Company directory · London
Trade and construction companies in London
66,320 active trade and construction companies registered in London, England, by trade.
Trade companies in London in numbers
From the Companies House register and filed balance sheets, as of 1 Oct 2026. The longest-established is Commercial Union Buildings Company Limited, incorporated in 1896.
Still trading, by year incorporated
Companies still active today, by the year they were incorporated; 2026 is the year so far.
Trades in London
- Property developers14,100
- Builders12,075
- Cleaning companies5,627
- Motor traders4,670
- Specialist contractors4,318
- Finishing trades3,947
- Electricians3,448
- Plumbers and heating engineers2,972
- Mechanics and garages2,410
- Installers2,278
- Civil engineering1,853
- Machinery repair and installation1,743
- Painters and decorators1,183
- Landscapers and gardeners835
- Repair services778
- Joiners and carpenters692
- Roofers692
- Facilities management689
- Floor and wall tilers627
- Plasterers485
- Glaziers307
- Scaffolders304
- Groundworks and demolition287
Every company on these pages is an active private limited company that files small or micro-entity accounts. Each one has to deliver accounts to Companies House within 9 months of its year end, pay corporation tax 9 months and 1 day after it, and file a CT600 with HMRC within 12 months.
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