Construct365 rankings

UK Construction League Tables

Our own rankings of the UK's leading contractors, architects, consultants and housebuilders — ranked live by filed-accounts turnover, with a full SIC-code directory alongside.

Paid promotion never affects ranking position. League-table positions are based solely on financial figures (turnover or net worth); promoted businesses are highlighted visually but ranked exactly like everyone else.

Beta: League table data is still being populated and verified during beta — rankings and financial figures may be incomplete and will improve as we add more companies.

Our rankings

Browse by SIC code

Specialist construction

Industry lists:Contractors 100Top 100 ContractorsArchitects 100Top 100 ArchitectsConsultants 150Top 150 ConsultantsHousebuilders 50Top 50 HousebuildersContractors & HB 150Top 150 Contractors & HousebuildersPlant Hirers 100Top 100 Plant Hirers

Top 3 — Annual Turnover

Full Rankings — Annual Turnover

22 companies

Rows marked with show figures sourced from Companies House filed accounts.

#			Reg No.		Previous Period		Year End	Status
🥇	ALTRAD SERVICES LIMITED ltdaltrad.com	Warrington	03337119	£550.9m Estimated	—	FY2023	—	active
🥈	BILFINGER UK LIMITED ltdIs-uk.bilfinger.com	Warrington	05384376	£418.2m Estimated	—	—	—	active
🥉	NG BAILEY LIMITED ltdngbailey.co.uk Contractors 100 #21Contractors & HB 150 #38	Leeds	00342778	£346.1m Estimated	—	FY2023	—	active
4	JOSEPH GALLAGHER GROUP LIMITED ltdJosephgallagher.co.uk	Orsett	03792735	£135.9m Estimated	—	—	—	active
5	ERIC WRIGHT WATER LIMITED ltdEricwright.co.uk	Preston	01835168	£116.2m Estimated	—	—	—	active
6	MAP GROUP (UK) LIMITED ltdMapgroupuk.com	Stockton-On-Tees	02853596	£75.6m Estimated	—	—	—	active
7	RHODAR INDUSTRIAL SERVICES LIMITED ltd	Leeds	06426331	£69.1m Estimated	—	—	—	active
8	THOMAS CONTRACTING LIMITED ltd	Holywell	04496458	£49.7m Estimated	—	—	—	active
9	EJ PARKER TECHNICAL SERVICES (CENTRAL) LTD ltdWtparker.co.uk	Staffordshire	01270585	£49.2m Estimated	—	—	—	active
10	IQA OPERATIONS GROUP LIMITED ltdIqagroup.co.uk	Edinburgh	SC235142	£34.6m Estimated	—	—	—	active
11	MURPHY TECHNICAL SERVICES LIMITED ltdMurphygroup.co.uk	London	00931022	£25.8m Estimated	—	—	—	active
12	KIRKMAN AND JOURDAIN LIMITED ltdKirkmanandjourdain.com	Essex	01766240	£24.6m Estimated	—	—	—	active
13	PP O'CONNOR GROUP LIMITED ltd	Bury	02545561	£23.2m Estimated	—	—	—	active
14	EJ PARKER TECHNICAL SERVICES (SCOTLAND NORTH) LTD ltdKorrie.co.uk	Inverness	SC386013	£17.9m Estimated	—	—	—	active
15	GMR HENDERSON BUILDERS LTD ltdGmrhenderson.co.uk	Wick	SC337487	£17.7m Estimated	—	—	—	active
16	WRING GROUP LIMITED ltd	Bristol	03899806	£15.5m Estimated	—	—	—	active
17	MCCALLAN BROS. LIMITED ltd	Belfast	NI014435	£13.3m Estimated	—	—	—	liquidation
18	TOTAL RECLAIMS DEMOLITION LIMITED ltd	Nottingham	03921753	£13.3m Estimated	—	—	—	active
19	LOVELL POWERMINSTER LIMITED ltdMorgansindallpropertyservices.com	London	01870042	£8.6m Estimated	—	—	—	active
20	TSG POWER UK LTD ltdUcpchoice.co.uk	Birmingham	08878963	£7.8m Estimated	—	—	—	active
21	SORREC (JG) LIMITED ltd	Nottingham	10682238	£69k Filed accounts	—	FY2023	—	active
22	WE R BUILDERZ LTD ltd	London	14936767	£39k Filed accounts	—	FY2024	—	active