929,443,766See all projects
14Department For EducationClient97£803,225,775See all projects
15Network RailClient81£798,892,186See all projects
16Allford Hall Monaghan MorrisArchitect11£695,000,368See all projects
17BDPArchitect26£640,065,672See all projects
18EPR Architects LimitedArchitect10£622,450,000See all projects
19Haworth Tompkins LimitedArchitect8£527,000,000See all projects
20Pilbrow & PartnersArchitect2£524,966,875See all projects
21John McAslan & PartnersArchitect3£522,500,000See all projects
22HTA Design LlpArchitect13£513,462,887See all projects
23Pattern Design LimitedArchitect1£505,000,000See all projects
24Hawkins Brown ArchitectsArchitect18£499,415,378See all projects
25Capita GroupArchitect10£470,445,000See all projects
26Chetwoods AssociatesArchitect16£469,106,319See all projects
27Sheppard RobsonArchitect15£454,990,583See all projects
28Simten DevelopmentsClient1£450,000,000See all projects
29Corporate Officers of the House of Lords & House of CommonsClient3£442,340,000See all projects
30Transport for LondonClient8£433,109,589See all projects
31Tide ConstructionContractor5£416,500,000See all projects
32Yondr GroupClient1£400,000,000See all projects
33Lifschutz Davidson SandilandsArchitect8£382,015,100See all projects
34Fabrix CapitalClient2£360,000,000See all projects
35SegroClient7£358,293,000See all projects
36Levitt BernsteinArchitect10£355,060,350See all projects
37PurcellArchitect10£351,164,269See all projects
38Stiff & Trevillion Architects LimitedArchitect10£345,933,500See all projects
39Greystar Europe HoldingsClient3£303,575,000See all projects
40Moorfields Eye Hospital NHS TrustClient2£301,000,000See all projects
41Ritz HotelClient1£300,000,000See all projects
42Darling AssociatesArchitect5£274,550,000See all projects
43Fletcher Priest ArchitectsArchitect4£259,000,000See all projects
44Michael Sparks AssociatesArchitect14£254,449,750See all projects
453D Reid (Architects) LimitedArchitect12£252,106,775See all projects
46Olympian HomesClient2£245,000,000See all projects
47Atkins LimitedArchitect17£234,160,000See all projects
48Eric Parry ArchitectsArchitect2£230,000,000See all projects
49FarrellsArchitect2£230,000,000See all projects
50HLM ArchitectsArchitect19£229,506,286See all projects
51Nicholas Grimshaw & Partners LimitedArchitect2£225,000,000See all projects
52Squire and PartnersArchitect11£221,425,400See all projects
53UrbanestClient1£220,000,000See all projects
54Department Of HealthClient15£208,998,583See all projects
55Kohn Pedersen Fox (International) PAArchitect3£205,737,700See all projects
56Assael Architecture LimitedArchitect3£203,400,000See all projects
57ExCeL LondonClient1£200,000,000See all projects
58J G DigbethClient1£200,000,000See all projects
59White Arkitekter ABArchitect1£200,000,000See all projects
60Great Lakes UKClient1£200,000,000See all projects
61HOK International LimitedArchitect4£200,000,000See all projects
62Pascall & Watson Architects - LimerickArchitect2£191,000,000See all projects
63Allies & MorrisonArchitect8£189,100,000See all projects
64BeMo TunnelingContractor1£187,500,000See all projects
65Studio RHEArchitect1£180,000,000See all projects
66Reuben BrothersClient2£180,000,000See all projects
67Hale Architect LimitedArchitect18£177,715,000See all projects
68DominvsClient3£170,000,000See all projects
69Pollard Thomas & Edwards ArchitectsArchitect7£166,375,000See all projects
70Beltane Asset ManagementClient1£165,000,000See all projects
71Invesco Real EstateClient3£163,000,000See all projects
72The Guinness PartnershipClient5£162,700,000See all projects
73Buckley Gray Yeoman Architects LimitedArchitect10£161,541,500See all projects
74GraingerClient2£160,000,000See all projects
75Capital & RegionalClient1£160,000,000See all projects
76Ove Arup & Partners International LimitedArchitect11£156,435,000See all projects
77Westminster City CouncilClient11£154,265,988See all projects
78Leslie Jones ArchitectsArchitect2£151,170,138See all projects
79Access Self Storage SolutionsClient1£150,000,000See all projects
80Fortum GlasgowClient1£150,000,000See all projects
81Rogers Stirk Harbour and PartnersArchitect2£150,000,000See all projects
82Emrys ArchitectsArchitect3£149,500,000See all projects
83GLP TechnologyClient3£148,431,000See all projects
84Simpson Haugh & PartnersArchitect2£147,000,000See all projects
85London Borough Of HaringeyClient11£142,687,933See all projects
86Capital InternationalClient2£140,000,000See all projects
87MAKE ArchitectsArchitect2£140,000,000See all projects
88Legal & GeneralClient18£136,480,500See all projects
89Mountpark LogisticsClient2£130,658,000See all projects
90Woolgate Exchange Unit TrustClient1£130,000,000See all projects
91Barkers of KensingtonClient1£120,000,000See all projects
92RegusClient1£120,000,000See all projects
93REDS10Contractor15£100,710,308See all projects
94Ant Yapi (UK)Contractor1£100,000,000See all projects
95Vision ConstructContractor2£95,000,000See all projects
96Formation Design & BuildContractor6£88,617,549See all projects
97REDContractor7£86,804,000See all projects
98CField ConstructionContractor3£77,025,000See all projects
99Deconstruct (UK) t/a The De Group UKContractor6£75,170,500See all projects
100J MurphyContractor9£74,150,000See all projects

(Source: Barbour ABI, updated April 2023)

How to use the league table
  • View all projects for each listed construction company
  • Use the arrows at the top of each column to:
      • sort by number of construction projects
      • sort by value of construction projects
      • alphabetise construction company names
      • alphabetise the roles to see all architects, contractors or clients
  • Use the search bar to find specific construction companies
  • Select the regions to view the top construction companies in your target area

Discover all the latest projects in the London region with our market-leading data and local expertise.

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

About the author

Barbour ABI Content Team

Barbour ABI Content Team

The Barbour ABI content team is a part of the Marketing department and they thrive 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 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.

Recent News

Barbour ABI Blog


Barbour ABI Blog


Barbour ABI Blog


Claim your 10 free project leads today

Request a callback

Just fill in your details below and a member of our team will give you a call.

Claim your 10 free project leads today

Book a Demo

Helping Contractors

Win More Business

Get in touch with us and see how we can help you win more work.




Barbour ABI White Logo

Place of registration: Barbour ABI Limited Company number: 13427982, Registered office: 5th Floor, 133 Houndsditch, London, EC3A 7BX